It's not just that. Following instructions, text generation, etc. all seem to be worse with the api version. At least, when it comes to 3.5 - 4o is much better.

It's not just that. Following instructions, text generation, etc. all seem to be worse with the api version. At least, when it comes to 3.5 - 4o is much better. Ironically, 4o had problems with correct json output where 3.5 hadn't. It produced ```json {...}``` instead of just the json object.