Merge branch 'main' into refactor/incremental-writer

Refactor/incremental writer

__init__.py

@@ -1,7 +1,7 @@
 from typing_extensions import override
 from comfy_api.latest import ComfyExtension, io
 
-from .nodes.lora_merger import LoRAMultiMerge, LoRAMultiMergeDARE
+from .nodes.lora_merger import LoRAMultiMerge, LoRAMultiMergeDARE, LoRAMultiMergeDAREEnhanced
 from .nodes.metakeys import (
     ModelMetaKeys, TextEncoderMetaKeys, LoRAMetaKeys,
     CheckpointMetaKeys, EmbeddingMetaKeys
@@ -65,7 +65,7 @@ class ModelUtilsExtension(ComfyExtension):
             LoRAResizeFixed, LoRAResizeRatio,
             LoRAResizeFrobenius, LoRAResizeCumulative,
             # LoRA Multi-Merge
-            LoRAMultiMerge, LoRAMultiMergeDARE,
+            LoRAMultiMerge, LoRAMultiMergeDARE, LoRAMultiMergeDAREEnhanced,
             # LoRA Merge To Model
             LoRAMergeToModel,
             # Downloaders

nodes/lora_extract_svd.py

@@ -4,6 +4,7 @@ LoRA Extraction via SVD decomposition.
 Native implementation of Low-Rank Adapter extraction with multiple rank selection modes.
 No external dependencies required.
 """
+import fnmatch
 import os
 import re
 import torch
@@ -12,13 +13,12 @@ import folder_paths
 import comfy.utils
 from tqdm import tqdm
 from comfy_api.latest import io
-from safetensors.torch import save_file
 from .device_utils import (
     estimate_model_size, prepare_for_large_operation,
     cleanup_after_operation, get_device_capabilities
 )
 
-from unifiedefficientloader import MemoryEfficientSafeOpen, transfer_to_gpu_pinned
+from unifiedefficientloader import MemoryEfficientSafeOpen, transfer_to_gpu_pinned, IncrementalSafetensorsWriter
 
 
 
@@ -399,14 +399,22 @@ def _extract_chunked_layer(
 # Pattern Matching
 # =============================================================================
 
-def _compile_patterns(pattern_string: str) -> list:
-    """Compile regex patterns from whitespace-separated string."""
+def _compile_patterns(pattern_string: str, glob_mode: bool = False) -> list:
+    """Compile patterns from whitespace-separated string.
+
+    In regex mode (default) returns compiled re.Pattern objects.
+    In glob mode returns plain strings; fnmatch handles matching.
+    """
     if not pattern_string or not pattern_string.strip():
         return []
     patterns = []
     for p in pattern_string.split():
         p = p.strip()
-        if p:
+        if not p:
+            continue
+        if glob_mode:
+            patterns.append(p)
+        else:
             try:
                 patterns.append(re.compile(p))
             except re.error:
@@ -414,8 +422,15 @@ def _compile_patterns(pattern_string: str) -> list:
     return patterns
 
 
-def _matches_any_pattern(key: str, patterns: list) -> bool:
-    """Check if key matches any pattern."""
+def _matches_any_pattern(key: str, patterns: list, glob_mode: bool = False) -> bool:
+    """Check if key matches any pattern.
+
+    Glob mode: each pattern is matched as a substring glob using fnmatch
+    (dots are literal, * matches any sequence of characters).
+    Regex mode: each pattern is a compiled re.Pattern, matched via search().
+    """
+    if glob_mode:
+        return any(fnmatch.fnmatch(key, f"*{p}*") for p in patterns)
     return any(p.search(key) for p in patterns)
 
 
@@ -431,6 +446,7 @@ def extract_lora_from_files(
     conv_param: float,
     device: str,
     save_dtype: str,
+    output_path: str,
     linear_max_rank: int = None,
     conv_max_rank: int = None,
     clamp_quantile: float = 0.99,
@@ -441,9 +457,10 @@ def extract_lora_from_files(
     svd_niter: int = 2,
     lazy_load: bool = True,
     force_clear_cache: bool = True,
-) -> dict[str, torch.Tensor]:
+    glob_skip_patterns: bool = False,
+) -> None:
     """
-    Extract LoRA from difference between two models.
+    Extract LoRA from difference between two models, writing incrementally to disk.
 
     Args:
         model_a_path: Finetuned model path
@@ -453,6 +470,7 @@ def extract_lora_from_files(
         conv_param: Mode parameter for conv layers
         device: Computation device
         save_dtype: Output dtype
+        output_path: Full path to output safetensors file
         linear_max_rank: Max rank for linear layers
         conv_max_rank: Max rank for conv layers
         clamp_quantile: Quantile for weight clamping
@@ -460,16 +478,16 @@ def extract_lora_from_files(
         skip_patterns_str: Patterns for layers to skip
         mismatch_mode: How to handle mismatches
         chunk_large_layers: Enable chunked extraction
+        glob_skip_patterns: When True, treat skip_patterns as glob (* wildcard).
+                            When False (default), treat as Python regex.
     """
-    output_sd = {}
-
     save_torch_dtype = {
         "fp32": torch.float32,
         "fp16": torch.float16,
         "bf16": torch.bfloat16,
     }.get(save_dtype, torch.float16)
 
-    skip_patterns = _compile_patterns(skip_patterns_str)
+    skip_patterns = _compile_patterns(skip_patterns_str, glob_mode=glob_skip_patterns)
 
     # Prepare memory before heavy operation
     total_size_gb = estimate_model_size(model_a_path) + estimate_model_size(model_b_path)
@@ -489,7 +507,7 @@ def extract_lora_from_files(
         def _process_layer(key):
             lora_name = _format_lora_key(key)
 
-            if _matches_any_pattern(key, skip_patterns):
+            if _matches_any_pattern(key, skip_patterns, glob_mode=glob_skip_patterns):
                 return "skipped", None
 
             # Load tensors with pinned memory for CUDA
@@ -570,9 +588,8 @@ def extract_lora_from_files(
                             weight_diff, num_chunks, mode, linear_param, device, linear_max_rank
                         )
                         if lora_up is not None:
-                            layer_results[f"{lora_name}.lora_up.weight"] = lora_up.to(save_torch_dtype).cpu().contiguous()
-                            layer_results[f"{lora_name}.lora_down.weight"] = lora_down.to(save_torch_dtype).cpu().contiguous()
-                            layer_results[f"{lora_name}.alpha"] = torch.tensor(rank).to(save_torch_dtype)
+                            layer_results[f"{lora_name}.lora_B.weight"] = lora_up.to(save_torch_dtype).cpu().contiguous()
+                            layer_results[f"{lora_name}.lora_A.weight"] = lora_down.to(save_torch_dtype).cpu().contiguous()
                             del weight_diff
                             return "chunked", layer_results
 
@@ -586,27 +603,31 @@ def extract_lora_from_files(
                 status = "full"
             else:
                 lora_down, lora_up, _ = result
-                layer_results[f"{lora_name}.lora_down.weight"] = lora_down.to(save_torch_dtype).cpu().contiguous()
-                layer_results[f"{lora_name}.lora_up.weight"] = lora_up.to(save_torch_dtype).cpu().contiguous()
-                layer_results[f"{lora_name}.alpha"] = torch.tensor(lora_down.shape[0]).to(save_torch_dtype)
+                layer_results[f"{lora_name}.lora_A.weight"] = lora_down.to(save_torch_dtype).cpu().contiguous()
+                layer_results[f"{lora_name}.lora_B.weight"] = lora_up.to(save_torch_dtype).cpu().contiguous()
                 status = "extracted"
 
             del weight_diff
             return status, layer_results
 
-        for key in tqdm(weight_keys, desc="Extracting LoRA", unit="layers"):
-            status, layer_sd = _process_layer(key)
-            stats[status] += 1
-            if layer_sd:
-                output_sd.update(layer_sd)
+        writer = IncrementalSafetensorsWriter(output_path)
+        writer.__enter__()
+        try:
+            for key in tqdm(weight_keys, desc="Extracting LoRA", unit="layers"):
+                status, layer_sd = _process_layer(key)
+                stats[status] += 1
+                if layer_sd:
+                    writer.write_dict(layer_sd)
 
-            if force_clear_cache:
-                import gc
-                gc.collect()
-                if torch.cuda.is_available():
-                    torch.cuda.empty_cache()
+                if force_clear_cache:
+                    import gc
+                    gc.collect()
+                    if torch.cuda.is_available():
+                        torch.cuda.empty_cache()
 
