Musk wrote that the merger of SpaceX and xAI will 'form the most ambitious, vertically-integrated innovation engine on (and off) Earth.'

By Echo Wang and Joey Roulette Feb 2 (Reuters) - Elon Musk said on Monday that SpaceX has acquired his artificial-intelligence startup xAI in a record-setting deal that unifies Musk's AI and space ambitions by combining the rocket-and-satellite company with the maker of the Grok chatbot.

Elon Musk, the world's richest man, just combined his companies SpaceX and xAI, creating the most valuable privately-owned company in the world.