# Sony Music, Warner Chappell Sue Anthropic for Alleged Unauthorized Song Training

> Two of the biggest names in music publishing, Sony Music Publishing and Warner Chappell, have sued Anthropic, accusing it of training Claude on tens of thousands of copyrighted songs without permission. The complaint names CEO Dario Amodei and co-founder Benjamin Mann personally and seeks statutory damages of up to $150,000 for each work the labels say was willfully infringed, a figure that could climb into the billions. The publishers allege Anthropic did not just scrape licensed lyric sites like Musixmatch and LyricFind, but pulled lyrics and sheet music from pirate repositories including Library Genesis and the Pirate Library Mirror. Anthropic counters that training on such material is transformative fair use, and says the suit rehashes claims already contested in other cases. It lands as courts across the industry wrestle with the same question about text, images, and now music. A ruling against Anthropic on the piracy sourcing, in particular, could force AI labs to prove where their training data actually came from, not just how they used it.

_Section: [Daily AI Updates](https://www.wortins.com/daily-ai) · Source: Fortune · Published Thursday, September 3, 2026_

## Wortins' read

Two of the biggest names in music publishing, Sony Music Publishing and Warner Chappell, have sued Anthropic, accusing it of training Claude on tens of thousands of copyrighted songs without permission. The complaint names CEO Dario Amodei and co-founder Benjamin Mann personally and seeks statutory damages of up to $150,000 for each work the labels say was willfully infringed, a figure that could climb into the billions. The publishers allege Anthropic did not just scrape licensed lyric sites like Musixmatch and LyricFind, but pulled lyrics and sheet music from pirate repositories including Library Genesis and the Pirate Library Mirror. Anthropic counters that training on such material is transformative fair use, and says the suit rehashes claims already contested in other cases. It lands as courts across the industry wrestle with the same question about text, images, and now music. A ruling against Anthropic on the piracy sourcing, in particular, could force AI labs to prove where their training data actually came from, not just how they used it.

## Source

[Read the full story at Fortune](https://fortune.com/2026/09/01/anthropic-warner-sony-music-songs-lawsuit/)

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