-            pbar.update(1)
+                pbar.update(1)
+        finally:
+            writer.__exit__(None, None, None)
 
         print(f"[LoRA Extract] Done: {stats['extracted']} extracted, {stats['chunked']} chunked, "
               f"{stats['full']} full, {stats['skipped']} skipped")
@@ -616,22 +637,12 @@ def extract_lora_from_files(
         handler_b.__exit__(None, None, None)
         cleanup_after_operation()
 
-    return output_sd
-
-
-def _save_lora(output_sd: dict, output_filename: str) -> str:
-    """Save LoRA to file."""
-    if not output_sd:
-        raise ValueError("No LoRA weights extracted")
 
+def _build_lora_output_path(output_filename: str) -> str:
+    """Build output path for LoRA file."""
     output_dir = folder_paths.get_folder_paths("loras")[0]
     os.makedirs(output_dir, exist_ok=True)
-    output_path = os.path.join(output_dir, f"{output_filename.strip()}.safetensors")
-
-    save_file(output_sd, output_path)
-    print(f"[LoRA Extract] Saved to {output_path}")
-
-    return output_path
+    return os.path.join(output_dir, f"{output_filename.strip()}.safetensors")
 
 
 # =============================================================================
@@ -647,85 +658,49 @@ def _get_model_inputs():
     ]
 
 
-def _reconstruct_dots(key: str) -> str:
-    """Reconstruct dot structure from underscored key using heuristics."""
-    # Block indices: input_blocks_1 -> input_blocks.1
-    blocks = [
-        "input_blocks", "output_blocks", "middle_block",
-        "transformer_blocks", "single_transformer_blocks",
-        "double_blocks", "single_blocks",
-        "down_blocks", "up_blocks", "mid_block",
-        "attentions", "resnets", "upsamplers", "downsamplers"
-    ]
-    for b in blocks:
-        key = re.sub(f"{b}_(\\d+)", f"{b}.\\1", key)
-
-    # Sequential numbers: .1_1 -> .1.1
-    key = re.sub(r"(\.\d+)_(\d+)", r"\1.\2", key)
-
-    # Separators that should be preceded by dot
-    separators = [
-        "transformer_blocks", "single_transformer_blocks",
-        "attn1", "attn2", "attn",
-        "img_attn", "txt_attn",
-        "to_q", "to_k", "to_v", "to_out",
-        "q_proj", "k_proj", "v_proj", "out_proj",
-        "qkv", "proj", "ff", "net",
-        "norm1", "norm2", "norm3", "norm",
-        "time_emb_proj"
-    ]
-    for s in separators:
-        key = key.replace(f"_{s}", f".{s}")
-
-    # Special case: to_out_0 -> to_out.0
-    key = re.sub(r"to_out_(\d+)", r"to_out.\1", key)
-
-    return key
-
-
 def _format_lora_key(key: str) -> str:
     """
     Format the key for LoRA saving.
-    Standardizes to 'diffusion_model.' or 'transformer.' prefix.
+    Always standardizes to 'diffusion_model.' prefix for maximum compatibility.
+
+    ComfyUI maps 'diffusion_model.<layer>' generically for all model types, making
+    it universally compatible. The 'transformer.' prefix only works for a subset of
+    model types via model-specific mapping code and is intentionally not used here.
     """
     if key.endswith(".weight"):
         key = key[:-7]
 
-    # Handle ComfyUI Checkpoint wrapper
-    if key.startswith("model.diffusion_model.") or key.startswith("net."):
-        # Check if it's a Diffusers-format transformer inside a checkpoint
-        if key.startswith("model.diffusion_model."):
-            inner_key = key[22:]  # len("model.diffusion_model.")
-        else:
-            inner_key = key[4:]   # len("net.")
-
-        if inner_key.startswith("transformer_blocks") or inner_key.startswith("single_transformer_blocks"):
-            return f"transformer.{inner_key}"
-        # Standard checkpoint or Original Flux
+    # Handle ComfyUI Checkpoint wrapper (ldm/sgm format: model.diffusion_model.*)
+    if key.startswith("model.diffusion_model."):
+        inner_key = key[22:]  # strip len("model.diffusion_model.")
         return f"diffusion_model.{inner_key}"
 
-    # Handle direct Diffusers keys
+    # Handle net.* wrapper
+    if key.startswith("net."):
+        inner_key = key[4:]  # strip len("net.")
+        return f"diffusion_model.{inner_key}"
+
+    # Handle direct Diffusers keys (transformer_blocks.* / single_transformer_blocks.* without prefix)
     if key.startswith("transformer_blocks") or key.startswith("single_transformer_blocks"):
-        return f"transformer.{key}"
+        return f"diffusion_model.{key}"
 
     # Handle legacy lora_unet_ prefix (for resizing without base)
     if key.startswith("lora_unet_"):
-        core = key[10:]
-        dotted = _reconstruct_dots(core)
-        # Check if reconstructed key implies transformer format
-        if dotted.startswith("transformer_blocks") or dotted.startswith("single_transformer_blocks"):
-            return f"transformer.{dotted}"
-        return f"diffusion_model.{dotted}"
-
-    # Handle already correct prefixes
-    if key.startswith("diffusion_model.") or key.startswith("transformer."):
         return key
 
-    # Handle known Unet blocks (Diffusers format UNet)
+    # Handle already-prefixed keys
+    if key.startswith("diffusion_model."):
+        return key
+
+    # Absorb now-invalid transformer. prefix into diffusion_model. for compatibility
+    if key.startswith("transformer."):
+        return f"diffusion_model.{key[12:]}"
+
+    # Handle known Diffusers UNet blocks
     if any(key.startswith(p) for p in ["down_blocks", "up_blocks", "mid_block", "conv_in", "conv_out", "time_embedding", "class_embedding"]):
         return f"diffusion_model.{key}"
 
-    # Default fallback to diffusion_model
+    # Default fallback
     return f"diffusion_model.{key}"
 
 
@@ -744,7 +719,10 @@ def _get_common_inputs():
         io.Combo.Input("save_dtype", options=["fp16", "bf16", "fp32"], default="fp16"),
         io.Combo.Input("device", options=["cuda", "cpu"], default="cuda"),
         io.String.Input("skip_patterns", default="", multiline=True,
-                       tooltip="Regex patterns for layers to skip"),
+                       tooltip="Patterns for layers to skip (regex or glob depending on glob_skip_patterns)"),
+        io.Boolean.Input("glob_skip_patterns", default=False,
+                        tooltip="When True, skip_patterns use glob syntax (* = any sequence, ? = any char, dots are literal). "
+                                "When False (default), patterns are Python regex matched as substrings."),
     ]
 
 
@@ -775,19 +753,20 @@ class LoRAExtractFixed(io.ComfyNode):
     @classmethod
     def execute(cls, model_a, model_b, linear_dim, conv_dim, svd_niter, chunk_large_layers,
                 clamp_quantile, min_diff, mismatch_mode, output_filename,
-                save_dtype, device, skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
+                save_dtype, device, skip_patterns, glob_skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
 
         model_a_path = folder_paths.get_full_path_or_raise("diffusion_models", model_a)
         model_b_path = folder_paths.get_full_path_or_raise("diffusion_models", model_b)
+        output_path = _build_lora_output_path(output_filename)
 
-        output_sd = extract_lora_from_files(
+        extract_lora_from_files(
             model_a_path, model_b_path, "fixed", linear_dim, conv_dim,
-            device, save_dtype, linear_dim, conv_dim,
+            device, save_dtype, output_path, linear_dim, conv_dim,
             clamp_quantile, min_diff, skip_patterns, mismatch_mode, chunk_large_layers, svd_niter,
-            lazy_load, force_clear_cache
+            lazy_load, force_clear_cache, glob_skip_patterns
         )
 
-        return io.NodeOutput(_save_lora(output_sd, output_filename))
+        return io.NodeOutput(output_path)
 
 
 class LoRAExtractRatio(io.ComfyNode):
@@ -819,19 +798,21 @@ class LoRAExtractRatio(io.ComfyNode):
     @classmethod
     def execute(cls, model_a, model_b, linear_ratio, conv_ratio, linear_max_rank, conv_max_rank,
                 chunk_large_layers, clamp_quantile, min_diff, mismatch_mode, output_filename,
-                save_dtype, device, skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
+                save_dtype, device, skip_patterns, glob_skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
 
         model_a_path = folder_paths.get_full_path_or_raise("diffusion_models", model_a)
         model_b_path = folder_paths.get_full_path_or_raise("diffusion_models", model_b)
+        output_path = _build_lora_output_path(output_filename)
 
