Raise model size limit

backend/app/services/models.py

@@ -469,8 +469,8 @@ class ModelService(HuggingFaceService):
         logger.info(LogFormatter.success(f"Model size validation passed: {model_size:.1f}B"))
 
         # Size limits based on precision
-        if model_data["precision"] in ["float16", "bfloat16"] and model_size > 100:
-            error_msg = f"Model too large for {model_data['precision']} (limit: 100B)"
+        if model_data["precision"] in ["float16", "bfloat16"] and model_size > 500:
+            error_msg = f"Model too large for {model_data['precision']} (limit: 500B)"
             logger.error(LogFormatter.error("Size limit exceeded", error_msg))
             raise Exception(error_msg)