Elon Musk’s last co-founder reportedly leaves xAI
In Brief Posted: 9:11 AM PDT · March 28, 2026 Image Credits:Krisztian Bocsi/Bloomberg / Getty Images Anthony Ha Elon Musk’s last co-founder reportedly leaves xAI Earlier this month, it looked like all but two of Elon Musk’s 11 co-founders at his AI startup xAI had departed the company. Now, according to Business Insider, the remaining two co-founders, Manuel Kroiss and Ross Nordeen, have left as well. BI said on Wednesday that Kroiss had told people that he’s leaving xAI, then reported that Nordeen left the company on Friday. Musk recently claimed xAI “was not built right [the] first time around,” so it’s now “being rebuilt from the foundations up.” The company was recently acquired by Musk’s SpaceX, bringing SpaceX, xAI, and X (formerly…