-        output_sd = extract_lora_from_files(
+        extract_lora_from_files(
             model_a_path, model_b_path, "ratio", linear_ratio, conv_ratio,
-            device, save_dtype, linear_max_rank, conv_max_rank,
+            device, save_dtype, output_path, linear_max_rank, conv_max_rank,
             clamp_quantile, min_diff, skip_patterns, mismatch_mode, chunk_large_layers,
-            lazy_load=lazy_load, force_clear_cache=force_clear_cache
+            lazy_load=lazy_load, force_clear_cache=force_clear_cache,
+            glob_skip_patterns=glob_skip_patterns
         )
 
-        return io.NodeOutput(_save_lora(output_sd, output_filename))
+        return io.NodeOutput(output_path)
 
 
 class LoRAExtractQuantile(io.ComfyNode):
@@ -863,19 +844,21 @@ class LoRAExtractQuantile(io.ComfyNode):
     @classmethod
     def execute(cls, model_a, model_b, linear_quantile, conv_quantile, linear_max_rank, conv_max_rank,
                 chunk_large_layers, clamp_quantile, min_diff, mismatch_mode, output_filename,
-                save_dtype, device, skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
+                save_dtype, device, skip_patterns, glob_skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
 
         model_a_path = folder_paths.get_full_path_or_raise("diffusion_models", model_a)
         model_b_path = folder_paths.get_full_path_or_raise("diffusion_models", model_b)
+        output_path = _build_lora_output_path(output_filename)
 
-        output_sd = extract_lora_from_files(
+        extract_lora_from_files(
             model_a_path, model_b_path, "quantile", linear_quantile, conv_quantile,
-            device, save_dtype, linear_max_rank, conv_max_rank,
+            device, save_dtype, output_path, linear_max_rank, conv_max_rank,
             clamp_quantile, min_diff, skip_patterns, mismatch_mode, chunk_large_layers,
-            lazy_load=lazy_load, force_clear_cache=force_clear_cache
+            lazy_load=lazy_load, force_clear_cache=force_clear_cache,
+            glob_skip_patterns=glob_skip_patterns
         )
 
-        return io.NodeOutput(_save_lora(output_sd, output_filename))
+        return io.NodeOutput(output_path)
 
 
 class LoRAExtractKnee(io.ComfyNode):
@@ -905,19 +888,21 @@ class LoRAExtractKnee(io.ComfyNode):
     @classmethod
     def execute(cls, model_a, model_b, knee_method, linear_max_rank, conv_max_rank,
                 chunk_large_layers, clamp_quantile, min_diff, mismatch_mode, output_filename,
-                save_dtype, device, skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
+                save_dtype, device, skip_patterns, glob_skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
 
         model_a_path = folder_paths.get_full_path_or_raise("diffusion_models", model_a)
         model_b_path = folder_paths.get_full_path_or_raise("diffusion_models", model_b)
+        output_path = _build_lora_output_path(output_filename)
 
-        output_sd = extract_lora_from_files(
+        extract_lora_from_files(
             model_a_path, model_b_path, knee_method, 0, 0,
-            device, save_dtype, linear_max_rank, conv_max_rank,
+            device, save_dtype, output_path, linear_max_rank, conv_max_rank,
             clamp_quantile, min_diff, skip_patterns, mismatch_mode, chunk_large_layers,
-            lazy_load=lazy_load, force_clear_cache=force_clear_cache
+            lazy_load=lazy_load, force_clear_cache=force_clear_cache,
+            glob_skip_patterns=glob_skip_patterns
         )
 
-        return io.NodeOutput(_save_lora(output_sd, output_filename))
+        return io.NodeOutput(output_path)
 
 
 class LoRAExtractFrobenius(io.ComfyNode):
@@ -949,16 +934,18 @@ class LoRAExtractFrobenius(io.ComfyNode):
     @classmethod
     def execute(cls, model_a, model_b, linear_target, conv_target, linear_max_rank, conv_max_rank,
                 chunk_large_layers, clamp_quantile, min_diff, mismatch_mode, output_filename,
-                save_dtype, device, skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
+                save_dtype, device, skip_patterns, glob_skip_patterns, lazy_load, force_clear_cache) -> io.NodeOutput:
 
         model_a_path = folder_paths.get_full_path_or_raise("diffusion_models", model_a)
         model_b_path = folder_paths.get_full_path_or_raise("diffusion_models", model_b)
+        output_path = _build_lora_output_path(output_filename)
 
-        output_sd = extract_lora_from_files(
+        extract_lora_from_files(
             model_a_path, model_b_path, "sv_fro", linear_target, conv_target,
-            device, save_dtype, linear_max_rank, conv_max_rank,
+            device, save_dtype, output_path, linear_max_rank, conv_max_rank,
             clamp_quantile, min_diff, skip_patterns, mismatch_mode, chunk_large_layers,
-            lazy_load=lazy_load, force_clear_cache=force_clear_cache
+            lazy_load=lazy_load, force_clear_cache=force_clear_cache,
+            glob_skip_patterns=glob_skip_patterns
         )
 
-        return io.NodeOutput(_save_lora(output_sd, output_filename))
+        return io.NodeOutput(output_path)

nodes/lora_resize.py

@@ -12,11 +12,10 @@ import folder_paths
 import comfy.utils
 from tqdm import tqdm
 from comfy_api.latest import io
-from safetensors.torch import save_file
-from typing import Optional, Dict, Tuple, List
 from .device_utils import estimate_model_size, prepare_for_large_operation, cleanup_after_operation
 
-from unifiedefficientloader import MemoryEfficientSafeOpen, transfer_to_gpu_pinned
+from unifiedefficientloader import MemoryEfficientSafeOpen, transfer_to_gpu_pinned, IncrementalSafetensorsWriter
+from typing import Optional, Dict, Tuple, List
 
 
 
@@ -419,66 +418,7 @@ def resize_lora_file(
             print(f"[LoRA Resize] Original dim={network_dim}, alpha={network_alpha:.1f}, scale={scale:.3f}")
             print(f"[LoRA Resize] Resizing with method={method_str}, max_rank={new_rank}")
 
-        output_sd = {}
-        fro_list = []
-        pbar = comfy.utils.ProgressBar(len(pairs))
-
-        with torch.no_grad():
-            for block_name, block_keys in tqdm(pairs.items(), desc="Resizing layers", unit="layers"):
-                if "down" not in block_keys or "up" not in block_keys:
-                    pbar.update(1)
-                    continue
-
-                lora_down = handler.get_tensor(block_keys["down"])
-                lora_up = handler.get_tensor(block_keys["up"])
-
-                is_conv = len(lora_down.shape) == 4
-
-                # Transfer to GPU with pinned memory if available
-                if device == 'cuda':
-                    lora_down = transfer_to_gpu_pinned(lora_down, device, torch.float32)
-                    lora_up = transfer_to_gpu_pinned(lora_up, device, torch.float32)
-
-                # Merge and re-extract
-                if is_conv:
-                    weight = _merge_conv(lora_down, lora_up, device)
-                    result = _extract_conv(weight, new_rank, dynamic_method, dynamic_param, scale, svd_niter)
-                else:
-                    weight = _merge_linear(lora_down, lora_up, device)
-                    result = _extract_linear(weight, new_rank, dynamic_method, dynamic_param, scale, svd_niter)
-
-                del weight, lora_down, lora_up
-
-                fro_list.append(result['fro_retained'])
-
-                # Store using same format suffixes as input
-                down_suffix = format_info["down_suffix"]
-                up_suffix = format_info["up_suffix"]
-                alpha_suffix = format_info["alpha_suffix"]
-
-                # Standardize prefix using heuristics if possible
-                new_block_name = _format_lora_key(block_name)
-
-                output_sd[f"{new_block_name}{down_suffix}"] = result["lora_down"].to(save_dtype)
-                output_sd[f"{new_block_name}{up_suffix}"] = result["lora_up"].to(save_dtype)
-                if alpha_suffix:
-                    output_sd[f"{new_block_name}{alpha_suffix}"] = torch.tensor(result["new_alpha"]).to(save_dtype)
-
-                del result
-                import gc
-                gc.collect()
-                if torch.cuda.is_available():
-                    torch.cuda.empty_cache()
-
-                pbar.update(1)
-
-        if verbose and fro_list:
-            import numpy as np
-            avg_fro = np.mean(fro_list)
-            std_fro = np.std(fro_list)
-            print(f"[LoRA Resize] Average Frobenius retention: {avg_fro:.1%} ± {std_fro:.3f}")
-
-        # Update metadata
+        # Build metadata and output path before loop (all values known at this point)
         if dynamic_method:
             metadata["ss_training_comment"] = f"Dynamic resize with {dynamic_method}: {dynamic_param} from dim {network_dim}"
             metadata["ss_network_dim"] = "Dynamic"
@@ -488,14 +428,78 @@ def resize_lora_file(
             metadata["ss_network_dim"] = str(new_rank)
             metadata["ss_network_alpha"] = str(scale * new_rank)
 
