In a recording of an all-hands meeting posted to X, Elon Musk detailed the company's new structure.

A sixth co-founder of Elon Musk’s xAI is leaving the company following tensions among its technical team over demands to improve its models as the billionaire merges the AI start-up with rocketmaker SpaceX.

Jimmy Ba, a cofounder who led research and safety efforts at the company, announced his departure on Tuesday via an X post that thanked Musk and said he would “continue to stay close as a friend of the team.

Jimmy Ba left the company one day after the departure of Tony Wu, another cofounder at Elon Musk's AI company.

Elon Musk has overhauled xAI’s executive ranks after the merger of his AI start-up with SpaceX, telling staff he wants to build a factory and city on the Moon and catapult AI satellites into space. The billionaire said the start-up had “part [ed] ways with some people” as part of a reorganisation in recent days “to improve speed of execution”.

Six of xAI's 12 co-founders have departed, with five leaving in the past year alone—just as Elon Musk's AI lab prepares for a major IPO following SpaceX's acquisition.

The exodus from Elon Musk's corporate empire reached a new fever pitch this week as two high-ranking leaders—Tony Wu, a co-founder of xAI, and Raj Jegannathan, a Tesla, Inc. (NASDAQ:TSLA) vice president—announced their resignations within 48 hours of each other.