Half of xAI’s founding team has departed the company

Artificial intelligence company xAI has experienced a significant wave of leadership turnover, culminating in the recent departures of two co-founders. On Monday night, co-founder Yuhuai (Tony) Wu announced his departure from the company, stating, “It’s time for my next chapter”. Wu also shared his perspective that a small team armed with artificial intelligence can redefine what is possible. Less than a day later, on Tuesday afternoon, fellow co-founder Jimmy Ba also announced his departure. Ba expressed gratitude to CEO Elon Musk for bringing the team together and noted that he plans to remain close as a friend of the team. With these two exits, exactly half of xAI’s original 12-person founding team has now left the company.

The departures of Wu and Ba are part of a larger trend of personnel changes at the startup, which was founded nearly three years ago. Out of the six founding team members who have left, five of the departures occurred in just the last year. The timeline of departures began in mid-2024 when former infrastructure lead Kyle Kosic left the company to join competitor OpenAI. He was followed by Christian Szegedy, who left in February 2025. Igor Babuschkin departed in this past August, and Greg Yang left last month. This series of departures comes at a critical transition point for xAI, as SpaceX’s acquisition of the company is now complete, and xAI has an Initial Public Offering (IPO) pending in the coming months.

These leadership changes coincide with technical and operational challenges for xAI’s products. The Grok chatbot, the company’s flagship product, has struggled with bizarre behavior and apparent internal tampering. Recent updates to xAI’s image-generation tools flooded the platform with deepfake pornography—defined as synthetic media in which a person in an existing image or video is replaced with someone else’s likeness. These product difficulties have created additional pressure as xAI attempts to keep its models competitive against rival AI firms, including OpenAI and Anthropic.

Why it matters

The cumulative impact of these departures is alarming as xAI faces an upcoming IPO and intense pressure to keep its Grok chatbot competitive against rivals like OpenAI and Anthropic.