The money isn’t the part I’d worry about. Sony and Warner say damages are just an operating cost for Anthropic, and they’re right — the $1.5 billion book settlement bought a line item, not a precedent. What they actually want is inspection of the training data and removal of everything they hold rights to. That’s the ask with teeth.
I build on Claude daily, and this is the first suit where the remedy could change the model rather than the balance sheet. Nothing to do today. But if you’re leaning on a hosted LLM for anything load-bearing, this is the argument for keeping your prompts and evals portable — so a model that comes back different is a migration, not a rewrite. My self-hosted stuff suddenly looks less like a hobby.
The story — Sony Music Publishing and Warner Chappell Music sued Anthropic last Friday in the Northern District of California, joining Universal, which has litigated since 2023. The four-count complaint centers on song lyrics Claude reproduces via crafted prompts, seeking up to $150,000 per work plus $25,000 where rights-management metadata was stripped, and naming Dario Amodei and Benjamin Mann personally. (Source)