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SpaceX Restructures xAI After Co-Founders Depart

3/29/2026

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Story summary
  • xAI has lost its last two co-founders, Manuel Kroiss and Ross Nordeen, after nine others left earlier this month.
  • Musk said xAI was not built right the first time and is being rebuilt from the ground up.
  • SpaceX acquired xAI, consolidating SpaceX, X (formerly Twitter), and xAI under one umbrella as SpaceX prepares for a public offering.
  • Manuel Kroiss led the pretraining team, and Ross Nordeen was Musk's key operator, previously involved in layoffs at Twitter.