Errors
Bifrost returns structured error responses.
Error format
Error types
| Type | Description | Retryable |
|---|---|---|
| authentication_error | Invalid or missing API key | No |
| invalid_request_error | Malformed request body | No |
| model_not_found | Requested model does not exist | No |
| provider_error | Provider returned an error | Yes |
| rate_limit | Provider rate limit exceeded | Yes |
| routing_error | No eligible model found | No |
| internal_error | Bifrost internal error | Yes |