-        # Save
         output_dir = folder_paths.get_folder_paths("loras")[0]
         os.makedirs(output_dir, exist_ok=True)
         output_path = os.path.join(output_dir, f"{output_filename.strip()}.safetensors")
 
-        save_file(output_sd, output_path, metadata)
-        print(f"[LoRA Resize] Saved to {output_path}")
+        fro_list = []
+        pbar = comfy.utils.ProgressBar(len(pairs))
 
+        writer = IncrementalSafetensorsWriter(output_path, metadata=metadata)
+        writer.__enter__()
+        try:
+            with torch.no_grad():
+                for block_name, block_keys in tqdm(pairs.items(), desc="Resizing layers", unit="layers"):
+                    if "down" not in block_keys or "up" not in block_keys:
+                        pbar.update(1)
+                        continue
+
+                    lora_down = handler.get_tensor(block_keys["down"])
+                    lora_up = handler.get_tensor(block_keys["up"])
+
+                    is_conv = len(lora_down.shape) == 4
+
+                    # Transfer to GPU with pinned memory if available
+                    if device == 'cuda':
+                        lora_down = transfer_to_gpu_pinned(lora_down, device, torch.float32)
+                        lora_up = transfer_to_gpu_pinned(lora_up, device, torch.float32)
+
+                    # Merge and re-extract
+                    if is_conv:
+                        weight = _merge_conv(lora_down, lora_up, device)
+                        result = _extract_conv(weight, new_rank, dynamic_method, dynamic_param, scale, svd_niter)
+                    else:
+                        weight = _merge_linear(lora_down, lora_up, device)
+                        result = _extract_linear(weight, new_rank, dynamic_method, dynamic_param, scale, svd_niter)
+
+                    del weight, lora_down, lora_up
+
+                    fro_list.append(result['fro_retained'])
+
+                    # Store using same format suffixes as input
+                    down_suffix = format_info["down_suffix"]
+                    up_suffix = format_info["up_suffix"]
+                    alpha_suffix = format_info["alpha_suffix"]
+
+                    # Preserve original key format from input LoRA verbatim
+                    new_block_name = block_name
+
+                    block_sd = {
+                        f"{new_block_name}{down_suffix}": result["lora_down"].to(save_dtype),
+                        f"{new_block_name}{up_suffix}": result["lora_up"].to(save_dtype),
+                    }
+                    if alpha_suffix:
+                        block_sd[f"{new_block_name}{alpha_suffix}"] = torch.tensor(result["new_alpha"]).to(save_dtype)
+
+                    writer.write_dict(block_sd)
+
+                    del result
+                    import gc
+                    gc.collect()
+                    if torch.cuda.is_available():
+                        torch.cuda.empty_cache()
+
+                    pbar.update(1)
+        finally:
+            writer.__exit__(None, None, None)
+
+        if verbose and fro_list:
+            import numpy as np
+            avg_fro = np.mean(fro_list)
+            std_fro = np.std(fro_list)
+            print(f"[LoRA Resize] Average Frobenius retention: {avg_fro:.1%} ± {std_fro:.3f}")
+
+        print(f"[LoRA Resize] Saved to {output_path}")
         return output_path
 
     finally:
@@ -715,7 +719,7 @@ def merge_loras_to_model(
                 print(f"[LoRA Merge To Model] LoRA {i+1}: {format_info['format']}, {len(pairs)} layers, dim={network_dim}")
 
         # Common prefixes
-        BASE_PREFIXES = ["model.diffusion_model.", "diffusion_model.", "transformer.", "model."]
+        BASE_PREFIXES = ["model.diffusion_model.", "diffusion_model.", "transformer.", "model.", "net."]
         LORA_PREFIXES = [
             "lora_unet_", "lora_transformer_", "lora_te1_", "lora_te2_", "lora_te_",
             "lycoris_", "diffusion_model.", "transformer.", "unet."
@@ -761,7 +765,11 @@ def merge_loras_to_model(
         base_metadata = base_handler.metadata().copy() if base_handler.metadata() else {}
         base_metadata["merge_comment"] = f"Merged {len(lora_paths)} LoRAs with weights: {lora_weights}"
 
-        output_sd = {}
+        # Build output path before loop
+        base_dir = os.path.dirname(base_model_path)
+        os.makedirs(base_dir, exist_ok=True)
+        output_path = os.path.join(base_dir, f"{output_filename.strip()}.safetensors")
+
         stats = {"merged": 0, "copied": 0, "skipped": 0}
         base_keys = list(base_handler.keys())
         pbar = comfy.utils.ProgressBar(len(base_keys))
@@ -769,118 +777,116 @@ def merge_loras_to_model(
         if verbose:
             print(f"[LoRA Merge To Model] Processing {len(base_keys)} base model keys...")
 
-        with torch.no_grad():
-            for base_key in tqdm(base_keys, desc="Merging to model", unit="keys"):
-                # Check skip patterns
-                if _matches_any_pattern(base_key, skip_patterns):
-                    stats["skipped"] += 1
-                    pbar.update(1)
-                    continue
+        writer = IncrementalSafetensorsWriter(output_path, metadata=base_metadata)
+        writer.__enter__()
+        try:
+            with torch.no_grad():
+                for base_key in tqdm(base_keys, desc="Merging to model", unit="keys"):
+                    # Check skip patterns
+                    if _matches_any_pattern(base_key, skip_patterns):
+                        stats["skipped"] += 1
+                        pbar.update(1)
+                        continue
 
-                # Load base weight
-                cpu_base = base_handler.get_tensor(base_key)
+                    # Load base weight
+                    cpu_base = base_handler.get_tensor(base_key)
 
-                # Only process weight tensors for LoRA merging
-                if base_key.endswith(".weight"):
-                    core = extract_core_layer_base(base_key)
-                    core_underscored = core.replace(".", "_")
+                    # Only process weight tensors for LoRA merging
+                    if base_key.endswith(".weight"):
+                        core = extract_core_layer_base(base_key)
+                        core_underscored = core.replace(".", "_")
 
-                    # Check if any LoRA contributes to this layer
-                    if core_underscored in lora_lookup:
-                        # Transfer to GPU for computation
-                        if device == 'cuda':
-                            base_weight = transfer_to_gpu_pinned(cpu_base, device, torch.float32)
-                        else:
-                            base_weight = cpu_base.to(device=device, dtype=torch.float32)
-                        del cpu_base
-
-                        # Accumulate deltas from all contributing LoRAs
-                        for info, block_keys in lora_lookup[core_underscored]:
-                            is_full_diff = info["format_info"].get("is_full_diff", False)
-
-                            if is_full_diff:
-                                # Full diff format
-                                if "diff" not in block_keys:
-                                    continue
-                                cpu_diff = info["handler"].get_tensor(block_keys["diff"])
-                                if device == 'cuda':
-                                    delta = transfer_to_gpu_pinned(cpu_diff, device, torch.float32)
-                                else:
-                                    delta = cpu_diff.to(device=device, dtype=torch.float32)
-                                del cpu_diff
-                                effective_scale = info["weight"]
+                        # Check if any LoRA contributes to this layer
+                        if core_underscored in lora_lookup:
+                            # Transfer to GPU for computation
+                            if device == 'cuda':
+                                base_weight = transfer_to_gpu_pinned(cpu_base, device, torch.float32)
                             else:
-                                # Standard LoRA format
-                                if "down" not in block_keys or "up" not in block_keys:
-                                    continue
+                                base_weight = cpu_base.to(device=device, dtype=torch.float32)
+                            del cpu_base
 
