A recent legal decision has reaffirmed the power of fair use in the digital age, and it’s a big win for libraries and the future of public access to knowledge.
On June 24, 2025, Judge William Alsup of the United States District Court for the Northern District of California ruled in favor of Anthropic, finding that the company’s use of purchased copyrighted books to train its AI model qualified as fair use. While the case centered on emerging AI technologies, the implications of the ruling reach much further—especially for institutions like libraries that depend on fair use to preserve and provide access to information.
What the Decision Says
In the case, publishers claimed that Anthropic infringed copyright by including copyrighted books in its AI training dataset. Some of those books were acquired in physical form and then digitized by Anthropic to make them usable for machine learning.
The court sided with Anthropic on this point, holding that the company’s “format-change from print library copies to digital library copies was transformative under fair use factor one” and therefore constituted fair use. It also ruled that using those digitized copies to train an AI model was a transformative use, again qualifying as fair use under U.S. law.
This part of the ruling strongly echoes previous landmark decisions, especially Authors Guild v. Google, which upheld the legality of digitizing books for search and analysis. The court explicitly cited the Google Books case as supporting precedent.
While we believe the ruling is headed in the right direction—recognizing both format shifting and transformative use—the court factored in destruction of the original physical books as part of the digitization process, a limitation we believe could be harmful if broadly applied to libraries and archives.
What It Means for Libraries
Libraries rely on fair use every day. Whether it’s digitizing books, archiving websites, or preserving at-risk digital content, fair use enables libraries to fulfill our public service missions in the digital age: making knowledge available, searchable, and accessible for current and future generations.
This decision reinforces the idea that copying for non-commercial, transformative purposes—like making a book searchable, training an AI, or preserving web pages—can be lawful under fair use. That legal protection is essential to modern librarianship.
In fact, the court’s analysis strengthens the legal groundwork that libraries have relied on for years. As with the Google Books decision, it affirms that digitization for research, discovery, and technological advancement can align with copyright law, not violate it.
Looking Ahead
This ruling is an important step forward for libraries. It reaffirms that fair use continues to adapt alongside new technologies, and that the law can recognize public interest in access, preservation, and innovation.
As we navigate a rapidly changing technological landscape, it’s more important than ever to defend fair use and support the institutions that bring knowledge to the public. Libraries are essential infrastructure for an informed society, and legal precedents like this help ensure they can continue their vital work in the digital age.