Can I use JSON mode and seeds with assistants?

I want to have my assistant output in JSON so I can parse the output and render locally. Of course there is the old system message way of doing this, but how can I do this in assistant mode?

It seems like assistant API is just a way to streamline a conversation as opposed to using the generic chat API, so I’d expect similar controls to tweak the model used by assistant.


would like to know if this is possible as well, did you find a solution?