-                                cpu_down = info["handler"].get_tensor(block_keys["down"])
-                                cpu_up = info["handler"].get_tensor(block_keys["up"])
-                                if device == 'cuda':
-                                    lora_down = transfer_to_gpu_pinned(cpu_down, device, torch.float32)
-                                    lora_up = transfer_to_gpu_pinned(cpu_up, device, torch.float32)
+                            # Accumulate deltas from all contributing LoRAs
+                            for info, block_keys in lora_lookup[core_underscored]:
+                                is_full_diff = info["format_info"].get("is_full_diff", False)
+
+                                if is_full_diff:
+                                    # Full diff format
+                                    if "diff" not in block_keys:
+                                        continue
+                                    cpu_diff = info["handler"].get_tensor(block_keys["diff"])
+                                    if device == 'cuda':
+                                        delta = transfer_to_gpu_pinned(cpu_diff, device, torch.float32)
+                                    else:
+                                        delta = cpu_diff.to(device=device, dtype=torch.float32)
+                                    del cpu_diff
+                                    effective_scale = info["weight"]
                                 else:
-                                    lora_down = cpu_down.to(device=device, dtype=torch.float32)
-                                    lora_up = cpu_up.to(device=device, dtype=torch.float32)
-                                del cpu_down, cpu_up
+                                    # Standard LoRA format
+                                    if "down" not in block_keys or "up" not in block_keys:
+                                        continue
 
-                                # Get alpha
-                                if "alpha" in block_keys:
-                                    alpha_tensor = info["handler"].get_tensor(block_keys["alpha"])
-                                    layer_alpha = float(alpha_tensor.item())
-                                else:
-                                    layer_alpha = float(info["network_dim"])
-                                layer_scale = layer_alpha / info["network_dim"] if info["network_dim"] > 0 else 1.0
-                                effective_scale = layer_scale * info["weight"]
+                                    cpu_down = info["handler"].get_tensor(block_keys["down"])
+                                    cpu_up = info["handler"].get_tensor(block_keys["up"])
+                                    if device == 'cuda':
+                                        lora_down = transfer_to_gpu_pinned(cpu_down, device, torch.float32)
+                                        lora_up = transfer_to_gpu_pinned(cpu_up, device, torch.float32)
+                                    else:
+                                        lora_down = cpu_down.to(device=device, dtype=torch.float32)
+                                        lora_up = cpu_up.to(device=device, dtype=torch.float32)
+                                    del cpu_down, cpu_up
 
-                                # Compute delta
-                                is_conv = len(lora_down.shape) == 4
-                                if is_conv:
-                                    in_rank, in_size, kernel_size, k_ = lora_down.shape
-                                    out_size, out_rank, _, _ = lora_up.shape
-                                    delta = lora_up.reshape(out_size, -1) @ lora_down.reshape(in_rank, -1)
-                                    delta = delta.reshape(out_size, in_size, kernel_size, kernel_size)
-                                else:
-                                    delta = lora_up @ lora_down
-                                del lora_down, lora_up
+                                    # Get alpha
+                                    if "alpha" in block_keys:
+                                        alpha_tensor = info["handler"].get_tensor(block_keys["alpha"])
+                                        layer_alpha = float(alpha_tensor.item())
+                                    else:
+                                        layer_alpha = float(info["network_dim"])
+                                    layer_scale = layer_alpha / info["network_dim"] if info["network_dim"] > 0 else 1.0
+                                    effective_scale = layer_scale * info["weight"]
 
-                            # Apply delta to base weight
-                            base_weight = base_weight + effective_scale * delta
-                            del delta
+                                    # Compute delta
+                                    is_conv = len(lora_down.shape) == 4
+                                    if is_conv:
+                                        in_rank, in_size, kernel_size, k_ = lora_down.shape
+                                        out_size, out_rank, _, _ = lora_up.shape
+                                        delta = lora_up.reshape(out_size, -1) @ lora_down.reshape(in_rank, -1)
+                                        delta = delta.reshape(out_size, in_size, kernel_size, kernel_size)
+                                    else:
+                                        delta = lora_up @ lora_down
+                                    del lora_down, lora_up
 
-                        # Store merged weight
-                        output_sd[base_key] = base_weight.to(save_dtype).cpu().contiguous()
-                        del base_weight
-                        stats["merged"] += 1
+                                # Apply delta to base weight
+                                base_weight = base_weight + effective_scale * delta
+                                del delta
+
+                            # Write merged weight
+                            writer.write(base_key, base_weight.to(save_dtype).cpu().contiguous())
+                            del base_weight
+                            stats["merged"] += 1
+                        else:
+                            # No LoRA contribution, write as-is
+                            writer.write(base_key, cpu_base.to(save_dtype).contiguous())
+                            del cpu_base
+                            stats["copied"] += 1
                     else:
-                        # No LoRA contribution, copy as-is
-                        output_sd[base_key] = cpu_base.to(save_dtype).contiguous()
+                        # Non-weight tensor (bias, norm, etc.), write as-is
+                        writer.write(base_key, cpu_base.to(save_dtype).contiguous())
                         del cpu_base
                         stats["copied"] += 1
-                else:
-                    # Non-weight tensor (bias, norm, etc.), copy as-is
-                    output_sd[base_key] = cpu_base.to(save_dtype).contiguous()
-                    del cpu_base
-                    stats["copied"] += 1
 
-                import gc
-                gc.collect()
-                if torch.cuda.is_available():
-                    torch.cuda.empty_cache()
+                    import gc
+                    gc.collect()
+                    if torch.cuda.is_available():
+                        torch.cuda.empty_cache()
 
-                pbar.update(1)
+                    pbar.update(1)
+        finally:
+            writer.__exit__(None, None, None)
 
         if verbose:
             print(f"[LoRA Merge To Model] Done: {stats['merged']} merged, {stats['copied']} copied, {stats['skipped']} skipped")
 
-        # Save to base model directory
-        base_dir = os.path.dirname(base_model_path)
-        os.makedirs(base_dir, exist_ok=True)
-        output_path = os.path.join(base_dir, f"{output_filename.strip()}.safetensors")
-
-        save_file(output_sd, output_path, base_metadata)
         print(f"[LoRA Merge To Model] Saved to {output_path}")
-
         return output_path
 
     finally:

nodes/merger.py

@@ -1,3 +1,4 @@
+import fnmatch
 import os
 import re
 import torch
@@ -5,9 +6,7 @@ import folder_paths
 import comfy.utils
 from tqdm import tqdm
 from comfy_api.latest import io
-from safetensors.torch import save_file
 from .merger_ops import TWO_MODEL_MODES, THREE_MODEL_MODES, MissingTensorBehavior, MissingTensorError
-from .merger_utils import parse_custom_weights, get_custom_parameters
 from .device_utils import (
     estimate_model_size, prepare_for_large_operation, cleanup_after_operation
 )
@@ -26,26 +25,38 @@ def load_documentation_from_file(filename):
         return f"# Documentation File Not Found\n\nPlease ensure `{filename}` exists in the `docs` directory of the custom node."
 
 
-def _compile_patterns(pattern_string):
-    """Compiles whitespace-separated regex patterns into a list of compiled patterns.
+def _compile_patterns(pattern_string, glob_mode=False):
+    """Compiles whitespace-separated patterns into a list.
 
