Stanford Study: All Six Major AI Companies Train on Your Chat Data by Default
A Stanford analysis found that every major AI company — including OpenAI and Google — uses consumer chat data for model training by default, with opt-out buried in settings most users never find.
A Stanford research finding circulating Tuesday confirmed what many suspected but few had documented systematically: all six of the largest AI companies train their models on consumer chat data by default. As @hasantoxr summarized, enterprise customers are typically opted out, but individual consumers are opted in — and the opt-out mechanisms are often buried deep in account settings.
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