Oh, OpenAI finally added it? Structured generation has been available in things like llama.cpp and Instructor for a while, so I was wondering if they were going

Oh, OpenAI finally added it? Structured generation has been available in things like llama.cpp and Instructor for a while, so I was wondering if they were going to get around to adding it. In the examples I've seen, it's not something you can define an entire world model in, but you can sure constrain the immediate action space so the model does something sensible.