Ah, I wasn't aware things regressed there. Yea certainly workarounds n soft fork sorts of things definitely would work- but thats a bummer than things have changed.

From watching Pr's and issues- seems like openai at least wants to come across as if theyre supporting non-oai models :/

Yeah... one of the relevant issues: https://github.com/openai/codex/issues/11940#issuecomment-45...

You would think they would support their own GPT-OSS model, but, not really anymore. I wish they would release a GPT-OSS 2, but this doesn't fill me with confidence.