When using DeepSeek, it passed the test in configuration menu, but the API returned 400 error with content {"error":{"message":"This response_format type is unavailable now","type":"invalid_request_error","param":null,"code":"invalid_request_error"}}

You need a model that supports structured outputs.

It is compatible with OpenAI API, is this not enough? And, according to the document , it is confirmed that supports JSON object output. I never ever touched Ruby so I can’t know how Discourse treat response_format field. Btw, I tried compatible Authropic API provided by DeepSeek, still unavailable. …

[image] MoRanYue: It is compatible with OpenAI API, is this not enough? And, according to the document , it is confirmed that supports JSON object output. I never ever touched Ruby so I can’t know how Discourse treat response_format field. That’s “JSON mode” which is a deprecated old version o…

Dealing with DeepSeek JSON Response Format Issues

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Falco (Falco) October 3, 2025, 1:51pm 4

That’s “JSON mode” which is a deprecated old version of structured outputs in the OpenAI API.

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Dealing with DeepSeek JSON Response Format Issues

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