Elon Musk's artificial intelligence firm xAI has been formally rebranded as SpaceXAI, five months after it merged with his rocket company SpaceX. The change, announced via a post on X alongside a new logo, marks the point at which xAI ceases to exist as a separate company under SpaceX. It matters because it consolidates several of Musk's major ventures — AI, space and the X social network — under a single corporate identity and signals the group's ambition to build data centres in orbit.

SpaceX acquired xAI in February, with Musk arguing that global electricity demand for AI could not be met by terrestrial solutions and that moving power-hungry data centres into space was "the only logical solution". The company has an application before the US Federal Communications Commission to launch a million satellites to form a space-based data centre. As xAI had itself acquired X in 2025, the social network now also sits under the SpaceXAI brand. The combined business went public in June, closing at $161 a share for a valuation of $2.1 trillion, though the new name has yet to appear in official filings.