OpenAI has announced they will be winding down fine tuning. I got the email today. Existing active
@OpenAI customers can keep running fine-tuning jobs until January 6, 2027, but after that no new training jobs can be created. Existing fine-tuned models will still run, but only until the underlying base model is eventually deprecated.
I get the argument that newer models follow instructions much better, and that prompts plus RAG cover more use cases than before. But not all of them.