diff --git a/nodes.py b/nodes.py
index 78b3fdc..91e84b6 100644
--- a/nodes.py
+++ b/nodes.py
@@ -25,6 +25,11 @@ MODEL_LATENT_SPEC = {
 }
 DEFAULT_LATENT_SPEC = (4, 8)
 
+# Unique models in presets.py order (most relevant first, per its own convention) — both
+# nodes default to whichever model is listed first there, so adding a new architecture at
+# the top of presets.py automatically becomes the new default without touching this file.
+MODELS = list(dict.fromkeys(model for model, _, _, _ in PRESETS))
+
 ASPECT_RATIOS = [
     ("1:1 Square",      (1, 1)),
     ("3:2 Landscape",   (3, 2)),
@@ -63,10 +68,10 @@ class EmptyLatentAspectPreset:
         f"{w}x{h} - {lbl} - {model}": (w, h)
         for model, lbl, w, h in PRESETS
     }
-    # Unique models in first-appearance order; the "model" widget is purely a
-    # client-side filter (see web/aspect_ratio_filter.js) for the "preset" dropdown,
-    # which already encodes the model in its label — parsed there, not duplicated.
-    MODELS = list(dict.fromkeys(model for model, _, _, _ in PRESETS))
+    # The "model" widget is purely a client-side filter (see web/aspect_ratio_filter.js)
+    # for the "preset" dropdown, which already encodes the model in its label — parsed
+    # there, not duplicated.
+    MODELS = MODELS
 
     @classmethod
     def INPUT_TYPES(cls):
@@ -101,17 +106,17 @@ class EmptyLatentAspectByAxis:
     ASPECT_CHOICES = ASPECT_RATIOS
     REFERENCE_CHOICES = ["Width", "Height"]
     RATIO_MAP = dict(ASPECT_CHOICES)
-    MODELS = list(MODEL_LATENT_SPEC.keys())
+    MODELS = MODELS
 
     @classmethod
     def INPUT_TYPES(cls):
         return {
             "required": {
-                "model":        (cls.MODELS,),
                 "primary_dim":  ("INT", {"default": 512, "min": 8}),
                 "reference":    (cls.REFERENCE_CHOICES,),
                 "aspect_ratio": ([lbl for lbl, _ in cls.ASPECT_CHOICES],),
                 "batch_size":   ("INT", {"default": 1, "min": 1}),
+                "model":        (cls.MODELS,),
             }
         }
 
@@ -120,7 +125,7 @@ class EmptyLatentAspectByAxis:
     FUNCTION = "generate"
     CATEGORY = "latent"
 
-    def generate(self, model: str, primary_dim: int, reference: str, aspect_ratio: str, batch_size: int):
+    def generate(self, primary_dim: int, reference: str, aspect_ratio: str, batch_size: int, model: str):
         if aspect_ratio not in self.RATIO_MAP:
             raise ValueError(f"Unknown aspect ratio: {aspect_ratio}")
         wr, hr = self.RATIO_MAP[aspect_ratio]