The last of xAI’s founding team leaves the company

Ross Nordeen, the last of xAI’s original co-founders still at the company, left on 28 March 2026. Co-founders Guodong Zhang and Zihang Dai had departed earlier in the month, roughly seven weeks after SpaceX completed its all-stock acquisition of xAI.

Why it mattered No member of xAI’s founding team remained by the end of March, following the SpaceX takeover and the internal audits that came with it.