The Anthropic $1.5 billion AI copyright settlement resolves a class action brought by authors whose books were downloaded from pirate libraries and used to train the Claude large language model. If approved, it will be the largest copyright settlement in American history, covering roughly 482,460 works and paying an estimated $3,000 per work before fees. A federal judge in San Francisco held a fairness hearing on May 14, 2026, and final approval is pending.
Which Books and Authors the Settlement Covers
The class includes the legal or beneficial copyright owners of any book that Anthropic downloaded from two pirate repositories: Library Genesis (LibGen) and the Pirate Library Mirror (PiLiMi). To qualify, a book must have an ISBN or ASIN and must have been registered with the U.S. Copyright Office within five years of publication.
Two categories were left out. Books from the Books3 dataset were excluded because the metadata was too thin to identify titles and authors reliably. And books that Anthropic obtained by buying used print copies, cutting the bindings, and scanning the pages are not part of the class, because the court found that practice was fair use.
The certified class ultimately covered 482,460 distinct works. By the time of the May 2026 fairness hearing, claims had been filed on 447,576 of them, a participation rate of 92.77%.
How Much Each Work Pays
The settlement fund is $1.5 billion and is non-reversionary, meaning unclaimed money does not return to Anthropic. With roughly 500,000 eligible titles, the estimated payment is about $3,000 per work before deductions for administrative costs, attorneys’ fees, and service awards. That figure could rise if fewer valid claims come in.
Each work’s payment is then divided among its rightsholders. For trade and university press books, the default split is 50/50 between author and publisher, unless one side documents a different contractual arrangement. Self-published authors, and authors whose rights have reverted to them, receive the full amount. Educational and textbook works have no default split; claimants must give a good-faith estimate of their contractual share or provide documentation.
Deductions from the fund include class counsel’s fees, initially requested at $300 million and later revised down to $187.5 million by March 2026, plus a separate $75 million request from non-class counsel that Anthropic opposed. Each of the three named plaintiffs — Andrea Bartz, Charles Graeber, and Kirk Wallace Johnson — is eligible for a $50,000 service award. Disputes between co-claimants over how to split a payment go to Attorney Naomi Jane Gray, whom the court appointed as Special Master.
Claims Deadline and Payment Timing
The deadline to file a claim was March 30, 2026. Claims were administered by JND Legal Administration, and rightsholders could check the official Works List and submit claims through the settlement website or by mail.
Anthropic is paying the $1.5 billion in four installments: $300 million was due by October 2, 2025; another $300 million within five business days of final approval; $450 million by September 25, 2026; and a final $450 million by September 27, 2027. Interest accrues on the third and fourth payments from September 25, 2025.
The settlement administrator estimated initial payments to class members could begin around August 10, 2026, assuming the court grants final approval and no appeals delay the process.
What Anthropic Must Do Beyond Paying
Anthropic agreed to destroy every copy of the books it downloaded from LibGen and PiLiMi and to provide written certification that it has done so. The company did not admit liability.
Two limits on the release matter for anyone reading the fine print. The settlement does not give Anthropic a license to use the works going forward. And it does not release claims tied to Claude’s outputs: if the model were ever shown to reproduce protected content, that would remain a separate legal matter. The settlement covers past acquisition and use of the identified works only, through August 25, 2025.
Why the Pirated Downloads Created Liability
The authors — Bartz, Graeber, and Johnson, along with their loan-out entities — filed the class action in August 2024 in the Northern District of California. Court filings said Anthropic downloaded at least five million book copies from LibGen and two million from PiLiMi.
On June 23, 2025, Judge William Alsup issued a summary judgment ruling that shaped everything that followed. He held that training a large language model on copyrighted books is “quintessentially transformative” and qualifies as fair use. He also held that buying print books, scanning them, and destroying the originals was fair use as a format change for internal use.
But he drew a sharp line at pirated copies kept in a permanent general-purpose library. Those downloads, the judge wrote, “plainly displaced demand for Authors’ books — copy for copy,” and there is “no carveout from the Copyright Act for AI companies” to take copyrighted works for free and hold them indefinitely. Later use of some pirated copies for transformative training, he added, did not retroactively cure the initial infringement. That holding is what put Anthropic on the hook and what the settlement resolves.
Opt-Out Warnings and the ClaimsHero Episode
Only 53 formal objections were filed, and roughly half came from people asking to be added to the class rather than opposing the deal. Lead plaintiffs’ attorney Justin Nelson of Susman Godfrey called the opt-out rate “minuscule.”
Authors who were solicited by outside firms promising bigger recoveries should know about one specific episode. ClaimsHero Holdings LLC, an Arizona-based firm, ran a campaign urging authors to opt out and pursue individual suits. At a November 2025 hearing, Judge Alsup called the campaign “a fraud of immense proportions” and “a blatant attempt to trick people into opting out,” characterized the strategy as “extortion” aimed at a “nuisance settlement,” and ordered ClaimsHero to update its website within 48 hours to disclose that it had no experience litigating in federal or state court. He ordered CEO Matthew Freund to testify at an evidentiary hearing and said he might refer the matter to the U.S. Attorney.
The Authors Guild separately warned members that promises of dramatically larger individual awards were “pie in the sky.” The Guild noted that the $3,000 per-work figure actually tracks the median statutory damages award in cases involving more than twelve works, and that maximum statutory damages of $150,000 per work are “rarely awarded.” Independent litigation, it cautioned, would be “risky, lengthy, and burdensome,” potentially pushing recovery into 2027 or later with expenses that could exceed $1 million.
A Canadian publisher’s lawyer asked for better terms than the class settlement offered. Judge Alsup ruled the publisher could opt out but could not negotiate a sweeter deal than other class members.
The Registration Gap and Macmillan’s Response
Some authors found their works excluded because their publishers had not registered the copyrights with the U.S. Copyright Office, which is a prerequisite for class membership. Macmillan is the only major publisher that publicly took responsibility. The company said it takes “full responsibility” and promised to pay affected authors what they would have received under the settlement, communicating directly with the authors and agents involved. As of early 2026, no other publisher had announced a comparable program, and the Authors Guild urged others to follow.
Where Final Approval Stands
The case was reassigned from Judge Alsup, who retired, to Judge Araceli Martínez-Olguín for final approval. The 75-minute fairness hearing on May 14, 2026, focused mainly on attorneys’ fees and the settlement’s cost structure. The judge did not approve the deal from the bench. She ordered Anthropic to file a supplemental brief of no more than two pages by May 21, 2026, explaining why five late opt-out requests should not be honored, and said she did not need further submissions from objectors.
As of mid-June 2026, the final approval order remains pending. Payments cannot begin until it issues and any appeals are resolved.