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Elon Musk's xAI Has Lost All 8 of Its Original Co-Founders Since January- Ross Nordeen Is the Last to Go

All 11 co-founders of Elon Musk's AI startup xAI have departed amid restructuring following its $250 billion acquisition by SpaceX ahead of a planned IPO.

  • On Friday, xAI co-founder Ross Nordeen departed the company, following Manuel Kroiss's resignation earlier in the week, marking the exit of all 11 original co-founders from Elon Musk's AI startup.
  • Elon Musk recently claimed xAI "was not built right first time around," prompting reorganization after SpaceX acquired the startup in February for a $250 billion valuation.
  • Kroiss led the company's pretraining team, while Nordeen served as Musk's "right-hand operator," coordinating execution across the firm; both reported directly to the founder.
  • Musk is actively recruiting new talent to replace departing staff, recently hiring senior leaders Andrew Milich and Jason Ginsberg from AI coding company Cursor.
  • SpaceX is preparing for a potential IPO in mid-2026 targeting a $1.75 trillion valuation, while the firm faces a competitive talent market where Meta reportedly offers packages worth up to $300 million to retain researchers.
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Business Insider broke the news in United States on Saturday, March 28, 2026.
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