100,000 GPU AI cluster — xAI Colossus for xAI @Grok from xAI
SpaceXAI (formerly xAI), legally incorporated as X.AI LLC, is a subsidiary of the American spaceflight company SpaceX working in the areas of artificial intelligence (AI) and social media.
SpaceXAI's flagship products are the generative AI chatbot Grok and the social network X, which was acquired in March 2025. It also constructed the Colossus supercomputer and launched a data center business. In August 2026 it completed the acquisition of the AI coding company Cursor (Anysphere). Prior to being acquired by SpaceX in February 2026, SpaceXAI's assets were part of a standalone corporation named X.AI Corp., founded by Elon Musk and 11 researchers in 2023.