OpenAI API error
OpenAI API 422 UnprocessableEntityError: what it means and how to fix it
422 UnprocessableEntityErrorRetry? YesLast verified 1 documented fix2 sources
What it means
Python library error for 422 responses: the request could not be processed despite the format being correct.
Causes
- Request is well formed but could not be processed
How to fix it
- Fix 1.
Try the request again.
More OpenAI API errors
All 23 OpenAI API errors400 invalid_request_error (Invalid service_tier argument)Retry? Not stated401 Invalid AuthenticationRetry? Not stated401 Incorrect API key providedRetry? Not stated401 You must be a member of an organization to use the APIRetry? Not stated401 IP not authorizedRetry? Not stated403 Country, region, or territory not supportedRetry? Not stated429 credit_balance_exhaustedRetry? No429 Rate limit reached for requestsRetry? Yes
HTTP 422 at other providers
Compare 422 across providersFAQ
What does the OpenAI API error "422 UnprocessableEntityError" mean?
Python library error for 422 responses: the request could not be processed despite the format being correct.
How do I fix OpenAI API "422 UnprocessableEntityError"?
Try the request again.
Should I retry OpenAI API "422 UnprocessableEntityError"?
Yes. The official docs treat this error as retryable.
Which other AI APIs return HTTP 422?
Per their official error docs: DeepSeek API (422 - Invalid Parameters), Groq API (422 Unprocessable Entity), Mistral API (422 Validation error), OpenRouter (422 unprocessable), xAI API (422 Unprocessable Entity).
Sources
Last verified against 2 sources: OpenAI API's official docs and official SDK repositories.
- developers.openai.comhttps://developers.openai.com/api/docs/guides/error-codes
- github.comhttps://github.com/openai/openai-python/blob/main/README.md
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