diff --git a/README.md b/README.md
index 4f92045..d005977 100644
--- a/README.md
+++ b/README.md
@@ -113,6 +113,26 @@ The node now supports NAI's V4 architecture through the nai-diffusion-4-curated-
   - Vibe transfer is not yet supported with V4 preview (will be available with full V4 release)
   - Full V4 feature support will come with the official V4 release
 
+
+### V4.5 Support (Curated Preview)
+
+Support has been added for **NAI Diffusion 4.5 Curated Preview**, an updated version of V4 with further improvements in detail, contrast, and prompt responsiveness.
+
+- **Model Name:**  
+  ```python
+  model = "nai-diffusion-4-5-curated-preview"
+  ```
+
+- **Availability:**  
+  Selectable through `ModelOptionNAID` node under the name **NAI Diffusion 4.5 Curated Preview**.
+
+- **Compatibility Notes:**
+  - Works the same as V4 preview, with the same limitations:
+    - Inpainting will still default to V3 backend
+    - Vibe transfer is not yet supported
+  - Prompt formatting remains the same as for V4 (`V4BasePrompt` and `V4NegativePrompt` nodes are compatible)
+
+
 #### New Model Option
 
 NAI Diffusion V4 Curated Preview is now available in the ModelOptionNAID node:
diff --git a/nodes.py b/nodes.py
index 6d91bd0..da2b47d 100644
--- a/nodes.py
+++ b/nodes.py
@@ -40,7 +40,7 @@ class ModelOption:
     def INPUT_TYPES(s):
         return {
             "required": {
-                "model": (["nai-diffusion-2", "nai-diffusion-furry-3", "nai-diffusion-3", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full"], { "default": "nai-diffusion-4-full" }),
+                "model": (["nai-diffusion-2", "nai-diffusion-furry-3", "nai-diffusion-3", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full", "nai-diffusion-4-5-curated"], { "default": "nai-diffusion-4-5-curated" }),
             },
             "optional": { "option": ("NAID_OPTION",) },
         }
@@ -256,7 +256,7 @@ class GenerateNAID:
         retry = option["retry"] if option and "retry" in option else None
 
         if limit_opus_free:
-            pixel_limit = 1024*1024 if model in ("nai-diffusion-2", "nai-diffusion-furry-3", "nai-diffusion-3", "nai-diffusion-4", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full") else 640*640
+            pixel_limit = 1024*1024 if model in ("nai-diffusion-2", "nai-diffusion-furry-3", "nai-diffusion-3", "nai-diffusion-4", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full", "nai-diffusion-4-5-curated") else 640*640
             if width * height > pixel_limit:
                 max_width, max_height = calculate_resolution(pixel_limit, (width, height))
                 params["width"] = max_width
@@ -267,10 +267,10 @@ class GenerateNAID:
         if variety:
             params["skip_cfg_above_sigma"] = calculate_skip_cfg_above_sigma(params["width"], params["height"])
 
-        if sampler == "ddim" and model in ("nai-diffusion-furry-3", "nai-diffusion-3", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full"):
+        if sampler == "ddim" and model in ("nai-diffusion-furry-3", "nai-diffusion-3", "nai-diffusion-4-curated-preview", "nai-diffusion-4-full", "nai-diffusion-4-5-curated"):
             params["sampler"] = "ddim_v3"
 
-        if action == "infill" and model != "nai-diffusion-2":
+        if action == "infill" and model != "nai-diffusion-4-5-curated":
             model = f"{model}-inpainting"
 
         image = blank_image()