Vertex AI API Error Code 13 (INTERNAL) occurs due to server-side issues, malformed requests, or quota limits.
Here is the code snippet you can refer to:

In the above code we are using the following points:
- Retries on API Error 13: Implements automatic retry if an internal error occurs.
- Ensures Input is Properly Formatted: Uses aiplatform.GenerativeModel for structured API calls.
- Handles Unexpected Errors: Prints meaningful logs for debugging.
- Avoids Overloading API: Adds time.sleep(5) to prevent excessive rapid retries.
Hence, Vertex AI API Error Code 13 typically results from server-side failures, malformed requests, or quota issues, and can be resolved through request validation, retries, and quota management.