I do / have done research in building deep learning models and custom / novel attention layers, architectures, etc., and AI (ChatGPT) is tremendously helpful in facilitating (semantic) search for papers in areas where you may not quite know the magic key words / terminology for what you are looking for. It is also very good at linking you to ideas / papers that you might not have realized were related.

I also found it can be helpful when exploring your mathematical intuitions on something, e.g. like how a dropout layer might effect learned weights and matrix properties, etc. Sometimes it will find some obscure rigorous math that can be very enlightening or relevant to correcting clumsy intuitions.