-    Returns empty list if pattern_string is empty or whitespace-only.
-    Raises ValueError if any pattern is invalid regex.
+    In regex mode (default): returns compiled re.Pattern objects.
+      Raises ValueError if any pattern is invalid regex.
+    In glob mode: returns plain strings; fnmatch handles matching.
     """
     if not pattern_string or not pattern_string.strip():
         return []
 
     patterns = []
     for pattern in pattern_string.split():
-        try:
-            patterns.append(re.compile(pattern))
-        except re.error as e:
-            raise ValueError(f"Invalid regex pattern '{pattern}': {e}")
+        if not pattern:
+            continue
+        if glob_mode:
+            patterns.append(pattern)
+        else:
+            try:
+                patterns.append(re.compile(pattern))
+            except re.error as e:
+                raise ValueError(f"Invalid regex pattern '{pattern}': {e}")
     return patterns
 
 
-def _matches_any_pattern(key, patterns):
-    """Returns True if key matches any of the compiled regex patterns (substring search)."""
+def _matches_any_pattern(key, patterns, glob_mode=False):
+    """Returns True if key matches any pattern.
+
+    Glob mode: fnmatch substring match — dots are literal, * matches any sequence.
+    Regex mode: compiled re.Pattern substring search.
+    """
+    if glob_mode:
+        return any(fnmatch.fnmatch(key, f"*{p}*") for p in patterns)
     for pattern in patterns:
         if pattern.search(key):
             return True
@@ -101,11 +112,9 @@ class MergerLogic:
         alignment_mode = recipe_params.get('alignment_mode', 'pad/crop')
 
         # Compile filter patterns
-        exclude_patterns = _compile_patterns(recipe_params.get('exclude_patterns', ''))
-        discard_patterns = _compile_patterns(recipe_params.get('discard_patterns', ''))
-
-        # Parse custom per-layer weights
-        parsed_custom_weights = parse_custom_weights(recipe_params.get('custom_weights', ''))
+        glob_mode = recipe_params.get('glob_patterns', False)
+        exclude_patterns = _compile_patterns(recipe_params.get('exclude_patterns', ''), glob_mode=glob_mode)
+        discard_patterns = _compile_patterns(recipe_params.get('discard_patterns', ''), glob_mode=glob_mode)
 
         # Pre-compute key differences for logging
         primary_keys = set(all_keys)
@@ -166,7 +175,7 @@ class MergerLogic:
         with torch.no_grad():
             for key in tqdm(all_keys, desc="Merging layers", unit="layers"):
                 # Check discard patterns first - skip entirely
-                if _matches_any_pattern(key, discard_patterns):
+                if _matches_any_pattern(key, discard_patterns, glob_mode=glob_mode):
                     discarded_keys += 1
                     continue
 
@@ -179,7 +188,7 @@ class MergerLogic:
                 del cpu_tensor
 
                 # Check exclude patterns - use Model A only, no merge
-                if _matches_any_pattern(key, exclude_patterns):
+                if _matches_any_pattern(key, exclude_patterns, glob_mode=glob_mode):
                     t = tensor_a.detach().to(save_torch_dtype).cpu()
 
                     batch_buffer[key] = t
@@ -197,9 +206,7 @@ class MergerLogic:
                 recipe_params['_tensor_a_dtype'] = tensor_a.dtype
 
                 try:
-                    # Apply per-layer parameter overrides (regex/substring matching)
-                    layer_params = get_custom_parameters(key, parsed_custom_weights, recipe_params)
-                    recipe = calc_mode_class.create_recipe(key=key, **layer_params)
+                    recipe = calc_mode_class.create_recipe(key=key, **recipe_params)
                     result = recipe.merge()
                 except MissingTensorError as e:
                     if mismatch_mode == MissingTensorBehavior.ERROR:
@@ -302,14 +309,18 @@ class CheckpointTwoMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.99, min=-10.0, max=10.0, step=0.001),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_2_checkpoint"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -322,10 +333,9 @@ class CheckpointTwoMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_2_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -333,11 +343,11 @@ class CheckpointTwoMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b}
@@ -364,14 +374,18 @@ class ModelTwoMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.99, min=-10.0, max=10.0, step=0.001),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_2_model"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -384,10 +398,9 @@ class ModelTwoMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_2_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -395,11 +408,11 @@ class ModelTwoMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b}
@@ -426,14 +439,18 @@ class TextEncoderTwoMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.99, min=-10.0, max=10.0, step=0.001),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_2_textencoder"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -446,10 +463,9 @@ class TextEncoderTwoMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_2_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -457,11 +473,11 @@ class TextEncoderTwoMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b}
@@ -488,14 +504,18 @@ class LoRATwoMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.99, min=-10.0, max=10.0, step=0.001),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_2_lora"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -508,10 +528,9 @@ class LoRATwoMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_2_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -519,11 +538,11 @@ class LoRATwoMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b}
@@ -550,14 +569,18 @@ class EmbeddingTwoMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.99, min=-10.0, max=10.0, step=0.001),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_2_embedding"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -570,10 +593,9 @@ class EmbeddingTwoMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_2_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -581,11 +603,11 @@ class EmbeddingTwoMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b}
@@ -615,14 +637,18 @@ class CheckpointThreeMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.5, min=-10.0, max=10.0, step=0.01),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_3_checkpoint"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -635,10 +661,9 @@ class CheckpointThreeMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str, model_c: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_3_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -646,11 +671,11 @@ class CheckpointThreeMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "model_c": model_c, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b, "model_c": model_c}
@@ -678,14 +703,18 @@ class ModelThreeMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.5, min=-10.0, max=10.0, step=0.01),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_3_model"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -698,10 +727,9 @@ class ModelThreeMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str, model_c: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_3_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -709,11 +737,11 @@ class ModelThreeMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "model_c": model_c, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b, "model_c": model_c}
@@ -741,14 +769,18 @@ class TextEncoderThreeMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.99, min=-10.0, max=10.0, step=0.001),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_3_textencoder"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -761,10 +793,9 @@ class TextEncoderThreeMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str, model_c: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_3_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -772,11 +803,11 @@ class TextEncoderThreeMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "model_c": model_c, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b, "model_c": model_c}
@@ -804,14 +835,18 @@ class LoRAThreeMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.5, min=-10.0, max=10.0, step=0.01),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_3_lora"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -824,10 +859,9 @@ class LoRAThreeMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str, model_c: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_3_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -835,11 +869,11 @@ class LoRAThreeMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "model_c": model_c, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b, "model_c": model_c}
@@ -867,14 +901,18 @@ class EmbeddingThreeMerger(io.ComfyNode):
                 io.Float.Input("alpha", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("beta", default=0.5, min=-10.0, max=10.0, step=0.01),
                 io.Float.Input("gamma", default=0.5, min=-10.0, max=10.0, step=0.01),
-                io.Float.Input("delta", default=0.5, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("delta", default=2.0, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("epsilon", default=0.01, min=-10.0, max=10.0, step=0.01),
+                io.Float.Input("zeta", default=0.0, min=-10.0, max=10.0, step=0.01),
                 io.Int.Input("seed", default=0, min=0, max=0xffffffffffffffff),
                 io.String.Input("output_filename", default="merged_3_embedding"),
                 io.Combo.Input("save_dtype", options=["fp32", "fp16", "bf16"]),
                 io.Combo.Input("process_device", options=["cuda", "cpu"]),
                 io.String.Input("exclude_patterns", default="", multiline=True),
                 io.String.Input("discard_patterns", default="", multiline=True),
-                io.String.Input("custom_weights", default="", multiline=True, tooltip="Per-layer weights/params. Syntax: 'regex:weight' or 'regex:param=val,param2=val'"),
+                io.Boolean.Input("glob_patterns", default=False,
+                                 tooltip="When True, exclude/discard patterns use glob syntax (* = any sequence, dots are literal). "
+                                         "When False (default), patterns are Python regex matched as substrings."),
                 io.Boolean.Input("lazy_load", default=True, tooltip="Low memory mode: load tensors from disk on demand"),
                 io.Boolean.Input("force_clear_cache", default=True, tooltip="Clear CUDA cache after each layer"),
             ],
@@ -887,10 +925,9 @@ class EmbeddingThreeMerger(io.ComfyNode):
     @classmethod
     def execute(cls, execution_mode: str, model_a: str, model_b: str, model_c: str,
                 calc_mode: str, mismatch_mode: str, alignment_mode: str, alpha: float, beta: float,
-                gamma: float, delta: float, seed: int, output_filename: str, save_dtype: str,
+                gamma: float, delta: float, epsilon: float, zeta: float, seed: int, output_filename: str, save_dtype: str,
                 process_device: str, exclude_patterns: str, discard_patterns: str,
-                custom_weights: str,
-                lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
+                glob_patterns: bool, lazy_load: bool, force_clear_cache: bool) -> io.NodeOutput:
         doc = load_documentation_from_file('merger_3_model_modes.md')
         if execution_mode == "DOCUMENTATION ONLY":
             return io.NodeOutput("Documentation mode active. No merge performed.", doc)
@@ -898,11 +935,11 @@ class EmbeddingThreeMerger(io.ComfyNode):
         recipe_params = {
             "model_a": model_a, "model_b": model_b, "model_c": model_c, "calc_mode": calc_mode,
             "mismatch_mode": mismatch_mode, "alignment_mode": alignment_mode,
-            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "seed": seed,
+            "alpha": alpha, "beta": beta, "gamma": gamma, "delta": delta, "epsilon": epsilon, "zeta": zeta, "seed": seed,
             "output_filename": output_filename, "save_dtype": save_dtype,
             "device": process_device, "dtype": torch.float32,
             "exclude_patterns": exclude_patterns, "discard_patterns": discard_patterns,
-            "custom_weights": custom_weights,
+            "glob_patterns": glob_patterns,
             "lazy_load": lazy_load, "force_clear_cache": force_clear_cache,
         }
         model_names = {"model_a": model_a, "model_b": model_b, "model_c": model_c}

