OpenAI has just released GPTs, a new feature where you can create custom Chat GPTs for more specific use cases. It's currently available to ChatGPT Plus subscribers only but they'll soon be made available for general use.
Overall it has pretty good understanding of Gypsy Jazz history, techniques and musical concepts.
It can even spit out some decent musical theory, show guitar tabs or create AI images!
Will post a few screenshots.
Give it a try if you can. My plan is to train it with some extra-knowledge from experts.