Elon Musk’s last co-founder reportedly leaves xAI

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Mar 29, 2026
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Elon Musk’s last co-founder reportedly leaves xAI
Elon Musk's AI company xAI has seen the departure of its last two co-founders, marking a significant shift as the company is reorganized under SpaceX ownership. Both Manuel Kroiss and Ross Nordeen, who held key leadership roles, have left xAI as CEO Elon Musk oversees a major company restructuring.

Elon Musk’s Last Co-founder Reportedly Leaves xAI

Major Departures at xAI as Musk Leads Company Overhaul

Elon Musk’s artificial intelligence startup, xAI, has experienced the exit of its last two remaining co-founders. According to a report by Business Insider, Manuel Kroiss and Ross Nordeen, who both played pivotal roles within the company, have now left following the earlier departure of nine other co-founders. These leadership changes further underscore the extensive restructuring taking place at xAI.

xAI’s Shift Under SpaceX

The recent changes come after Musk himself admitted that the foundation of xAI “was not built right the first time,” prompting a complete organizational rebuild. xAI has now been acquired by SpaceX, combining Musk’s ventures—SpaceX, xAI, and X (formerly known as Twitter)—under one corporate structure. These moves coincide with reports that SpaceX is preparing for a possible public offering.

Leadership and Company Strategy

Kroiss led xAI’s pretraining team and Nordeen acted as Musk’s right-hand operator. Both reported directly to Musk and influenced strategic decisions, including layoffs after Musk’s Twitter acquisition in 2022. Their departures highlight significant changes happening behind the scenes as xAI adapts to a new direction within Musk’s portfolio.

For more details, read the original article by Anthony Ha on TechCrunch.

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