If you take .ai out of it, .com is still dominant.
Exactly, and nothing will ever match the "prestige" of .com .ai is also kind of cool right now but it will probably lose its appeal after some years when everything will become AI and the world will get tired of the term. But .com is still at the top of the food chain. If you can survive for a few years, raise your series A/B, you will likely have enough money to acquire your sexy single-word .com name.
Just found out the great ol’ command.com is taken by somebody random