A Techmeme item summarizing Tim Ingham’s report for Music Business Worldwide says Sony Music and Warner Chappell sued Anthropic, Dario Amodei and Benjamin Mann. The item says the lawsuit alleges that tens of thousands of copyrighted songs were used to train Claude’s large language models. The supplied feed text also references Sony Music Publishing and Warner Chappell Music, but the excerpt is truncated. The supplied, truncated Techmeme item available here does not state the court, the damages sought, the exact works at issue, or whether Anthropic has responded. It also does not state how the publishers say the songs were obtained or incorporated into training data. For now, the supported material fact is narrow: Techmeme’s item says Sony Music and Warner Chappell have brought a lawsuit alleging copyrighted songs were used to train Claude’s LLMs. Who benefits: Too early to tell from the supplied item. Who's exposed: Anthropic is directly named in the reported lawsuit, along with Dario Amodei and Benjamin Mann, according to the Techmeme item.