
A copyright lawsuit over pirated books could result in ‘business-ending’ damages for Anthropic
Key Takeaways
The lawsuit centers on Anthropic’s use of books to train its LLM, Claude, and could leave the company on the hook for billions of dollars worth of damages.
Article Overview
Quick insights and key information
7 min read
Estimated completion
financial news
Article classification
July 28, 2025
03:28 PM
Fortune
Original publisher
AI·LawA copyright lawsuit over pirated books could result in ‘-ending’ damages for AnthropicBy Beatrice NolanBy Beatrice NolanReporterBeatrice NolanReporterBeatrice Nolan is a reporter at Fortune covering
Furthermore, Beatrice previously worked as a reporter at Insider, covering stories AI and Big
Additionally, She's based in Fortune's London office and graduated from the University of York with a bachelor's degree in English
Furthermore, SEE FULL BIO The class-action lawsuit against the company centers on Anthropic’s use of potentially pirated books to train its large language model
A class-action lawsuit against Anthropic could expose the AI company to billions in copyright damages over its alleged use of pirated books from shadow libraries LibGen and PiLiMi to train its models
While a federal judge ruled that training on lawfully obtained books may qualify as fair use, the court will hold a separate trial to address the allegedly illegal acquisition and storage of copyrighted works, in today's financial world
Moreover, Legal experts warn that statutory damages could be severe, with estimates ranging from $1 billion to over $100 billion, given the current landscape
Leading AI lab Anthropic is reckoning with a legal battle that could jeopardize the company’s future
This leads to the conclusion that tells us that class-action lawsuit against the company centers on Anthropic’s use of potentially pirated books to train its large language model, Claude, and could leave the company on the hook for billions of dollars worth of damages
Moreover, According to court filings, the company downloaded millions of copyrighted works from shadow libraries LibGen and PiLiMi to train AI models and build a “central library” of digital books that would include “all the books in the world” and preserve them indefinitely
However, The Plaintiffs— which includes Andrea Bartz, Charles Graeber and Kirk Wallace Johnson— allege that millions of these works were obtained from piracy websites in direct violation of copyright law
Conversely, The Judge presiding over the case, Judge William Alsup, has recently ruled that training AI models on lawfully-acquired books qualifies as “fair use,” and that AI companies do not need a license from copyright holders to conduct such training, a decision that was viewed as a major win for the AI sector
Additionally, However, the still unresolved issue is how Anthropic obtained and stored the copyrighted books
The judge drew a distinction when it came to the use of pirated materials, advising Anthropic that a separate trial “on the pirated copies” and “the resulting damages” would be forthcoming, in this volatile climate. “The blem is that a lot of these AI companies have scraped piracy sites LibGen…where books have been uploaded in electronic form, usually PDF, without the permission of the, without payment,” Luke McDonagh, an associate fessor of Law at LSE, told Fortune
Moreover, “The judge seems to be suggesting that if you had bought a million books from Amazon in digital form, then you could do the training, and that would be legal, but it’s the it’s the downloading from the pirate website that is the blem, because there’s two things, there’s that acquiring of the copy, and then the use of the copy,” he added
Santa Clara Law fessor Ed Lee said in a blog post that the ruling could leave Anthropic facing “at least the potential for -ending liability. ” The plaintiffs are unly to ve direct financial harm, such as lost sales, and are ly to instead rely on statutory damages, which can range from $750 to $150,000 per work
That range depends heavily on whether the infringement is deemed willful
Moreover, If the court rules that Anthropic knowingly violated copyright law, the resulting fines could be enormous, potentially in the billions, even at the lower end of the scale, in today's financial world
However, The number of works included in the class action and whether the jury finds willful infringement is still a question mark, but potential damages could range from hundreds of millions to tens of billions of dollars
Even at the low end, Lee argues that damages in the range of $1 billion to $3 billion are possible if just 100,000 works are included in the class-action
That figure rivals the largest copyright damages awards on record and could far exceed Anthropic’s current $4 billion in annual revenue, in this volatile climate
Lee estimated that the company could be on the hook for up to $1 (an important development). 05 trillion if a jury decides that the company willfully pirated 6 million copyrighted books
Anthropic did not immediately respond to a request for from Fortune, in today's market environment
However, However, the company has previously said it “respectfully disagrees” with the court’s decision and is exploring its options, which might include appealing Alsup’s ruling or offering to settle the case
Moreover, A trial, which is the first case of a certified class action against an AI company over the use of copyrighted materials, is currently scheduled for December 1
Additionally, The verdict could determine the outcomes of similar cases, such as a high-file battle between OpenAI and dozens of and publishers
Moreover, While the courts do appear to be leaning towards allowing fair use arguments from AI companies, there’s a legal divergence regarding the acquisition of copyrighted works from shadow sites
In a recent copyright case against Meta, Judge Vince Chhabria argued that the transformative purpose of the AI use effectively legitimizes the earlier unauthorized downloading
The ruling, according to McDonagh, suggested that the positive, transformative use of the works could “correct” the initial blematic acquisition, whereas Judge Alsup viewed the downloading of books from unauthorized shadow libraries as “inherently wrong,” suggesting that even if the AI training use might be considered fair use, the initial acquisition of works was illegitimate and would need compensation
However, The two judges also diverged on whether AI-generated outputs could be deemed to compete with the original copyrighted works in their training data
Judge Chhabria acknowledged that if such competition was ved it might undercut a fair use defense but found that, in the Meta case, the plaintiffs had failed to vide sufficient evidence of market harm, whereas Judge Alsup that generative AI outputs do not compete with the original works at all
The legal question around AI companies and copyright work has also become increasingly political, with the current administration pushing to allow AI companies to use copyrighted materials for training under broad fair use tections, in an effort to maintain U
Meanwhile, Leadership in artificial intelligence, in light of current trends
McDonagh said the case against Anthropic was unly to leave the company bankrupt, as the Trump administration would be unly to allow a ruling that would essentially destroy an AI company
Judges are also generally adverse to issuing rulings that could lead to bankruptcy unless there is a strong legal basis and the action is deemed necessary
Courts have been known to consider the potential impact on the company and its stakeholders when issuing rulings that could result in liquidation
In contrast, “The US Supreme Court, at the moment, seems quite friendly to the Trump agenda, so it’s quite ly that in the end, this wouldn’t have been the kind of doomsday scenario of the copyright ruling bankrupting anthropic,” he said, considering recent developments
Meanwhile, “Anthropic is now valued, depending on different estimates, between $60 and $100 billion
Conversely, So paying a couple of billion to the would by no means bankrupt the organization
On the other hand, ” Introducing the 2025 Fortune 500, the definitive ranking of the biggest companies in America (fascinating analysis)
Explore this year's list.
Related Articles
More insights from FinancialBooklet