2 September 2026
Anthropic adds copyright restrictions to Claude chatbot
First reported
Simon Willison ran this on .
- Claude, Anthropic's AI chatbot, now refuses to reproduce song lyrics, poems, and book passages in full or partial form.
- The system also declines to provide reworded versions of copyrighted content within the same conversation.
- The restriction follows lawsuits from Sony Music Publishing and Warner Chappell Music, who claim Anthropic trained the model on song lyric databases.
How it was covered
Simon WillisonDaily notes and links
The new system prompt forbids Claude from reproducing song lyrics, poems, or book passages in full or in part, and declines reworded versions within a conversation. This restriction appears timed to Sony Music Publishing and Warner Chappell's lawsuit against Anthropic for training on song lyric databases.