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FUNDING & BUSINESSxAI2026-03-29

Elon Musk's Last Two Co-Founders Depart xAI as Company Undergoes Major Restructuring

Key Takeaways

  • ▸All 11 of xAI's original co-founders have now reportedly left the company within a short timeframe
  • ▸Musk has acknowledged xAI requires fundamental reconstruction after its initial founding structure failed to materialize as intended
  • ▸xAI's acquisition by SpaceX represents a significant consolidation of Musk's AI, aerospace, and social media ventures
Source:
Hacker Newshttps://techcrunch.com/2026/03/28/elon-musks-last-co-founder-reportedly-leaves-xai/↗

Summary

Manuel Kroiss and Ross Nordeen, the final two remaining co-founders at Elon Musk's AI startup xAI, have reportedly left the company, marking the departure of all but one of Musk's original 11 co-founders. Kroiss, who led the company's pretraining team, and Nordeen, who served as Musk's "right-hand operator," both reported directly to Musk before their exits. The departures come as Musk has acknowledged that xAI "was not built right the first time around" and the company is now being "rebuilt from the foundations up." The startup was recently acquired by Musk's SpaceX, consolidating SpaceX, xAI, and X (formerly Twitter) under a single corporate structure amid reports that SpaceX is preparing for a public offering.

  • The departures signal potential instability within xAI's leadership despite Musk's continued involvement and vision for the company

Editorial Opinion

The near-complete exodus of xAI's original founding team raises serious questions about the company's strategic direction and internal dynamics. While Musk's acknowledgment that xAI needs rebuilding suggests a candid self-assessment, the loss of senior technical leadership like Kroiss—who led critical pretraining efforts—could significantly impair the company's near-term AI development pace. Consolidating xAI under SpaceX may provide operational and financial resources, but the departure of institutional knowledge and executive talent is a concerning signal for investors and prospective hires about the company's stability and culture.

Large Language Models (LLMs)Startups & FundingMergers & Acquisitions

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