Update app.py

app.py

@@ -33,7 +33,7 @@ class BasicAgent:
     def __init__(self):
         print("BasicAgent initialized.")
         
-        chat = init_chat_model(model="gpt-4o", temperature=0)
+        chat = init_chat_model(model="gpt-4", temperature=0)
 
         # Set up tools
         search_tool = DuckDuckGoSearchRun()