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OpenAI to face US authors’ downloading allegations regardless of model training

By Emma Whitford ( October 28, 2025, 20:45 GMT | Insight) -- OpenAI will have to defend against its alleged downloading of pirated books, including those it didn't subsequently use to train ChatGPT, US District Judge Sidney H. Stein ordered Tuesday. Book authors’ “download theory” of infringement isn't new to their case despite OpenAI’s arguments to the contrary, Stein found. The judge also ordered that the case will encompass Microsoft's Copilot and Office Suite products.OpenAI will have to defend against its alleged amassing of pirated books, including those it didn't subsequently use to train ChatGPT, US District Judge Sidney H. Stein ordered Tuesday....

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