I’d bet someone else owned it, had it pointed at chatgpt hoping they’d buy it, and just made a ton selling to Elon and crew for the vanity domain (which is pretty funny since x.ai is actually shorter).
Ai.com is such a better domain than x.ai. Still probably a waste of money to just redirect it.
.com matters now as many people know that is a very common ending of the url. Once years pass as people know about other possibilities, it matters less and less.
Plenty of people think that a url needs to have a .com to be correct, and the only time a different higher domain is used is when they go from a .com website(like google) or a bookmark/automatically opens. They just think of them like doors in a building. They have to go through a door to access the "other internet." (Go from a .com site to crossover to the other levels of the internet) while bookmarks and other methods are essentially literal shortcuts in a physical sense(even though they can type it into the address bar) equating a shortcut to a button on an elevator, etc.