Sony and Warner attach a $150,000 per-work price to Anthropic's training corpus

Most vendor security questionnaires have a field for training data sources, and most answers to it contain no nouns. This week's complaint gives that field a unit price: Sony Music Publishing and Warner Chappell Music want $150,000 for each work they say was infringed ^[3]. Once a rate like that is in public, the only variable left is how many works someone can show you hold.

So do the division. Anthropic's authors settlement, the largest copyright settlement in American legal history ^[6], works out to 10,000 units at the publishers' rate ^[10]. Sony and Warner put their own count in the tens of thousands ^[3]; read that as 20,000 to 99,000 works and the same rate yields $3 billion to nearly $15 billion ^[12]. The floor of that range is what Universal Music Group, Concord and ABKCO are already seeking as of January 2026, in a case they filed in October 2023 ^[7][11].

Teams shipping a generative feature tell themselves provenance is the model vendor's problem and the contract handles it. What these filings describe happens earlier than any contract: acquisition of the corpus, allegedly over BitTorrent, down to individual lyric and sheet music files for songs including "Hallelujah" and "Livin' On a Prayer" ^[4]. Sony and Warner call it "one of the largest and most blatant ongoing thefts of intellectual property in history" ^[2]. The reason a rate can be quoted at all is that copies are countable, while output similarity is an argument.

The test that travels to your own stack has two axes. First, whether you can list the works in each corpus your feature depends on, the works and not the source. Second, whether a named party pays when that list turns out longer than you thought. Listed works with a named payer is a licence you can put in a budget. Listed works with nobody named is a negotiation you still owe. Unlistable works with a named payer means your exposure sits on someone else's balance sheet, and their filings are worth an afternoon. Unlistable works and nobody named is the box these complaints are aimed at.

PCMag, which reported the filing, notes that its own parent Ziff Davis sued OpenAI in April 2025 over the training and operation of its systems ^[9], so nobody narrating this is a neutral party. That is a reason to price the risk rather than argue it out in a standup. If the answer to the first axis is a vendor's name instead of a list, the box has already been picked for you.