xAI cofounder is taking a step back to 'go founder mode on my health' after Lyme disease diagnosis

An xAI cofounder is shifting into an advisory role after a Lyme disease diagnosis to "go founder mode on my health."

Illustration by Samuel Boivin/NurPhoto via Getty Images

• An xAI cofounder said he's stepping back after being diagnosed with Lyme disease.
• Greg Yang said he will move into an advisory role immediately to "go founder mode on my health."
• Two other xAI cofounders left the company last year.

After months of unexplained fatigue, an xAI cofounder says...