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Always set diffusion model to eval() mode. #10331

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Merged
merged 1 commit into from
Oct 13, 2025
Merged

Always set diffusion model to eval() mode. #10331

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3 changes: 1 addition & 2 deletions comfy/model_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,7 @@ def __init__(self, model_config, model_type=ModelType.EPS, device=None, unet_mod
else:
operations = model_config.custom_operations
self.diffusion_model = unet_model(**unet_config, device=device, operations=operations)
self.diffusion_model.eval()
if comfy.model_management.force_channels_last():
self.diffusion_model.to(memory_format=torch.channels_last)
logging.debug("using channels last mode for diffusion model")
Expand Down Expand Up @@ -669,7 +670,6 @@ def __init__(self, model_config, model_type=ModelType.IMG_TO_IMG, device=None):
class StableCascade_C(BaseModel):
def __init__(self, model_config, model_type=ModelType.STABLE_CASCADE, device=None):
super().__init__(model_config, model_type, device=device, unet_model=StageC)
self.diffusion_model.eval().requires_grad_(False)

def extra_conds(self, **kwargs):
out = {}
Expand Down Expand Up @@ -698,7 +698,6 @@ def extra_conds(self, **kwargs):
class StableCascade_B(BaseModel):
def __init__(self, model_config, model_type=ModelType.STABLE_CASCADE, device=None):
super().__init__(model_config, model_type, device=device, unet_model=StageB)
self.diffusion_model.eval().requires_grad_(False)

def extra_conds(self, **kwargs):
out = {}
Expand Down