OpenAI API returned TooManyRequests. Please try again

You also have rate limits on the OpenAI API, which is based on a “tier” system of account age plus amount paid.

Free testing use, which some may have when creating new accounts and using nano models, is extremely limited, at 3 requests-per-minute.

After purchasing prepaid credits, that RPM will increase, but per-model token pools are still quite low per model, to where you can have a single call fail merely on a large input.

Review the entry documentation and your own organization’s limits in the platform site to understand.

developers.openai.com

Rate limits | OpenAI API

Rate limits are restrictions that our API imposes on the number of times a user or client can access our services within a specified period of time.

You will likely want a better diagnosis - the API doesn’t return that particular message, so likely something else in your software stack or the service you are employing to make API calls is re-writing the 429 error or its http body.