xAI Hit by Co-Founder Exits in Rapid Succession

Elon Musk’s artificial intelligence company xAI lost a second co-founder in two days after influential researcher Jimmy Ba announced on X that he has departed. Ba, a University of Toronto professor, wrote that he was “grateful to have helped cofound at the start.” His exit followed Tony Wu’s departure a day earlier. The departures add to a longer list of early leaders who have left xAI, including Igor Babuschkin, Kyle Kosic, and Christian Szegedy, while Greg Yang said last month he would step back to focus on treatment for Lyme disease. The moves arrive as xAI faces regulatory probes in Europe, Asia, and the U.S. tied to Grok tools used to create non-consensual explicit images.