From d1d9eb94b1096c9b3f963bf152bd6b9cd330c3a4 Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Sat, 20 Sep 2025 19:09:35 -0700
Subject: [PATCH] Lower wan memory estimation value a bit. (#9964)

Previous pr reduced the peak memory requirement.
---
 comfy/supported_models.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/comfy/supported_models.py b/comfy/supported_models.py
index 1fbb6aef4..4064bdae1 100644
--- a/comfy/supported_models.py
+++ b/comfy/supported_models.py
@@ -995,7 +995,7 @@ class WAN21_T2V(supported_models_base.BASE):
     unet_extra_config = {}
     latent_format = latent_formats.Wan21
 
-    memory_usage_factor = 1.0
+    memory_usage_factor = 0.9
 
     supported_inference_dtypes = [torch.float16, torch.bfloat16, torch.float32]
 
@@ -1004,7 +1004,7 @@ class WAN21_T2V(supported_models_base.BASE):
 
     def __init__(self, unet_config):
         super().__init__(unet_config)
-        self.memory_usage_factor = self.unet_config.get("dim", 2000) / 2000
+        self.memory_usage_factor = self.unet_config.get("dim", 2000) / 2222
 
     def get_model(self, state_dict, prefix="", device=None):
         out = model_base.WAN21(self, device=device)