Concord Music Group, Inc. et al. v. Anthropic PBC

rights policy item·copyright litigation·announced

Music publishers allege copyright infringement involving song lyrics used with Anthropic's AI systems.

Verified facts

Official site	https://cand.uscourts.gov/cases-e-filing/cases/524-cv-03811-ekl/concord-music-group-inc-et-al-v-anthropic-pbc ↗
Geography	United States
identifier	5:24-cv-03811-EKL; originally 3:23-cv-01092
parties	Concord Music Group and other publishers; Anthropic PBC
item type	copyright_litigation
confidence	high
identifier	5:24-cv-03811-EKL; originally 3:23-cv-01092
filing date	2023-10-18
jurisdiction	United States
adoption date	unknown
affected works	copyrighted lyrics
current status	pending
effective date	unknown
affected models	Claude
canonical title	Concord Music Group, Inc. et al. v. Anthropic PBC
confidence basis	Primary document reviewed; status language is conservative.
enforcement date	unknown
affected datasets	allegedly copied song lyrics
issuing authority	U.S. District Court for the Northern District of California
primary documents	https://cand.uscourts.gov/cases-e-filing/cases/524-cv-03811-ekl/concord-music-group-inc-et-al-v-anthropic-pbc
unresolved questions	Merits, fair-use defenses, and remedies.
affected entity types	music publishers; AI developers; songwriters
affected organizations	Concord Music Group; Anthropic

related litigation	Concord Music Group, Inc. et al. v. Anthropic PBC et al. (2026 action) 2026-01-28 — now
has procedural update	Concord v. Anthropic Preliminary-Injunction Order 2025-03-25 — now