diff --git a/comfy/model_management.py b/comfy/model_management.py
index 79f043419..30a509670 100644
--- a/comfy/model_management.py
+++ b/comfy/model_management.py
@@ -516,9 +516,17 @@ class LoadedModel:
         logging.info(f"offload_device: {self.model.offload_device}")
         available_memory = get_free_memory(self.model.offload_device)
         logging.info(f"before unload, available_memory of offload device {self.model.offload_device}: {available_memory/(1024*1024*1024)} GB")
-        if available_memory < memory_to_free:
-            logging.error(f"Not enough cpu memory to unload. Available: {available_memory/(1024*1024*1024)} GB, Required: {memory_to_free/(1024*1024*1024)} GB")
+        reserved_memory = 1024*1024*1024  # 1GB reserved memory for other usage
+        if available_memory < reserved_memory:
+            logging.error(f"Not enough cpu memory to unload. Available: {available_memory/(1024*1024*1024)} GB, Reserved: {reserved_memory/(1024*1024*1024)} GB")
             return False
+        else:
+            offload_memory = available_memory - reserved_memory
+            
+        if offload_memory < memory_to_free:
+            memory_to_free = offload_memory
+            logging.info(f"Not enough cpu memory to unload. Available: {available_memory/(1024*1024*1024)} GB, Reserved: {reserved_memory/(1024*1024*1024)} GB, Offload: {offload_memory/(1024*1024*1024)} GB")
+            logging.info(f"Set memory_to_free to {memory_to_free/(1024*1024*1024)} GB")
         try:
             if memory_to_free is not None:
                 if memory_to_free < self.model.loaded_size():