Anthropic’s $1.5 billion settlement is a proposed class action resolution that would pay authors and rightsholders roughly $3,000 per book after the AI company was found to have downloaded pirated copies of hundreds of thousands of copyrighted works to train its Claude models. Filed with the court on September 5, 2025, and preliminarily approved later that month, the deal is the largest copyright class action settlement in U.S. history. As of June 2026, it is still awaiting final approval from Judge Araceli Martínez-Olguín in the Northern District of California.1Clark Hill. Right to Know June 2026
Why Anthropic Agreed to Pay
The case, Bartz v. Anthropic PBC, was filed in August 2024 by authors Andrea Bartz, Charles Graeber, and Kirk Wallace Johnson. They alleged that Anthropic mass-downloaded books from two “shadow libraries,” Library Genesis (LibGen) and Pirate Library Mirror (PiLiMi), and used them to train Claude.2Authors Guild. Anthropic AI Class Action: Important Information for Authors
On June 23, 2025, Judge William Alsup issued a split summary judgment ruling that reshaped the case. Training AI models on lawfully acquired books, he held, is “spectacularly” transformative and constitutes fair use. But downloading and permanently keeping pirated copies was “inherently, irredeemably infringing.” Judge Alsup wrote that there is “no carveout for AI companies” to “take for free all the works in the world and keep them forever with no further accounting,” and buying a book later, he added, would not undo the initial theft.3Copyright Alliance. Bartz v. Anthropic Order
A month later, on July 17, 2025, Judge Alsup certified a class of copyright holders whose books appeared in the LibGen and PiLiMi datasets. Anthropic had torrented at least two million copies from PiLiMi and five million from LibGen, with plaintiffs alleging up to seven million copies total.4Justia. Bartz et al v. Anthropic PBC, Filing 244 With statutory copyright damages reaching $150,000 per work, Anthropic’s theoretical exposure exceeded $70 billion.5Wolters Kluwer Legal Blogs. The Bartz v. Anthropic Settlement: Understanding America’s Largest Copyright Settlement A settlement followed in late August.
What the Settlement Pays
The $1.5 billion fund, plus interest, is being paid in four installments. Anthropic paid the first $300 million by October 2, 2025. A second $300 million is due within five business days of final approval, followed by two payments of $450 million on September 25, 2026, and in September 2027.6Anthropic Copyright Settlement. Frequently Asked Questions
The money is divided equally across all works for which valid claims are submitted. Current estimates put the per-work payout at about $3,000, though the final figure depends on how many valid claims come in and how much interest accrues.7Authors Guild. What Authors Need to Know About the Anthropic Settlement
Which Works Qualify
Roughly 482,000 titles appear on the settlement’s searchable Works List. To qualify, a book must:
- Have an ISBN or ASIN,
- Have been registered with the U.S. Copyright Office within five years of publication, and
- Have been registered either before Anthropic downloaded it or within three months of publication.8Classaction.org. Bartz et al. v. Anthropic PBC Notice
The claims deadline was March 30, 2026. By the fairness hearing in May, about 92.8% of eligible works had been claimed, or roughly 447,576 titles.9Publishing Perspectives. Anthropic Settlement Appears to Cruise Through Its Final Fairness Hearing
How Authors and Publishers Split the Money
For trade and university press titles, the default split is 50/50 between the author side and the publisher side. Self-published authors and those who hold all rights to their books receive 100%. Educational works are handled case by case.7Authors Guild. What Authors Need to Know About the Anthropic Settlement
What Anthropic Must Do Beyond Paying
Within 30 days of final judgment, Anthropic must destroy all copies of works downloaded from the LibGen and PiLiMi datasets and certify that those pirated materials were used to train its commercially released models.10Courthouse News Service. Authors, Publishers Near Final Approval of $1.5 Billion Anthropic Copyright Settlement
What the settlement does not do is worth knowing. It releases only past conduct through August 25, 2025. It does not license future use of copyrighted works, does not create a licensing framework going forward, and does not release Anthropic from potential claims tied to infringing outputs generated by Claude.11Copyright Alliance. Participating in the Bartz v. Anthropic Settlement The trained models themselves stay in service; only the pirated source files must go.
Objections and Opt-Outs
Not everyone is satisfied with $3,000 a book. By the May 14, 2026, fairness hearing, 53 objections had been filed, though roughly half were from class members asking to have their works added rather than challenging the deal itself.9Publishing Perspectives. Anthropic Settlement Appears to Cruise Through Its Final Fairness Hearing About 350 works had been opted out, less than 0.5% of the Works List.12Writer Beware. Anthropic Copyright Settlement April Update
The substantive complaints run in several directions. Some class members argue $3,000 is inadequate against statutory damages of up to $150,000 per work. Others say the deal offers no prospective relief because Anthropic can keep operating the models trained on pirated books. Law professor Lea Victoria Bishop objected that the distribution framework favors publishers over authors, citing a Special Master she said built his career representing publishers, the forfeiture of unclaimed author funds to publishers, and the lack of class-counsel help for authors navigating splits with their publishers.13Authors Alliance. Bartz v. Anthropic Fairness Hearing: Final Reminder The National Writers Union called the fund less than 1% of Anthropic’s valuation and said it covers only a “small fraction” of the works actually used.14National Writers Union. Anthropic
Attorney fees drew their own fight. Class counsel initially sought $300 million, with $75 million going to three law firms Judge Alsup said the court had “never blessed” and warned may have been included to discourage publishers from opting out. After his rebuke, lead counsel cut the request to $187.5 million.15PYMNTS. Anthropic Copyright Settlement Lawyers Cut Fee Request to $187.5 Million
Some opt-outs have gone further and sued. On December 22, 2025, journalist John Carreyrou and five other authors filed Carreyrou et al. v. Anthropic PBC et al. in the Northern District of California against Anthropic, OpenAI, Google, Meta, xAI, and Perplexity AI. They are seeking $150,000 per work against each defendant — up to $900,000 per work — and argue their claims should not be “diluted by being swept into sprawling class-action settlements structured to resolve claims for pennies on the dollar.”16Authors Alliance. Bartz v. Anthropic: Updated Opt-Out and Objection Dates and a New Judge A separate group of 25 opted-out class members filed another suit against Anthropic around May 13, 2026.17Ars Technica. Authors Fight for Higher Payouts From Anthropic’s $1.5B Copyright Settlement
The Copyright Registration Gap
Because only registered works qualify, some authors learned during the claims process that their publishers had never registered their copyrights, which left them out of the settlement entirely. Macmillan acknowledged the lapse and agreed to compensate its affected authors for what they would have received had registration been done properly. The Authors Guild credited Macmillan for “stepping up” but noted that as of mid-2026, no other publisher had announced a similar program.7Authors Guild. What Authors Need to Know About the Anthropic Settlement Authors uncertain about their registration status can check with their publisher and the U.S. Copyright Office.18Jane Friedman. Did Your Publisher Fail to Register Copyright for Your Work
Current Status and When Payments Are Expected
Judge Alsup moved to inactive status during the case, and Judge Araceli Martínez-Olguín took over. She heard the fairness hearing on May 14, 2026, did not rule from the bench, and has since declined to grant final approval, asking for supplemental filings on objectors’ concerns about fees and compensation.17Ars Technica. Authors Fight for Higher Payouts From Anthropic’s $1.5B Copyright Settlement
Initial payments to class members are estimated to begin around August 10, 2026, assuming the settlement is approved and any appeals are resolved.6Anthropic Copyright Settlement. Frequently Asked Questions Until final approval is entered and any appellate window closes, no money moves.