On MacOS, use HoudahSpot. It’s awesome. Not AI, but as others have said, you likely want plain text search, not “AI” or a chatbot, for something like this.

If you’re having trouble thinking of search terms to plug into HoudahSpot (or grep etc.) then I suppose you could ask a chatbot to assist your brainstorming, and then plug those terms into HoudahSpot/grep/etc.