Music Copyright AI Lawsuits: Suno, Udio, and Anthropic

Music copyright AI lawsuits are now spread across at least a dozen active cases in U.S. and European courts, and the map in mid-2026 looks like this: Warner Music Group and Universal Music Group have settled with both Suno and Udio and are moving to licensed AI platforms, Sony Music is still litigating against both companies, music publishers are pressing a fair-use fight and a separate $3 billion piracy complaint against Anthropic, independent artists have filed class actions, and German and Danish rights groups have opened a European front. No court has yet issued a definitive ruling on whether training a generative music model on copyrighted recordings is fair use.

The Cases Against Suno and Udio

On June 24, 2024, Sony Music, Universal Music Group, and Warner Records filed coordinated copyright infringement suits against Suno in the U.S. District Court for the District of Massachusetts and against Udio, formally Uncharted Labs, in the Southern District of New York.¹ The complaints alleged mass, unlicensed copying of copyrighted sound recordings to train the companies’ AI music generators and sought declarations of infringement, injunctions, and damages.

Both startups answered in August 2024 by invoking fair use. Suno argued that copying a protected work as part of an invisible back-end process to create a non-infringing new product is fair use. Udio took a similar line, characterizing its process as mining recordings for patterns in musical styles rather than copying anyone’s property, and calling that “a quintessential fair use.”² Since then the cases have split: two of the three major labels settled, and Sony is still litigating against both.

Settlements and the Pivot to Licensed Platforms

Udio Settles With Universal and Warner

Universal Music Group settled with Udio in October 2025, and Warner Music Group followed a week later in November 2025.³ Under the UMG deal, the two companies plan to launch a subscription-based AI music creation and streaming platform in 2026, trained exclusively on authorized and licensed music.⁴ UMG artists can opt in and choose which tools they participate in, including features letting users create music in their style or use their voices, with compensation for both training and outputs.⁵ Udio’s existing product has been modified with fingerprinting and filtering safeguards, and user creations are kept in a controlled environment during the transition.⁶

Suno Settles With Warner

Warner Music Group settled with Suno on November 25, 2025.⁷ Suno will phase out its current AI models and roll out new ones trained on licensed music starting in 2026.⁸ Warner artists and songwriters can opt in to allow use of their names, images, likenesses, voices, and compositions in AI-generated music, with full control over whether and how they participate.⁹ As part of the deal, free-tier users lost the ability to download songs off the platform, which Warner has described as a step to limit AI-generated tracks from flooding streaming services.

Sony’s Ongoing Fight With Suno and Udio

Sony Music is the only major label still litigating against either company.¹⁰¹¹¹²¹³

The Suno case before Chief Judge F. Dennis Saylor IV in Massachusetts has produced the louder discovery fight. UMG and Sony filed a motion on May 21, 2026, to add 61,026 copyrighted sound recordings to the complaint, up from the original 560. The labels identified those tracks through audio fingerprinting after discovery revealed Suno had trained its models on millions of copyrighted recordings.¹² Suno opposes the expansion, arguing it would effectively restart the case and delay resolution of its fair-use defense.¹⁴ The labels have proposed that the court address fair use on summary judgment before completing ownership discovery on the new works. A scheduling order currently sets the deadline for dispositive motions at January 8, 2027.

DMCA Circumvention Claims

The labels have also accused Suno of violating the Digital Millennium Copyright Act by circumventing YouTube’s “rolling cipher” content-protection system to rip audio for training.¹⁵ Suno counters that the rolling cipher is a copy control rather than an access control, and that the DMCA only prohibits circumventing access controls; because YouTube streams publicly on demand, the statute should not apply. A related case, Yout v. RIAA, is on appeal in the Second Circuit and could clarify whether stream-ripping tools circumvent access controls. Suno and Udio have filed an amicus brief arguing the district court’s reading was too broad.¹⁶

Music Publishers vs. Anthropic

A parallel front targets Anthropic, maker of the Claude chatbot, over the reproduction of copyrighted song lyrics. The original 2023 lawsuit involves lyrics from at least 500 songs by artists including Beyoncé, the Rolling Stones, and the Beach Boys.¹⁷

