Anthropic agrees to pay $1.5 billion to settle authors’ claims

Anthropic agreed on 5 September 2025 to settle the piracy claims left standing in Bartz v. Anthropic, paying about $3,000 a work for roughly 500,000 books, some $1.5 billion in total. Judge Alsup granted preliminary approval on 25 September.

Why it mattered Described by the parties as the largest disclosed copyright recovery in American history, it set a number that other developers facing training-data suits had to weigh against continued litigation.

Corrections

  • 2026-09-13: Added the missing publication date (2025-09-26) for the Authors Guild source.

  • 2026-09-26: Removed “and destroying the pirated copies” from the summary. Neither cited source could be re-verified for that term (the Post page is unreachable) and the Authors Guild explainer does not mention it; the $1.5 billion figure, the per-work math, and the preliminary approval are all confirmed. The “largest disclosed copyright recovery” characterization is corroborated independently (the Authors Guild called it the largest recovery in US copyright litigation history).