LLMs are an instance of AI. There are many. Typically, the newest promising one is what the media will refer to as “AI” because the media don’t do subtlety.

There was a time when expert systems were the one thing the media considered to be AI (and were overhyped to the point of articles wondering if they’d make jobs like general practitioners obsolete). Now it’s generational neural nets. In twenty years it’ll be something else.