diff --git a/comfy/supported_models_base.py b/comfy/supported_models_base.py
index 68e89551..e2b70e69 100644
--- a/comfy/supported_models_base.py
+++ b/comfy/supported_models_base.py
@@ -72,6 +72,7 @@ class BASE:
         self.unet_config = unet_config.copy()
         self.sampling_settings = self.sampling_settings.copy()
         self.latent_format = self.latent_format()
+        self.optimizations = self.optimizations.copy()
         for x in self.unet_extra_config:
             self.unet_config[x] = self.unet_extra_config[x]