There are new AI projects like chatgpt but this doesn't have a relation to crypto, yet people in the crypto space are trying to use it and see if what it can do to help them. This must be the reason why AI crypto projects are slowly coming out again. Indeed that AI projects have a lot of wealthy backers. Of course one of it is Elon Musk, as this guy is also inventing his own AIs.
Yes, Tesla's smart cars which have a lot of automatic features and drives by themselves, plus the neural link Elon Musk is developing fully rely on AIs to work. He is one of the most interested entrepreneurs (if not the main one) in this kind of technology and won't save efforts and money when having to sponsor AIs' development and improvement. I believe there must be a big competition going on the backgrounds of the billionaires' world, similar to a "gold rush" towards the most efficient and top notch AI of the market. The first to achieve it, wins.