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OpenAI's corporate witness: one LibGen book set was a direct download, the other was torrented, and the 2022 decision to delete them was led by its lawyers
OpenAI filed excerpts of the deposition of its corporate designee on the Books1 and Books2 datasets. He testified that a researcher obtained the first set by direct download from a site associated with Library Genesis, and that he believes a second employee, Benjamin Mann, torrented files associated with the same site to build the second. He testified that the datasets were deleted in mid-July 2022 after discussions that "was led by legal," involving the then general counsel and a product lawyer, who brought in several technical staff; that one engineer carried out the deletion; and that models already trained on the data were still operating at the time. One copy later turned up in old cloud storage and was produced. He declined, on privilege grounds, to give the reasons. OpenAI's cover letter says the last model trained on LibGen books was GPT-3.5. Mann later co-founded Anthropic. This is OpenAI's own witness; only excerpts are public.
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