Comment by plaidfuji

It’s used mostly correctly in each case, and they have different meanings.

AI is a marketing catch-all that encompasses technologies of a certain level of “how did they do that” automation that are generally understood to leverage machine learning models under the hood (but not always).

LLMs are one class of ML models that operate in a text-in-text-out fashion.

“Models” are more of a statistical/mathematical term that generally mean “anything that can make a prediction” - it’s broader than just ML (eg climate models that are first-principles-based, not learned from data).