Update app.py

app.py

@@ -32,7 +32,7 @@ GITHUB_ENDPOINT = "https://models.github.ai/inference"
 # Check GitHub Models documentation for available models. 'gpt-4.1' might not be the correct identifier.
 # Let's assume a common format like 'openai/gpt-4o' or similar, adjust as needed.
 # Using 'openai/gpt-4.1' as a placeholder based on your original code, VERIFY THIS with GitHub Models docs.
-MODEL_ID = os.getenv("MODEL_ID", "openai/gpt-4.1") # Renamed for clarity, adjust if needed
+MODEL_ID = os.getenv("MODEL_ID", "openai/gpt-4o-mini") # Renamed for clarity, adjust if needed
 
 # --- Configure OpenAI SDK (for tools if needed, now using GitHub endpoint) ---
 # This client might be used by tools OR potentially by OpenAIServerModel internally