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Court rulings, company filings and allegations in the copyright cases against AI companies and pirate libraries, over books, articles, music, images, video and code. Checked for new filings every three hours; items are posted after review, so some appear later. Get these by e-mail · Court filings, free to read

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Company filingOctober 21, 2024Bartz v. Anthropic PBC · N.D. Cal. 3:24-cv-05417

Anthropic's first answer to the authors' suit admitted only that it used parts of The Pile to train Claude

In its October 2024 answer to the Bartz complaint, the only source of training data Anthropic admitted was "portions of the Pile," a public collection that includes the Books3 book set. It otherwise denied the allegations or said it lacked knowledge, and its defenses included fair use, innocent infringement and lack of volitional conduct. The answer does not mention LibGen or the Pirate Library Mirror; the complaint it answered is not quoted in the answer, so a reader cannot tell from the answer alone what was asked. A second answer in December 2024 was the same in substance. The court's June 2025 order later described, as undisputed, downloads of Books3 in early 2021, LibGen in June 2021 and the Pirate Library Mirror in July 2022. This item reports Anthropic's own pleading.

Anthropic's answer (Dkt. 57), paras. 31, 42, 55 ↗

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Every item says what kind of source it rests on. A court ruling or order is the court's own statement. A company filing is what a defendant says about itself. A government filing is a statement by a government agency that is not a party to the case, such as a statement of interest; it is the government's position, not a ruling. An allegation is what a complaint or motion claims and has not been decided. Reported means press reporting we have not confirmed from the primary document. Summaries are our own; follow the links for the source.

This page is general information, not legal advice. An allegation is not a finding. Whether any of this matters for a particular work or claim is a question for a lawyer.