Sony Music and Warner Chappell Sue Anthropic Over Alleged Copyright Infringement in AI Training
Quick Look
Sony Music Publishing and Warner Chappell have filed a lawsuit in California against Anthropic, alleging the AI startup illegally used tens of thousands of copyrighted song lyrics to train its Claude models, seeking damages that could reach billions of dollars.
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Why It Matters
Anthropic has faced multiple copyright lawsuits, including a recent settlement with authors for $1.5 billion, and legal challenges from Universal Music Group and Concord Music Group. The company is preparing for a potential stock market listing that could value it at $2 trillion.
All AI wants for Christmas is a vast back catalogue of songs without paying for it, according to a multibillion-dollar lawsuit against the startup behind the Claude chatbot.
Sony Music Publishing and Warner Chappell, music publishers who manage the copyright of songs on behalf of songwriters and composers, are seeking damages for alleged misuse of âtens of thousandsâ of copyrighted works by Anthropic.
The compositions include Mariah Careyâs All I Want for Christmas is You, Ainât No Mountain High Enough, originally performed by Marvin Gaye and Tammi Terrell, and Survivorâs Eye of the Tiger.
The plaintiffs claim they are victims of âone of the largest and most blatant ongoing thefts of intellectual property in historyâ.
The lawsuit, filed in a California court, targets Anthropic and its chief executive, Dario Amodei, as well as co-founder Benjamin Mann. It alleges the defendants breached copyright law by âtorrenting, scraping and downloadingâ lyrics from copyrighted works to train its family of Claude AI models â as well as reproducing those lyrics in responses to usersâ prompts.
It claims that Mann and Anthropic downloaded at least 7m copies of books from pirate websites, including the lyrics and sheet music to songs such as Bon Joviâs Livinâ on a Prayer and Leonard Cohenâs Hallelujah.
The figures are from a recent copyright case against Anthropic brought by US authors which the company settled for $1.5bn.
The lawsuit, filed on 28 August, was first reported by trade publication Music Business Worldwide. Other songs allegedly having their copyright infringed included Mark Ronsonâs Uptown Funk and Katy Perryâs California Gurls.
It also claims that Anthropic acquired copies of songs in other ways including scraping lyrics from legal sites like Musixmatch and LyricFind, and datasets on archive sites such as Common Crawl. In another section of the claim, the publishers allege that Anthropic stripped identifying information from songs while processing the texts, which denied copyright owners âvaluable attributionâ to their work.
âDefendants specifically elected to harvest unauthorized copies of Music Publishersâ works so that they would not have to pay Music Publishers a licensing fee to use their works in AI training and development,â said the plaintiffs.
The music publishers are seeking damages that could run into billions of dollars, based on a claim of up to $150,000 per infringed piece of work and $25,000 for each removal or alteration of identifying data.
The suit implies at least 20,000 works are involved in the suit, referring to the unlawful copying of âtens of thousands of Music Publishersâ copyrighted musical compositionsâ.
Ed Newton-Rex, a UK-based composer and campaigner for protecting artistsâ copyright, said he was ânot surprisedâ that rights holders were defending themselves against a company with a âhistory of downloading and training their AI models on huge librariesâ.
Alongside the authorsâ lawsuit, Anthropic has also faced claims from Universal Music Group and Concord Music Group.
In a separate case this month, AI music generator Suno lost a copyright infringement case against German licensing agency GEMA, which alleged illegal use of songs including Boney Mâs Daddy Cool to train its technology.
A spokesperson for Anthropic, which is preparing for a stockmarket listing that could value the company at $2tn, said: âWe disagree with the publishersâ claims and we intend to defend ourselves robustly in court.â
What to Watch
AI outlook â possibilities, not facts
Anthropic will settle the lawsuit before trial to avoid prolonged litigation and reputational damage
Likely · Within months
The case will set a legal precedent requiring AI companies to obtain licenses for copyrighted training data
Possible · Within years
Open Questions
- What specific songs were used in Anthropic's training data?
- How will the court determine damages for copyright infringement in AI training?
- Will Anthropic settle or proceed to trial?
- How might this case affect future AI training practices?







