Filing: Anthropic has agreed to pay $1.5B plus interest to resolve an authors' copyright lawsuit over the company's downloading of millions of pirated books

Anthropic PBC will pay at least $1.5 billion plus interest to resolve an authors' copyright lawsuit over the AI company's downloading …

Bloomberg 2025-09-06

Context & Ripple Effects

The reported agreement follows Anthropic's earlier settlement in the authors' class action involving works from two pirate databases. It converts a dispute over training-data acquisition into a defined, unusually large financial exposure for the company.

The agreement still faced a judicial process: a court later preliminarily approved the $1.5 billion settlement. That sequence matters because it distinguishes an announced deal from a fully completed resolution and highlights how class-wide AI copyright settlements can receive close scrutiny.

First-order effects

Anthropic takes on a $1.5 billion-plus-interest settlement commitment, while covered authors gain a route to compensation for the alleged use of their books.
The agreement moves this particular class action away from a merits ruling over the alleged downloading, subject to court approval and the settlement process.

Second-order effects

Other AI developers facing claims over training materials will have to treat provenance of acquired datasets as a potentially material legal and financial issue, not merely a compliance concern.
Publishers, authors and dataset intermediaries gain a clearer incentive to seek negotiated payment or licensing arrangements rather than rely on litigation alone.

Third-order effects

If similar cases produce large settlements, AI training-data strategy may shift toward auditable sourcing and commercial licensing, raising the relative cost of building general-purpose models.
The outcome could help establish class actions as a mechanism for allocating value from past AI data use, though the effect on legal standards remains uncertain because a settlement does not decide the underlying copyright questions.

The trend: This is a data point in the commercialization of AI training data, as rights holders seek compensation and developers face pressure to document lawful content supply.

