In A Recent Tweet Elon Musk Said:

“I used to be in crypto, but now I got interested in AI"
But
It is not entirely accurate to say that Elon Musk likes AI more than crypto, as he has expressed interest and involvement in both areas. However, Musk has been more vocal about his concerns regarding artificial intelligence (AI) and its potential risks to humanity, which may explain why he has discussed AI more often than crypto.
Musk has warned about the dangers of AI becoming more intelligent than humans and potentially becoming a threat to humanity. He has also co-founded a company called OpenAI, which aims to develop safe and beneficial AI for everyone.
On the other hand, while Musk has expressed some interest in cryptocurrency, he has also raised concerns about its environmental impact, particularly with regards to Bitcoin's energy consumption. In May 2021, he announced that Tesla would no longer accept Bitcoin as payment for its cars, citing concerns about the cryptocurrency's energy usage.
In summary, while Musk has shown interest in both AI and crypto, his public comments suggest that he may be more focused on the potential risks and benefits of AI, rather than crypto.