Elon Musk
CEO & Founder — xAI
CEO and founder of xAI (July 2023). Also CEO of Tesla, SpaceX, and formerly Twitter/X. Co-founded OpenAI in 2015 (departed 2018). xAI’s Colossus cluster in Memphis (200K GPUs) is one of the largest AI training facilities. SpaceX acquired xAI in February 2026 at $1.25T combined valuation.
Affiliations
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