In March 2025, U.S. District Judge Eumi Lee denied the publishers a preliminary injunction, finding they had not shown Anthropic’s use was currently undercutting the licensing market for lyrics.¹⁸ The dispute has escalated since. In March 2026, Universal Music, Concord, and ABKCO asked Judge Lee to reject Anthropic’s fair-use defense before trial, calling the evidence of Claude reproducing copyrighted lyrics on demand “overwhelming.”¹⁷ Anthropic answered with a 41-page motion for summary judgment in April 2026, calling its use of lyrics “transformative” and asserting that more than 83% of prompts generating lyric reproduction in a six-month sample were produced by the publishers’ own agents testing the system. The publishers have dropped their contributory and vicarious infringement claims. A summary judgment hearing is scheduled for July 15, 2026.¹⁹

The $3 Billion Piracy Complaint

In a separate filing on January 28, 2026, Universal Music, Concord, and ABKCO sued Anthropic again, this time alleging that company co-founders Dario Amodei and Benjamin Mann personally authorized the mass downloading of pirated books containing copyrighted musical compositions via BitTorrent from sites like Library Genesis. The complaint covers over 20,000 songs and could carry more than $3 billion in potential statutory damages.²⁰ The willful infringement claims seek up to $150,000 per work, alongside DMCA penalties of up to $25,000 per violation for the removal of copyright management information.²¹ BMG has filed a related suit. Both new complaints are under a temporary stay in the Northern District of California because of overlapping issues with the original publishers’ case.²²

Where Fair Use Stands

No court has issued a definitive ruling on whether training a generative AI music model on copyrighted recordings is fair use. The most-cited precedent on both sides comes from a book case.

In Bartz v. Anthropic, Judge William Alsup of the Northern District of California issued a split ruling on summary judgment in June 2025. He held that using copyrighted books to train Anthropic’s large language models was “exceedingly transformative” and qualified as fair use, largely because the model’s outputs did not reproduce the original works. In the same order, he ruled that Anthropic’s reliance on pirated copies of those same books was infringing: “Anthropic had no entitlement to use pirated copies for its central library. Creating a permanent, general-purpose library was not itself a fair use excusing Anthropic’s piracy.”²³ The practical takeaway for the music cases: even if training is transformative, piracy as the source of training data strips away the fair-use defense. Music publishers in the $3 billion complaint are leaning heavily on that reasoning.²⁰

The publishers in the lyrics case argue their situation is different from Bartz because Claude has been shown to reproduce specific copyrighted lyrics on demand, not just produce outputs informed by patterns.¹⁷ Judges in the Northern District of California have issued diverging rulings on AI training and fair use, so the picture is far from settled.

Independent Artists and Class Actions

Independent musicians have opened their own front. In mid-2025, country musician Tony Justice and his label 5th Wheel Records filed class actions against both Suno and Udio, seeking to represent all independent artists, songwriters, and producers whose works appeared on streaming platforms since January 1, 2021.²⁴ The suits allege unauthorized use of independent recordings for AI training and seek up to $150,000 per infringed work. A motion-to-dismiss hearing in the Suno class action was scheduled for March 2026.²⁵ The firm representing the class, Loevy + Loevy, has since expanded its campaign, filing similar suits against the owners of Mureka.ai in December 2025 and against Google over its Lyria 3 and ProducerAI products in March 2026.²⁶

Individual artists are suing too. In May 2026, Poseidon Wave Media, the entity behind the instrumental duo The American Dollar, sued Suno in the Southern District of New York, alleging Suno ingested 236 of their sound recordings without permission. The complaint says the duo’s licensing revenue dropped by roughly 80% after Suno’s public launch and seeks up to $150,000 per work, potentially exceeding $35 million.²⁷²⁸

European Cases

Suno is also fighting in Europe. In January 2025, GEMA, Germany’s performing rights organization representing roughly 100,000 composers and publishers, sued Suno in Munich Regional Court, making it the first major AI music copyright case in Europe. An oral hearing was held in March 2026, and a decision is expected by July 31, 2026.²⁹ In November 2025, the Danish rights organization Koda followed in Copenhagen, accusing Suno of committing “one of the biggest thefts in music history.”³⁰

