Invalid upstream response

HTTP 503 · retrying the identical request is safe and often the fix.

The message

The provider answered for 'deepseek/deepseek-v4-flash-0731' with a response MiniRouter could not validate (responses_invalid_response_status), so it was not returned. Try again shortly; nothing beyond the provider's own usage is charged. Status: https://minirouter.sh/status

Values are examples; the live message carries your request’s real figures.

The fix

Retry, or choose another model. If it repeats, contact support with the request ID; the reason names the failed check.

Full catalog: /docs/errors#upstream_response_invalid