Update app.py (#19)

- Update app.py (23473ecf1b4188373846ce8b1d031f21564bcf48)

app.py

@@ -30,7 +30,7 @@ class BasicAgent:
            # custom_role_conversions=None,
         #)
 
-        model = InferenceClientModel(model_id="Qwen/Qwen2.5-Coder-0.5B-Instruct",
+        model = InferenceClientModel(model_id="Qwen/Qwen2.5-Coder-1.5B-Instruct",
                                      max_tokens=2096,
                                      token=token,
                                      custom_role_conversions=None)