nodes/merger_ops.py

@@ -793,5 +793,143 @@ class DARETIESMode(CalcMode):
         return op
 
 
-TWO_MODEL_MODES = [WeightSum(), InterpDifference(), PowerUp(), DARETIESMode(), SVDMode(), ManEnhInterpDifference(), AutoEnhInterpDifference(), WeightSumCutoffMode()]
+class EnhancedPowerUpOp(Operation):
+    def __init__(self, key, alpha, beta, gamma, delta, seed, *sources):
+        super().__init__(key, *sources)
+        self.mask_power = alpha       # Mask power
+        self.min_keep_prob = beta     # Min keep prob
+        self.mask_smooth = gamma      # Smoothness (0 or 1)
+        self.delta = delta            # Final multiplier
+        self.seed = seed
+
+    def oper(self, a, b):
+        if a is None or b is None: return None
+        a, b = resize_tensors(a, b, mode=self.alignment_mode)
+        delta_val = (b - a).float()
+        abs_delta = torch.abs(delta_val)
+        max_delta = torch.max(abs_delta)
+        if max_delta == 0: return torch.zeros_like(delta_val)
+
+        prob = torch.clamp((abs_delta / max_delta) ** max(self.mask_power, 0.001), min=self.min_keep_prob, max=1.0)
+
+        rng = torch.Generator(device=a.device).manual_seed(self.seed)
+        random_mask = torch.bernoulli(prob, generator=rng)
+        interpolated_mask = torch.lerp(random_mask, prob, self.mask_smooth)
+
+        rescaled_delta = delta_val * interpolated_mask
+        return rescaled_delta
+
+
+class EnhancedDARETIESOp(Operation):
+    def __init__(self, key, alpha, beta, gamma, delta, epsilon, zeta, seed, *sources):
+        super().__init__(key, *sources)
+        self.alpha = alpha       # Unused directly for drop scale
+        self.beta = beta         # TIES trim quantile
+        self.gamma = gamma       # TIES lambda scale
+        self.mask_power = delta
+        self.min_keep_prob = epsilon
+        self.mask_smooth = zeta
+        self.seed = seed
+
+    def oper(self, a, b):
+        if a is None or b is None: return None
+        a, b = resize_tensors(a, b, mode=self.alignment_mode)
+        delta_val = (b - a).float()
+        abs_delta = torch.abs(delta_val)
+        max_delta = torch.max(abs_delta)
+
+        if max_delta > 0:
+            prob = torch.clamp((abs_delta / max_delta) ** max(self.mask_power, 0.001), min=self.min_keep_prob, max=1.0)
+
+            rng = torch.Generator(device=a.device).manual_seed(self.seed)
+            random_mask = torch.bernoulli(prob, generator=rng)
+            interpolated_mask = torch.lerp(random_mask, prob, self.mask_smooth)
+
+            delta_val = delta_val * interpolated_mask
+
+        if self.beta > 0:
+            flat_abs = delta_val.abs().flatten()
+            k = max(1, int(flat_abs.numel() * self.beta))
+            threshold = torch.kthvalue(flat_abs, k).values
+            delta_val = torch.where(delta_val.abs() < threshold, torch.zeros_like(delta_val), delta_val)
+
+        dominant_sign = torch.sign(delta_val)
+        delta_val = torch.where(torch.sign(delta_val) == dominant_sign, delta_val, torch.zeros_like(delta_val))
+
+        return (a + self.gamma * delta_val).to(a.dtype)
+
+
+class EnhancedPowerUp(CalcMode):
+    name = 'Power-Up Enhanced (DARE)'
+    description = 'Adds capabilities of B to A using Enhanced Drop and Rescale based on relative tensor differences.'
+    models_used = ['A', 'B']
+    param_docs = {
+        'alpha': 'Mask power (Curve. 2.0 = quadratic).',
+        'beta': 'Minimum keep probability (Floor to prevent explosion).',
+        'gamma': 'Mask smoothness factor (0.0 = pure dropout, 1.0 = soft scale).',
+        'delta': 'Multiplier for the final difference.',
+    }
+    def create_recipe(self, key, **kwargs):
+        mismatch_mode = kwargs.get('mismatch_mode', MissingTensorBehavior.SKIP)
+        alignment_mode = kwargs.get('alignment_mode', 'pad/crop')
+
+        if '_tensor_a' in kwargs:
+            a = PreloadedTensor(key, kwargs['_tensor_a'])
+        else:
+            loader_args_a = {"handlers": kwargs['handlers'], "device": kwargs['device'], "dtype": kwargs['dtype']}
+            a = LoadTensor(key, kwargs['model_a'], **loader_args_a)
+
+        loader_args_b = self._get_secondary_loader_args(kwargs, mismatch_mode)
+        b = LoadTensor(key, kwargs['model_b'], **loader_args_b)
+
+        deltahat = EnhancedPowerUpOp(key, kwargs['alpha'], kwargs['beta'], kwargs['gamma'], kwargs['delta'], kwargs['seed'], a, b)
+        deltahat.alignment_mode = alignment_mode
+        multiplied = Multiply(key, kwargs['delta'], deltahat)
+        res = Add(key, a, multiplied)
+        res.alignment_mode = alignment_mode
+        return res
+
+
+class EnhancedDARETIESMode(CalcMode):
+    name = 'Power-Up Enhanced (DARE+TIES)'
+    description = 'Adds capabilities of B to A using Enhanced DARE mask followed by TIES.'
+    models_used = ['A', 'B']
+    param_docs = {
+        'alpha': 'Unused (Drop scale handled via mask interpolation).',
+        'beta': 'TIES trim quantile (fraction of smallest-magnitude delta zeroed).',
+        'gamma': 'TIES Lambda scale.',
+        'delta': 'Mask power (Curve. 2.0 = quadratic).',
+        'epsilon': 'Minimum keep probability (Floor to prevent explosion).',
+        'zeta': 'Mask smoothness factor (0.0 = pure dropout, 1.0 = soft scale).',
+    }
+
+    def create_recipe(self, key, **kwargs):
+        mismatch_mode = kwargs.get('mismatch_mode', MissingTensorBehavior.SKIP)
+        alignment_mode = kwargs.get('alignment_mode', 'pad/crop')
+
+        if '_tensor_a' in kwargs:
+            a = PreloadedTensor(key, kwargs['_tensor_a'])
+        else:
+            loader_args_a = {"handlers": kwargs['handlers'], "device": kwargs['device'], "dtype": kwargs['dtype']}
+            a = LoadTensor(key, kwargs['model_a'], **loader_args_a)
+
+        loader_args_b = self._get_secondary_loader_args(kwargs, mismatch_mode)
+        b = LoadTensor(key, kwargs['model_b'], **loader_args_b)
+
+        op = EnhancedDARETIESOp(
+            key,
+            kwargs.get('alpha', 0.5),
+            kwargs.get('beta', 0.2),
+            kwargs.get('gamma', 1.0),
+            kwargs.get('delta', 0.5),
+            kwargs.get('epsilon', 0.5),
+            kwargs.get('zeta', 0.5),
+            kwargs['seed'],
+            a, b,
+        )
+        op.alignment_mode = alignment_mode
+        return op
+
+
+TWO_MODEL_MODES = [WeightSum(), InterpDifference(), PowerUp(), DARETIESMode(), SVDMode(), ManEnhInterpDifference(), AutoEnhInterpDifference(), WeightSumCutoffMode(), EnhancedPowerUp(), EnhancedDARETIESMode()]
 THREE_MODEL_MODES = [AddDifference(), TrainDifference(), Extract(), AddDisimilarity()]

nodes/merger_utils.py

@@ -1,8 +1,7 @@
 """
 Utilities for model merging operations.
 """
-from typing import Dict, List, Tuple, Any
-import re
+from typing import Dict, List
 
