Andrew Ho left OpenAI on July 29 after just eight months at the company. He is founding a startup specializing in reinforcement learning datasets, targeting long-horizon scientific reasoning and biology applications. The day after his departure, he publicly advised former colleagues to take liquidity from tender offers while eligible. Ho estimates that OpenAI’s valuation could drop 50% after its IPO, suggesting the current private market pricing is disconnected from reality. His departure is part of a wave of high-profile exits from OpenAI throughout 2026, increasingly resembling a talent bleed.
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