Another mathematician suspects OpenAI trained on his personal chat data

erikphoel · x · 2026-09-10

After Erik Hoel's essay arguing OpenAI's Navier-Stokes solve likely drew on user drafts, mathematician Andreas Thom is publicly wondering whether OpenAI used his personal user data to train the model's construction of a non-sofic group. Following the Jacobian example, this is another mathematician flagging their own work as possible training data, fueling suspicion that recent AI math breakthroughs mined user chats.

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