 def get_union_keys(*handlers) -> List[str]:
     """Returns the union of all tensor keys across multiple model handlers."""
@@ -22,84 +21,3 @@ def get_intersection_keys(*handlers) -> List[str]:
     for handler in handlers[1:]:
         all_keys &= set(handler.keys())
     return sorted(all_keys)
-
-
-def parse_custom_weights(custom_weights_str: str) -> List[Tuple[re.Pattern, Dict[str, float]]]:
-    """Parses multiline string of custom weights.
-    Format: pattern:weight OR pattern:param=value,param2=value
-    Returns list of (compiled_regex, parameter_dict).
-    """
-    if not custom_weights_str or not custom_weights_str.strip():
-        return []
-
-    results = []
-    lines = custom_weights_str.strip().split('\n')
-    for line in lines:
-        line = line.strip()
-        if not line or line.startswith('#'):
-            continue
-
-        if ':' not in line:
-            continue
-
-        pattern_str, weight_str = line.rsplit(':', 1)
-        pattern_str = pattern_str.strip()
-        weight_str = weight_str.strip()
-
-        try:
-            pattern = re.compile(pattern_str)
-        except re.error:
-            # Fallback to literal substring if regex invalid
-            pattern = re.compile(re.escape(pattern_str))
-
-        params = {}
-        if '=' in weight_str:
-            # param=value,param2=value
-            parts = weight_str.split(',')
-            for part in parts:
-                if '=' in part:
-                    k, v = part.split('=', 1)
-                    k = k.strip()
-                    # Map common aliases
-                    if k in ['a', 'alpha']: k = 'alpha'
-                    elif k in ['b', 'beta']: k = 'beta'
-                    elif k in ['g', 'gamma']: k = 'gamma'
-                    elif k in ['d', 'delta']: k = 'delta'
-                    elif k in ['w', 'weight']: k = 'weight'
-                    elif re.match(r'^w[1-8]$', k): pass # Keep w1-w8 as is
-
-                    try:
-                        params[k] = float(v.strip())
-                    except ValueError:
-                        pass
-        else:
-            # single float or comma-separated list of floats (for multi-LoRA)
-            if ',' in weight_str:
-                parts = weight_str.split(',')
-                for i, p in enumerate(parts):
-                    try:
-                        params[f'w{i+1}'] = float(p.strip())
-                    except ValueError:
-                        pass
-            else:
-                try:
-                    val = float(weight_str)
-                    params['alpha'] = val # default for merger
-                    params['weight'] = val # default for lora_merger
-                except ValueError:
-                    pass
-
-        if params:
-            results.append((pattern, params))
-
-    return results
-
-
-def get_custom_parameters(key: str, parsed_weights: List[Tuple[re.Pattern, Dict[str, float]]], base_params: Dict[str, Any]) -> Dict[str, Any]:
-    """Returns updated parameters if key matches any pattern."""
-    new_params = base_params.copy()
-    for pattern, custom_dict in parsed_weights:
-        if pattern.search(key):
-            new_params.update(custom_dict)
-            break # First match wins
-    return new_params

nodes/prunekeys.py

@@ -4,12 +4,11 @@ import folder_paths
 import comfy.utils
 from tqdm import tqdm
 from comfy_api.latest import io
-from safetensors.torch import save_file
 from safetensors import safe_open
 from .utils import convert_pt_to_safetensors
 from .device_utils import estimate_model_size, prepare_for_large_operation, cleanup_after_operation
 
-from unifiedefficientloader import MemoryEfficientSafeOpen
+from unifiedefficientloader import MemoryEfficientSafeOpen, IncrementalSafetensorsWriter
 
 
 def _prune_keys(model_name: str, model_type: str, keys_to_prune_str: str,
@@ -40,32 +39,33 @@ def _prune_keys(model_name: str, model_type: str, keys_to_prune_str: str,
     if not patterns:
         raise ValueError("No keys/patterns provided to prune.")
 
-    # Stream tensors and filter on the fly
-    pruned_tensors = {}
-    with MemoryEfficientSafeOpen(model_path_to_load) as handler:
-        all_keys = handler.keys()
-        pbar = comfy.utils.ProgressBar(len(all_keys))
-        for key in tqdm(all_keys, desc="Pruning keys", unit="keys"):
-            is_match = False
-            if use_regex:
-                if any(re.search(pattern, key) for pattern in patterns):
-                    is_match = True
-            else:
-                if any(pattern in key for pattern in patterns):
-                    is_match = True
-
-            if not is_match:
-                pruned_tensors[key] = handler.get_tensor(key)
-            pbar.update(1)
-
     # Use [-1] for diffusion_models to get the actual diffusion_models folder, not legacy unet
     model_dir = folder_paths.get_folder_paths(model_type)[-1]
     output_path = os.path.join(model_dir, f"{output_filename.strip()}.safetensors")
 
-    save_file(pruned_tensors, output_path, metadata)
+    # Stream tensors, filter on the fly, write immediately
+    writer = IncrementalSafetensorsWriter(output_path, metadata=metadata)
+    writer.__enter__()
+    try:
+        with MemoryEfficientSafeOpen(model_path_to_load) as handler:
+            all_keys = handler.keys()
+            pbar = comfy.utils.ProgressBar(len(all_keys))
+            for key in tqdm(all_keys, desc="Pruning keys", unit="keys"):
+                is_match = False
+                if use_regex:
+                    if any(re.search(pattern, key) for pattern in patterns):
+                        is_match = True
+                else:
+                    if any(pattern in key for pattern in patterns):
+                        is_match = True
+
+                if not is_match:
+                    writer.write(key, handler.get_tensor(key).contiguous())
+                pbar.update(1)
+    finally:
+        writer.__exit__(None, None, None)
 
     # Cleanup after operation
-    del pruned_tensors
     cleanup_after_operation()
 
     return output_path

nodes/renamekeys.py

@@ -3,12 +3,11 @@ import folder_paths
 import comfy.utils
 from tqdm import tqdm
 from comfy_api.latest import io
-from safetensors.torch import save_file
 from safetensors import safe_open
 from .utils import convert_pt_to_safetensors
 from .device_utils import estimate_model_size, prepare_for_large_operation, cleanup_after_operation
 
-from unifiedefficientloader import MemoryEfficientSafeOpen
+from unifiedefficientloader import MemoryEfficientSafeOpen, IncrementalSafetensorsWriter
 
 
 
@@ -43,24 +42,25 @@ def _rename_keys(model_name: str, model_type: str, old_keys_str: str,
 
     key_map = dict(zip(old_keys, new_keys))
 
-    # Stream tensors and rename on the fly
-    renamed_tensors = {}
-    with MemoryEfficientSafeOpen(model_path_to_load) as handler:
-        original_keys = handler.keys()
-        pbar = comfy.utils.ProgressBar(len(original_keys))
-        for key in tqdm(original_keys, desc="Renaming keys", unit="keys"):
-            new_key = key_map.get(key, key)
-            renamed_tensors[new_key] = handler.get_tensor(key)
-            pbar.update(1)
-
     # Use [-1] for diffusion_models to get the actual diffusion_models folder, not legacy unet
     model_dir = folder_paths.get_folder_paths(model_type)[-1]
     output_path = os.path.join(model_dir, f"{output_filename.strip()}.safetensors")
 
-    save_file(renamed_tensors, output_path, metadata)
+    # Stream tensors, rename on the fly, write immediately
+    writer = IncrementalSafetensorsWriter(output_path, metadata=metadata)
+    writer.__enter__()
+    try:
+        with MemoryEfficientSafeOpen(model_path_to_load) as handler:
+            original_keys = handler.keys()
+            pbar = comfy.utils.ProgressBar(len(original_keys))
+            for key in tqdm(original_keys, desc="Renaming keys", unit="keys"):
+                new_key = key_map.get(key, key)
+                writer.write(new_key, handler.get_tensor(key).contiguous())
+                pbar.update(1)
+    finally:
+        writer.__exit__(None, None, None)
 
     # Cleanup after operation
-    del renamed_tensors
     cleanup_after_operation()
 
     return output_path

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "ComfyUI-ModelUtils"
 description = "[WIP]Custom nodes for handling, inspecting, modifying and creating various model files."
-version = "0.3.5"
+version = "0.4.1"
 license = { file = "LICENSE" }
 
 classifiers = [

requirements.txt

@@ -1,5 +1,5 @@
 requests
 Pillow
 mutagen
-unifiedefficientloader==0.4.4
+unifiedefficientloader>=0.5.1
 av