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Mistral API error

Mistral API 503 Service unavailable: what it means and how to fix it

Error message
503 Service unavailable

Retry? YesLast verified 1 documented fix1 source

What it means

The service is temporarily overloaded or under maintenance.

Causes

  • Temporary overload
  • Maintenance

How to fix it

  1. Fix 1.

    Retry with exponential backoff and check the Mistral status page for ongoing incidents.

More Mistral API errors

All 11 Mistral API errors

HTTP 503 at other providers

Compare 503 across providers

FAQ

What does the Mistral API error "503 Service unavailable" mean?

The service is temporarily overloaded or under maintenance.

How do I fix Mistral API "503 Service unavailable"?

Retry with exponential backoff and check the Mistral status page for ongoing incidents.

Should I retry Mistral API "503 Service unavailable"?

Yes. The official docs treat this error as retryable.

Which other AI APIs return HTTP 503?

Per their official error docs: Amazon Bedrock (503 ServiceUnavailableException), Azure OpenAI (503 Server Error), DeepSeek API (503 - Server Overloaded), Gemini API (503 service_unavailable; 503 UNAVAILABLE), Groq API (503 Service Unavailable), OpenAI API (503 service_unavailable_error server_is_overloaded), OpenRouter (503 No available model provider meets your routing requirements; 503 provider_overloaded), Vertex AI (503 UNAVAILABLE).

Sources

Last verified against 1 source: Mistral API's official docs and official SDK repositories.

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