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インシデント 1657: Anthropic Allegedly Copied Copyrighted Song Lyrics Without Permission to Train Claude

概要: Music publishers alleged that Anthropic copied copyrighted song lyrics without permission to train Claude and that Claude reproduced protected lyrics in its outputs. Anthropic denied infringement and has argued that its training use is fair use. Publishers alleged that the conduct deprived rightsholders and songwriters of licensing control and revenue and undermined markets for licensed lyrics.
Editor Notes: Timeline notes: Later-disclosed Anthropic records showed Claude reproducing copyrighted song lyrics in third-party responses by 09/27/2023, and music publishers sued Anthropic on 10/18/2023 alleging unauthorized copying of lyrics for Claude training and reproduction in outputs. In 2025, Anthropic agreed to maintain lyric-output guardrails, while a federal judge denied the publishers' preliminary-injunction request without resolving whether the training use constituted fair use. In 2026, BMG and Round Hill brought additional related claims, and the original publishers and Anthropic advanced competing summary-judgment arguments over whether the alleged training use was infringing or protected by fair use. The incident ID was created 08/25/2026.

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Alleged: Anthropic , Large language model developers と Chatbot developers developed an AI system deployed by Anthropic と AI service providers, which harmed Universal Music Group , Songwriters , Round Hill Music , publishers , Musicians , Music publishers , Intellectual Property rights holders , Copyright holders , Concord Music Group , BMG Rights Management と ABKCO Music.
関与が疑われるAIシステム: Large language models , Claude AI models , Claude と Chatbots

インシデントのステータス

インシデントID
1657
レポート数
10
インシデント発生日
2023-09-27
エディタ
Daniel Atherton

インシデントレポート

レポートタイムライン

+1
Music publishers sue AI company Anthropic over song lyrics
Anthropic asks court to dismiss music publishers' AI claimsAnthropic reaches deal on AI 'guardrails' in lawsuit over music lyricsAnthropic wins early round in music publishers' AI copyright caseMusic publishers fend off Anthropic's bid to dismiss some AI copyright claims+1
BMG sues Anthropic for using Bruno Mars, Rolling Stones lyrics in AI training
Anthropic seeks pivotal court win in music publisher lawsuit over AI training+1
Round Hill is suing Suno and Anthropic for up to $1B apiece. It isn’t looking to settle.
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Music publishers sue AI company Anthropic over song lyrics

Music publishers sue AI company Anthropic over song lyrics

reuters.com

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Anthropic asks court to dismiss music publishers' AI claims

Anthropic asks court to dismiss music publishers' AI claims

reuters.com

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Anthropic reaches deal on AI 'guardrails' in lawsuit over music lyrics

Anthropic reaches deal on AI 'guardrails' in lawsuit over music lyrics

reuters.com

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Anthropic wins early round in music publishers' AI copyright case

Anthropic wins early round in music publishers' AI copyright case

reuters.com

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Music publishers fend off Anthropic's bid to dismiss some AI copyright claims

Music publishers fend off Anthropic's bid to dismiss some AI copyright claims

reuters.com

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BMG sues Anthropic for using Bruno Mars, Rolling Stones lyrics in AI training

BMG sues Anthropic for using Bruno Mars, Rolling Stones lyrics in AI training

reuters.com

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US music publishers suing Anthropic make their case against AI 'fair use'

US music publishers suing Anthropic make their case against AI 'fair use'

reuters.com

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Anthropic seeks pivotal court win in music publisher lawsuit over AI training

Anthropic seeks pivotal court win in music publisher lawsuit over AI training

reuters.com

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Round Hill is suing Suno and Anthropic for up to $1B apiece. It isn’t looking to settle.