A Related Boundary: Whether AI-Made Music Can Be Copyrighted

These infringement cases are separate from the question of whether AI-generated music can be copyrighted at all, but the two often get conflated. On March 2, 2026, the U.S. Supreme Court declined to hear Thaler v. Perlmutter, a challenge from computer scientist Stephen Thaler after the Copyright Office refused to register an AI-generated image that listed the AI as sole author.³¹³²³³³⁴

Proposed Federal Legislation

Several bills before the 119th Congress would reshape the legal framework the music lawsuits are testing. None have advanced beyond committee referral as of mid-2026.³⁵

CLEAR Act (S. 3813), introduced February 2026 by Senators Adam Schiff and John Curtis, would require AI developers to report every copyrighted work in their training datasets to the Copyright Office at least 30 days before a model’s commercial release, with a $5,000 civil penalty per instance of noncompliance. Endorsers include the RIAA, ASCAP, BMI, the National Music Publishers Association, and SAG-AFTRA.³⁵
NO FAKES Act, a bipartisan bill, would establish a person’s digital likeness as intellectual property, allowing licensing and civil suits against unauthorized AI deepfakes. The Senate Judiciary Committee was scheduled to consider it as of June 2026.³⁶
TRAIN Act would create a mechanism for creators to subpoena AI developers’ training data to determine whether their work was used without a license.³⁵
Protect Working Musicians Act of 2026, introduced May 2026 by Representative Deborah Ross, would let independent artists collectively negotiate compensation with streaming platforms and AI developers without antitrust exposure.³⁷

Dates to Watch in 2026

The summary judgment hearing in the Anthropic lyrics case is set for July 15, 2026.¹⁹ A ruling in the GEMA case against Suno in Munich is expected by July 31, 2026.²⁹ Judge Saylor still must decide whether to allow the labels’ expansion of the Suno complaint, a ruling that could reshape the scope of damages. And the Yout v. RIAA appeal in the Second Circuit could determine whether stream-ripping for AI training violates the DMCA, with direct implications for the circumvention claims against Suno. Sony’s decision to keep fighting both Suno and Udio while the other majors cut deals means the central fair-use question is still headed for a judicial answer.

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RIAA. Record Companies Bring Landmark Cases for Responsible AI Against Suno and Udio
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Silicon Republic. Suno and Udio AI Music Lawsuit Record Labels Copyright Infringement Case
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Reuters. Warner Music Settles With AI Firm Udio, Plans Joint Platform
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Universal Music Group. Universal Music Group and Udio Announce Strategic Agreements for New Licensed AI Music Creation Platform
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Billboard. UMG Udio AI Deal FAQ Artist Payments User Downloads Lawsuit
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Hypebeast. UMG x Udio Settle, Launch Licensed AI Music Platform
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Hollywood Reporter. Warner Music Group Settles AI Infringement Suit With Suno
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BBC. Warner Music and Suno Launch AI Music Partnership
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Suno. WMG Partnership
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Music Business Worldwide. UMG and Sony Seek to Add 61,000 Copyrighted Works to Suno Lawsuit
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Reuters. US Music Publishers Suing Anthropic Make Their Case Against AI Fair Use
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Hollywood Reporter. Anthropic Wins First Round Lawsuit Music Publishers Song Lyrics
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Digital Music News. Anthropic Music Publishers Lawsuit Summary Judgment Motion
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Music Business Worldwide. UMG, Concord, and ABKCO Sue Anthropic for $3bn
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IPWatchdog. Music Publishers File New Piracy Suit Against Anthropic Alleging Mass Torrenting Copyrighted Works
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Copyright Alliance. Bartz v. Anthropic Order
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Music Business Worldwide. Suno and Udio Hit With Class Action Lawsuits From Independent Artists
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The Vocal Market. Every AI Music Lawsuit Tracked
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Loevy + Loevy. Music AI Class Action
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Music Business Worldwide. Suno Sued by Poseidon Wave Media
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Digital Music News. Music Production Duo Sues Suno
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Digital Music News. Stephen Thaler AI Copyright Case
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National Constitution Center. Supreme Court Denies Artificial Intelligence Authorship Claim for Artwork Copyright
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U.S. Copyright Office. Copyright and Artificial Intelligence Part 2: Copyrightability
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Electronic Frontier Foundation. Tell Congress: Just Say No to NO FAKES
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Representative Deborah Ross. Ross Introduces Legislation to Support Independent Musicians