From 1ac78180b3f797f09f5805e5a923debe77638889 Mon Sep 17 00:00:00 2001
From: rattus <46076784+rattus128@users.noreply.github.com>
Date: Tue, 5 May 2026 05:58:06 +1000
Subject: [PATCH] make control-net load order deterministic (#13701)

Make this deterministic so speeds dont change base of load order. Load
them in reverse order so whatever the caller lists first is the top
priority.
---
 comfy/model_management.py | 10 ++++++----
 comfy/sampler_helpers.py  |  3 ++-
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/comfy/model_management.py b/comfy/model_management.py
index 02ad66656..21738a4c7 100644
--- a/comfy/model_management.py
+++ b/comfy/model_management.py
@@ -721,13 +721,15 @@ def load_models_gpu(models, memory_required=0, force_patch_weights=False, minimu
     else:
         minimum_memory_required = max(inference_memory, minimum_memory_required + extra_reserved_memory())
 
-    models_temp = set()
+    # Order-preserving dedup. A plain set() would randomize iteration order across runs
+    models_temp = {}
     for m in models:
-        models_temp.add(m)
+        models_temp[m] = None
         for mm in m.model_patches_models():
-            models_temp.add(mm)
+            models_temp[mm] = None
 
-    models = models_temp
+    models = list(models_temp)
+    models.reverse()
 
     models_to_load = []
 
diff --git a/comfy/sampler_helpers.py b/comfy/sampler_helpers.py
index bbba09e26..3782fd2d5 100644
--- a/comfy/sampler_helpers.py
+++ b/comfy/sampler_helpers.py
@@ -89,7 +89,8 @@ def get_additional_models(conds, dtype):
         gligen += get_models_from_cond(conds[k], "gligen")
         add_models += get_models_from_cond(conds[k], "additional_models")
 
-    control_nets = set(cnets)
+    # Order-preserving dedup. A plain set() would randomize iteration order across runs
+    control_nets = list(dict.fromkeys(cnets))
 
     inference_memory = 0
     control_models = []