Invalid upstream response

Retrying the identical request is safe and often the fix.

Code: upstream_response_invalid
HTTP: 503
Retry: Safe to retry

The message

error.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

Example values.

The fix

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

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