Discussion

@adameisgrau Adam Eisgrau on x
FOUR KEY TAKEAWAYS from the newly unveiled Bartz v @AnthropicAI proposed settlement include: 1) Plaintiffs see themselves as underdogs in the case, staring down the specter of past cases in which fair use prevailed on trial: [image]
@morqon Morgan on x
very good of anthropic to donate 12% of their latest raise to a writers' fund
@natolambert Nathan Lambert on x
The weirdest VC subsidizing of our time, 10% of the Anthropic series F goes to writers [image]
@peterhndrsn Peter Henderson on x
The terms of Anthropic's settlement w/book authors just came out. 💰$1.5B to authors in libgen (Books3 corpus)! Interestingly, this is ~$3k per book, close to the terms that HarperCollins allegedly gave to authors for their books ($2.5k). Consensus price forming? [image]
@emostaque Emad on x
Anthropic class action settlement for using torrented copyrighted downloads for model training $1.5 billion (!) Over double the statutory amount if they had lost the case in jury trial 🤔 < 1% of their valuation which is maybe why they settled 🤷🏾 https://storage.courtlistener.com/…
@eriqgardner Eriq Gardner on x
Lawyers would get 25% cut. A $400 million payday ain't bad. Distribution and opt-outs will be interesting. Apparently, the deal cancels upon a certain (sealed) opt-out threshold.
@brianstelter Brian Stelter on x
$3,000 per book....
@willoremus Will Oremus on x
Breaking: In landmark agreement, AI firm Anthropic will pay $1.5 billion to settle a copyright lawsuit brought by book authors and publishers. Story link to follow.
@nkjemisin N. K. Jemisin on bluesky
Busy yesterday so I missed that Anthropic had settled. Figures. LLMs have violated thousands of copyrights; they *knew* it would kill them if it went to trial. Anyway, the Authors Guild has some useful info here: authorsguild.org/news/what-au...
@kateheartfield.com Kate Heartfield on bluesky
A bit I missed in the Authors Guild explainer earlier is that they say the settlement goes to both beneficial and legal copyright owners, so the publishers may get some of the money. So publishers who neglected to register (ie did not staff properly to make that happen) screwed …
@michellewitte Michelle Witte on bluesky
I'm seeing a lot of inaccurate info about the Anthropic settlement being passed around as fact, so here's a good basic explainer from the Author's Guild that I highly recommend reading so you understand it better if you're potentially part of the class: authorsguild.org/news/what…
@jasonsanford Jason Sanford on bluesky
Been going through the $1.5 billion Anthropic settlement. First, the settlement is for $3,000 per work for 500,000 works. — Despite what this NYTimes article states, it is not for 500,000 authors. @nmamatas.bsky.social pointed this out and I confirmed it. 1/ — www.nytimes.c…
@eff.org @eff.org on bluesky
A federal judge ruled that fair use allowed Anthropic to train Claude on copyrighted books—but decided to send misguided “piracy” claims to trial. Facing copyright's ridiculous statutory penalties, Anthropic agreed to pay a record-breaking $1.5 billion to settle. www.nytimes.com…
@kevinbaker @kevinbaker on bluesky
i basically agree with the transformative use argument (and think the implications of it not being considered transformative use would have disastrous implications for libraries, accessibility programs, etc.) but the last line of this is just so goofy and stupid. — www.nytimes.…
@carnage4life Dare Obasanjo on bluesky
You win some and you lose some. While Anthropic won the copyright case based on training their AI from copies of books they bought, they've just settled a case based on training AI on pirated books. — The settlement is for $1.5B which works out to about $3,000 per book.
@stinasdemons.com @stinasdemons.com on bluesky
$3,000 for each copyrighted work that Anthopic pirated. The class action settlement will apply to approximately 500,000 works. I think the real number is much higher. And don't get me started on all the artists' work “AI” has stolen...
@burrata Benjamin Tausig on bluesky
I guess a lot of academics (and others) are about to learn what it feels like to be paid for their writing? — www.nytimes.com/2025/09/05/t...
@chadlavin @chadlavin on bluesky
The CEOs admit that their tech is literally impossible without widespread theft. This just establishes how much they have to pay in order to keep breaking the law. — www.nytimes.com/2025/09/05/t...
@tachikoma.elsewhereunbound.com @tachikoma.elsewhereunbound.com on bluesky
i'm guessing that a lot of people cheering on this decision have also sailed the high seas with the black flag. and given the demographics, many will have even used the same resource, libgen, to sate their curiosity for free.
@food4dogs @food4dogs on bluesky
COPYRIGHT — “This landmark settlement far surpasses any other known copyright recovery. It is the first of its kind in the AI era.” — Anthropic is not admitting any wrongdoing or liability.
@bcdreyer.social Benjamin Dreyer on bluesky
“That must be a record for a victimless crime that isn't even a crime,” comments person I just blocked.
@adampknave.com Adam P. Knave on bluesky
For anyone who thinks that is a lot of money consider that their last round of funding was for 13B, and that normally big copyright infringement costs like 150k per, not the 3k per they are gonna pay. A fine is a price. For 1/10th of their funding they will keep and use this da…
@damonberes.com Damon Beres on bluesky
Really interesting decision here ... worth underscoring (as Kate does in the article) that contrary to the rhetoric of the plaintiffs' attorney the decision has to do with piracy, not AI training. [embedded post]
@kalihays Kali Hays on bluesky
Largest settlement in all of copyright litigation, and yet, $3k to each author that had the work stolen for for profit use seems so incredibly small. And the judge sided with Anthropic on fair use, finding that the training itself was transformative. Idk if this even counts as …
@ponypalpokey @ponypalpokey on bluesky
Some may see this as a $1.5B fine. Others might see it as the fastest way to “license” everything ever written EVAR at rock-bottom prices. 🙄
@cheriepriest.com @cheriepriest.com on bluesky
Obviously I'd be thrilled by the unexpected windfall, but until the money meets my bank account, it might as well be imaginary. — (They scraped basically everything I've ever written, and I've been in this industry for 20+ years; the sum would be nontrivial.) — www.reuters.co…
@punkey.org Kasey Kagawa on bluesky
Their case at trial must have been incredibly bad for them to leap at this deal so quickly - they went from “we will never settle, see you in court” to “please dear god get us the fuck out of here” on a dime [embedded post]
@mrose.ink Meredith Rose on bluesky
Unfortunately, I expect that the fact they won a pretty resounding fair use victory is going to be lost in much of the coverage. They lost on downloading & storing the LibGen dataset (straight infringement!), but the act of training on copyrighted material (+ making their own eb…
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