Under Armor makes a great app to track meals and count calories / macros that I really like called MyFitnessPal. It's not so much tied to groceries, but it helps me plan out my meal prep for the week. I've been using ChatGPT to help me come up with menus and meal plans to keep me on track. It has been one of my favorite uses of AI so far.
I have heard there is one that will plan a meal based on what you have in the cupboard - come across it?
I think you can just do that with ChatGPT and maybe the new AI you're talking about was built on top of its pre-built GPT.