X owner Elon Musk announced late Friday that the social media site had been sold ... to xAI, Musk's own Artificial Intelligence company.

"xAI and X’s futures are intertwined," Musk posted on X. "Today, we officially take the step to combine the data, models, compute, distribution and talent ... this will allow us to build a platform that doesn’t just reflect the world but actively accelerates human progress."