Publishers Back Suit Against Anthropic's Fair-Use Defense

On March 30, 2026 major music and publishing trade groups including the RIAA, NMPA, AAP and Authors Guild filed amicus briefs in the Northern District of California backing music publishers' motion for partial summary judgment in Concord v. Anthropic. The briefs argue Anthropic's unlicensed scraping of song lyrics and texts causes market harm, citing licensing deals, Deezer data on 60,000+ synthetic tracks per day, and Anthropic's $380 billion valuation.
Scoring Rationale
Official amicus briefs from major industry groups raise the legal stakes and cite concrete data and licensing deals, giving high novelty, scope, credibility, and relevance. Actionability was rated slightly lower because the news is legal pressure rather than a technical change. No freshness penalty applies; the filings were made March 30, 2026.
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Sources
- Read OriginalRIAA, NMPA, and more file amicus brief backing UMG, Concord and ABKCO in original Anthropic case, arguing unlicensed copying by AI firms is ‘inexcusable’musicbusinessworldwide.com


