Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability

A U.S. court ruled that Anthropic’s use of books to train its AI models qualifies as fair use, as does converting print books to digital format. However, the company must now face trial over pirated library copies allegedly used to build its internal central data library. The court denied Anthropic’s motion for full summary judgment, citing lack of justification and evasive discovery practices regarding unauthorized copies. Statutory damages remain on the table.


This content originally appeared on HackerNoon and was authored by Legal PDF: Tech Court Cases

:::tip ANDREA BARTZ, CHARLES GRAEBER, and KIRK WALLACE JOHNSON v. ANTHROPIC PBC, retrieved on June 25, 2025, is part of HackerNoon’s Legal PDF Series. You can jump to any part in this filing here. This is part 10 of 10.

:::

5. OVERALL ANALYSIS

After the four factors and any others deemed relevant are “explored, [ ] the results [are] weighed together, in light of the purposes of copyright.” Campbell, 510 U.S. at 578.

The copies used to train specific LLMs were justified as a fair use. Every factor but the nature of the copyrighted work favors this result. The technology at issue was among the most transformative many of us will see in our lifetimes.

The copies used to convert purchased print library copies into digital library copies were justified, too, though for a different fair use. The first factor strongly favors this result, and the third favors it, too. The fourth is neutral. Only the second slightly disfavors it. On balance, as the purchased print copy was destroyed and its digital replacement not redistributed, this was a fair use.

The downloaded pirated copies used to build a central library were not justified by a fair use. Every factor points against fair use. Anthropic employees said copies of works (pirated ones, too) would be retained “forever” for “general purpose” even after Anthropic determined they would never be used for training LLMs. A separate justification was required for each use. None is even offered here except for Anthropic’s pocketbook and convenience.

And, as for any copies made from central library copies but not used for training, this order does not grant summary judgment for Anthropic. On this record in this posture, the central library copies were retained even when no longer serving as sources for training copies, “hundreds of engineers” could access them to make copies for other uses, and engineers did make other copies. Anthropic has dodged discovery on these points (e.g., Opp. Exh. 17 at 93– 94 (retained); Opp. Exh. 22 at 196 (no limits); Opp. Exh. 30 at 3, 4 (no accounting); see also Opp. 15). We cannot determine the right answer concerning such copies because the record is too poorly developed as to them. Anthropic is not entitled to an order blessing all copying “that Anthropic has ever made after obtaining the data,” to use its words (Opp. Exh. 30 at 3, 4).

CONCLUSION

With respect to the training copies and the print-to-digital converted copies, this order has drawn all ambiguities and inferences in favor of the opposing side, namely Authors. With respect to the pirated copies, this order has also accepted the Authors’ version of the facts. Authors did not move for summary judgment but if they had, then we would have been obligated to accept all reasonable views given the evidence in defendant’s favor instead.

This order grants summary judgment for Anthropic that the training use was a fair use. And, it grants that the print-to-digital format change was a fair use for a different reason. But it denies summary judgment for Anthropic that the pirated library copies must be treated as training copies.

We will have a trial on the pirated copies used to create Anthropic’s central library and the resulting damages, actual or statutory (including for willfulness). That Anthropic later bought a copy of a book it earlier stole off the internet will not absolve it of liability for the theft but it may affect the extent of statutory damages. Nothing is foreclosed as to any other copies flowing from library copies for uses other than for training LLMs.

IT IS SO ORDERED.


:::info About HackerNoon Legal PDF Series: We bring you the most important technical and insightful public domain court case filings.

\ This court case retrieved on June 25, 2025, from storage.courtlistener.com, is part of the public domain. The court-created documents are works of the federal government, and under copyright law, are automatically placed in the public domain and may be shared without legal restriction.

:::

\


This content originally appeared on HackerNoon and was authored by Legal PDF: Tech Court Cases


Print Share Comment Cite Upload Translate Updates
APA

Legal PDF: Tech Court Cases | Sciencx (2025-07-03T11:00:14+00:00) Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability. Retrieved from https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/

MLA
" » Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability." Legal PDF: Tech Court Cases | Sciencx - Thursday July 3, 2025, https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/
HARVARD
Legal PDF: Tech Court Cases | Sciencx Thursday July 3, 2025 » Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability., viewed ,<https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/>
VANCOUVER
Legal PDF: Tech Court Cases | Sciencx - » Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability. [Internet]. [Accessed ]. Available from: https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/
CHICAGO
" » Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability." Legal PDF: Tech Court Cases | Sciencx - Accessed . https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/
IEEE
" » Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability." Legal PDF: Tech Court Cases | Sciencx [Online]. Available: https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/. [Accessed: ]
rf:citation
» Judge Rules Anthropic’s Use of Books for AI Training Was Legal, but Pirated Copies Raise Liability | Legal PDF: Tech Court Cases | Sciencx | https://www.scien.cx/2025/07/03/judge-rules-anthropics-use-of-books-for-ai-training-was-legal-but-pirated-copies-raise-liability/ |

Please log in to upload a file.




There are no updates yet.
Click the Upload button above to add an update.

You must be logged in to translate posts. Please log in or register.