Update app.py

app.py

@@ -237,7 +237,7 @@ def create_agent():
         # Initialize model
         model = LiteLLMModel(
             custom_role_conversions=CUSTOM_ROLE_CONVERSIONS,
-            model_id="openrouter/deepseek/deepseek-chat-v3-0324:free",
+            model_id="openrouter/google/gemini-2.0-flash-001",
         )
 
         # Initialize tools