o1-mini and o1 is not supported yet?

[mutonby]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

api-1 | Error during streaming: BadRequestError: 400 Unsupported value: 'messages[0].role' does not support 'developer' with this model.

Error Message and Stack Trace (if applicable)

No response

Description

api-1 | Error during streaming: BadRequestError: 400 Unsupported value: 'messages[0].role' does not support 'developer' with this model.

System Info

nodejs

[gongzhang]

Same issue here. The developer role does not work. Seams a bug on the OpenAI side.

https://platform.openai.com/docs/guides/reasoning#advice-on-prompting

Starting with o1-2024-12-17, o1 models support developer messages rather than system messages, to align with the chain of command behavior described in the model spec.