Round Hill is suing Suno and Anthropic for up to $1B apiece. It isn’t looking to settle.

musicbusinessworldwide.com

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5 things to know about Round Hill’s Suno and Anthropic lawsuits: model weights, extraction tools, and a $75M number

5 things to know about Round Hill’s Suno and Anthropic lawsuits: model weights, extraction tools, and a $75M number

musicbusinessworldwide.com

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Music publishers sue AI company Anthropic over song lyrics
reuters.com · 2023

(This Oct. 18 story has been refiled to correct Concord's corporate name in paragraph 1)

Music publishers Universal Music (UMG.AS), opens new tab, ABKCO and Concord sued artificial intelligence company Anthropic in Tennessee federal court o…

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Anthropic asks court to dismiss music publishers' AI claims
reuters.com · 2024

Artificial-intelligence company Anthropic asked a California federal court on Thursday to dismiss some copyright claims brought by a group of music publishers over the alleged misuse of song lyrics to train its AI-powered chatbot Claude.

An…

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Anthropic reaches deal on AI 'guardrails' in lawsuit over music lyrics
reuters.com · 2025

Artificial intelligence company Anthropic has reached an agreement with Universal Music (UMG.AS), opens new tab and other music publishers over its use of "guardrails" to keep its chatbot Claude from generating copyrighted song lyrics, reso…

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Anthropic wins early round in music publishers' AI copyright case
reuters.com · 2025

Artificial intelligence company Anthropic convinced a California federal judge on Tuesday to reject a preliminary bid to block it from using lyrics owned by Universal Music Group (UMG.AS), opens new tab and other music publishers to train i…

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Music publishers fend off Anthropic's bid to dismiss some AI copyright claims
reuters.com · 2025

Artificial intelligence company Anthropic lost a bid on Monday to dismiss parts of a copyright infringement lawsuit brought by music publishers over Anthropic's alleged misuse of their song lyrics in its AI training.

U.S. District Judge Eum…

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BMG sues Anthropic for using Bruno Mars, Rolling Stones lyrics in AI training
reuters.com · 2026

Music company BMG Rights Management has sued artificial intelligence company Anthropic in California federal court for allegedly using its copyrighted lyrics ‌to train the large language models powering its Claude chatbot.

BMG said in the c…

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US music publishers suing Anthropic make their case against AI 'fair use'
reuters.com · 2026

Music publishers Universal Music Group (UMG.AS), opens new tab, Concord and ABKCO have asked a judge in California to rule that U.S. copyright law does not insulate artificial intelligence startup Anthropic from ​liability for copying their…

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Anthropic seeks pivotal court win in music publisher lawsuit over AI training
reuters.com · 2026

April 21 (Reuters) - Artificial intelligence company Anthropic has asked a California federal court to rule in its favor in a copyright lawsuit brought by music publishers Universal Music Group (UMG.AS), opens new tab, Concord ‌and ABKCO, a…

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Round Hill is suing Suno and Anthropic for up to $1B apiece. It isn’t looking to settle.
musicbusinessworldwide.com · 2026

Round Hill Music has filed copyright infringement lawsuits against Suno and Anthropic -- and says it has no intention of settling either one.

The complaints were filed on Monday (August 17) in the US District Court for the Northern District…

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5 things to know about Round Hill’s Suno and Anthropic lawsuits: model weights, extraction tools, and a $75M number
musicbusinessworldwide.com · 2026

Round Hill Music filed two copyright complaints last week, one against Suno and data-scraping firm Bright Data, the other against Anthropic. Both are in the US District Court for the Northern District of California.

MBW reported the headlin…

バリアント

「バリアント」は既存のAIインシデントと同じ原因要素を共有し、同様な被害を引き起こし、同じ知的システムを含んだインシデントです。バリアントは完全に独立したインシデントとしてインデックスするのではなく、データベースに最初に投稿された同様なインシデントの元にインシデントのバリエーションとして一覧します。インシデントデータベースの他の投稿タイプとは違い、バリアントではインシデントデータベース以外の根拠のレポートは要求されません。詳細についてはこの研究論文を参照してください
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インシデント発生日:
2026-08-17

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