SMRTR AISep 6, 2026Hacker News

Claude's new system prompt doesn't want to reproduce song lyrics

SMRTR summary

Anthropic updated Claude's system prompt for Fable 5.1, adding new copyright rules likely triggered by lawsuits from Sony Music Publishing and Warner Chappell. Claude now refuses to reproduce song lyrics, poems, or copyrighted characters, and redirects drug questions to harm-reduction sites like dancesafe.org, with a knowledge cutoff of June 2026.

SMRTR provides this summary for quick context. The original article belongs to Hacker News.

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