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Hundreds of thousands of videos from news publishers like The New York Times and Vox were used to train AI models

Summary by Nieman Lab
Last month, The Atlantic dropped the latest investigation in its ongoing series on generative AI training data sets. Staff writer Alex Reisner found that at least 15 million YouTube videos had been used for training data by major technology companies, either for research or, in some cases, to build AI video products. The Atlantic’s reporting focused over a dozen prominent training data sets that were either compiled or used by companies includin…

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Nieman Lab broke the news in on Thursday, October 30, 2025.
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