Update app.py

app.py

@@ -204,7 +204,7 @@ class BasicAgent:
         hf_messages = self._messages_to_hf_format([sys_msg] + state["messages"])
  
         response = self.client.chat_completion(
-            model="Qwen/Qwen2.5-72B-Instruct", 
+            model="Qwen/Qwen2.5-7B-Instruct",            
             messages=hf_messages,
             tools=self.tools_schema,
             tool_choice="auto",