Artificial intelligence is sctual technology and there is much use case behind it, but you need to be careful, because it is also a concept which is being exploited by cryptocurrency developers who which to hype their projects more than they are actually worth... It is a similar sistuation to what happened with Defi, NFTs, Play-to-Earn and other concepts which were hyped to the extreme and ended up turning into bubbles, which ended up being completely losses to late investors.
As it stands today, the most used artificial intelligences continue to be those which are developed by centralized companies like Google, Meta... And almost nobody pays attention to decentralized solutions, because it is always easier to use pre-installed AIs on our phones than getting out one's way to seek decentralized alternatives.