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DeepSeek API error

DeepSeek API 400 - Invalid Format: what it means and how to fix it

Error message
400 - Invalid Format

Retry? Not statedLast verified 1 documented fix1 source

What it means

The request body format is invalid.

Causes

  • Invalid request body format

How to fix it

  1. Fix 1.

    Modify your request body according to the hints in the error message; see the DeepSeek API Docs for format details.

More DeepSeek API errors

HTTP 400 at other providers

Compare 400 across providers

FAQ

What does the DeepSeek API error "400 - Invalid Format" mean?

The request body format is invalid.

How do I fix DeepSeek API "400 - Invalid Format"?

Modify your request body according to the hints in the error message; see the DeepSeek API Docs for format details.

Should I retry DeepSeek API "400 - Invalid Format"?

Not stated. The official docs do not say whether this error is retryable.

Which other AI APIs return HTTP 400?

Per their official error docs: Amazon Bedrock (400 ValidationException; 400 ServiceQuotaExceededException; 400 IncompleteSignature; 400 InvalidAction; 400 NotAuthorized; 400 RequestExpired), Anthropic API (400 invalid_request_error; 400 invalid_request_error (spend limit reached)), Azure OpenAI (400 Bad Request; 400 content_filter), Cohere API (400 Bad Request; 400 Bad Request (too many tokens)), Gemini API (400 invalid_request; 400 failed_precondition; 400 parameter_unknown; 400 INVALID_ARGUMENT; 400 FAILED_PRECONDITION), Groq API (400 Bad Request), Mistral API (400 Bad request), OpenAI API (400 invalid_request_error (Invalid service_tier argument); 400 BadRequestError), OpenRouter (400 invalid_request; 400 invalid_prompt; 400 context_length_exceeded; 400 max_tokens_exceeded; 400 token_limit_exceeded; 400 string_too_long; 400 invalid_image; 400 image_too_large; 400 image_too_small; 400 unsupported_image_format; 400 image_download_failed), Vertex AI (400 INVALID_ARGUMENT / FAILED_PRECONDITION), xAI API (400 Bad Request).

Sources

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

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