The new Suno lawsuit from Universal Music Group and Sony Music, filed September 18, 2026 in Boston federal court, targets 60,202 sound recordings and a theoretical ceiling of about $9 billion in statutory damages. That is 1.7 times Suno’s $5.4 billion valuation from June. The labels argue Suno’s licensed v6 model still inherits infringement from older models trained on the same data.
The Suno lawsuit is the second copyright case Universal and Sony have brought against the AI music startup. It lands nine days after Suno launched v6, a model it says was trained from scratch without either label’s catalog. According to Music Business Worldwide, the complaint calls v6 “the fruit of the same poisoned tree.”
This is not a song-quality fight. It is a fight over what a licensed AI model has to prove about its own ancestry. The answer will set the price of every AI music company’s data.
What is the new Suno lawsuit about?
The new Suno lawsuit claims that Suno’s v6 models were built with help from earlier models that were trained on unlicensed music. Universal and Sony say that training a new model on the outputs, preference data and distilled knowledge of an infringing model carries the infringement forward, even if no label recordings sit in the new training set.
The complaint’s key line, per Music Business Worldwide: “Training a ‘new’ model on the outputs of an infringing model does not eliminate the infringement; it launders it.”
The labels list v4, v4.5, v4.5+, v5, v4.5-all and v5.5 as models trained on the same unlicensed corpus. They say v6 drew on three channels from those models.
- User preference signals collected from interactions with the older models.
- Knowledge distillation from earlier Suno models into v6.
- YouTube audio pulled with the YT-DLP tool, which the complaint says Suno admitted using on September 1.
The distillation argument will sound familiar. It mirrors the “token theft” logic that Washington applied to Chinese labs in the AI distillation advisory earlier this month. Here, the labels apply it to a company’s own model lineage.
How much could Suno owe UMG and Sony?
On paper, Suno faces up to roughly $9 billion. US copyright law allows statutory damages of up to $150,000 per work for willful infringement, and the labels count 60,202 works. They add a separate claim of up to $2,500 per circumvention of YouTube’s anti-download technology, worth about $150 million across all works.
Those are ceilings, not forecasts. Under 17 U.S.C. § 504(c), the statutory range runs from $750 to $30,000 per work. The $150,000 tier only applies if a court finds the infringement willful.
What are the Suno lawsuit damage scenarios?
The spread between the floor and the headline number is enormous. Here is what the same 60,202 works produce at each statutory tier.
| Scenario | Per work | Total for 60,202 works | vs. $5.4B valuation |
|---|---|---|---|
| Statutory minimum | $750 | $45.2 million | 0.8% |
| Ordinary maximum | $30,000 | $1.81 billion | 33% |
| Willful maximum | $150,000 | $9.03 billion | 167% |
| Anti-circumvention add-on | Up to $2,500 | About $150 million | 3% |
The skeptical read: headline statutory figures in copyright suits are negotiating anchors. Courts rarely award the willful maximum across tens of thousands of works. The real number sits where a settlement lands, and the labels’ own deal history suggests that is the point of the exercise.
Why is Suno being sued again after licensing deals?
Suno is being sued again because only some of the major labels have signed with it. Warner Music Group settled in November 2025, and BMG and Believe followed in 2026. Universal and Sony have not signed. They argue those very deals prove a licensing market exists that Suno ignored while building its older models.
The Warner settlement, reported by Forbes, included Warner selling its Songkick concert-discovery platform to Suno. Suno also agreed to restrict downloads to paid accounts and to launch new licensed models.
The complaint turns those deals against Suno. The labels say Suno “cannot credibly deny the existence of a market in which it is now a repeat, paying participant.” Suno has said its revenue sharing is not in exchange for training. The labels call that “self-serving.”
Suno lawsuit timeline: from 560 works to 60,202
| Date | Event |
|---|---|
| June 2024 | UMG and Sony file the first case against Suno over 560 works |
| October 2025 | Universal settles with rival AI music startup Udio |
| November 2025 | Warner settles with Suno; sells Songkick to Suno |
| June 2026 | Suno raises $400M+ at a $5.4B valuation |
| August 12, 2026 | BMG licensing deal with Suno |
| August 18, 2026 | Judge F. Dennis Saylor IV bars labels from adding 61,026 recordings to the first case |
| September 8, 2026 | Believe partnership announced |
| September 9, 2026 | Suno launches v6 and retires older models |
| September 18, 2026 | UMG and Sony file the second suit over 60,202 recordings |
| September 30, 2026 | Discovery closes in the first case |
Sources: Music Business Worldwide, Forbes, The Hollywood Reporter, Yahoo Finance.
The second suit exists because of the August ruling. Judge Saylor refused to let the labels bolt 61,026 recordings onto the 2024 case, which left room for a fresh complaint. That makes this filing procedural as much as strategic.
How did the labels find their songs in Suno’s training data?
The labels say they identified their works in Suno’s training data during discovery in the first case. Audio fingerprinting company Audible Magic helped match Universal and Sony recordings inside the data Suno used, according to Music Business Worldwide. That evidence is what lifted the count from 560 works to more than 60,000.
A July data breach, reported by Engadget, also indicated that Suno had scraped YouTube Music, Deezer and Genius. Suno had previously defended that scraping as fair use.
Fingerprinting matters for the whole sector. If rights holders can reliably audit a training set, the “we can’t say what we trained on” defense gets weaker for every generative AI company, not just music startups.
What does Suno say?
Suno rejects the claims. The company told Engadget the complaint is “fundamentally flawed on both the facts and the law.” It says v6 was built from licensed content, community creations, preference signals and its team’s accumulated learnings, and it continues to argue that training on copyrighted material is fair use.
Suno’s chief product officer, Jack Brody, said v6 “was trained entirely from scratch, from the ground up” on data that excluded Universal and Sony material, per Music Business Worldwide.
Note the gap between the two positions. Suno says no label recordings went into v6. The labels do not really dispute that. They dispute whether preference data and distilled knowledge from older models count as a clean start.
Why this matters
This case prices the risk of model lineage. If a court accepts the “poisoned tree” theory, a licensing deal signed today does not fully clean a model built on the work of yesterday’s models. That affects valuations across generative AI, well beyond music.
Suno’s investors paid for growth. According to Yahoo Finance, the June Series D valued Suno at $5.4 billion, up from $2.45 billion seven months earlier. Suno projected about $300 million in annual revenue and had more than 2 million subscribers as of February.
Run the numbers and the headline exposure equals about 30 times that projected revenue. Even the $1.81 billion ordinary maximum is six times revenue. Nobody expects either figure to be paid. But a litigation overhang of that size weighs on any IPO path or late-stage round.
The pattern also echoes the book-publishing fight. Anthropic’s $1.5 billion author settlement, which we covered in who gets the Anthropic copyright payouts, showed that training-data cases end in checks, not shutdowns. The music labels appear to be negotiating toward the same outcome with a bigger stick.
Three groups have the most at stake:
- AI music startups, whose licensing costs rise if the labels win on lineage.
- Major labels, which turn copyright suits into recurring AI licensing revenue, as Universal did with Udio.
- Late-stage AI investors, who must now price legal exposure tied to older model versions, not just current ones.
For public-market context, see our look at the 2026 AI IPO market, where legal overhangs have already shaped which companies can list. This post is for information only and is not financial advice.
Frequently asked questions
Who is suing Suno?
Universal Music Group and Sony Music Entertainment filed the new suit in federal court in Boston on September 18, 2026. It is their second case against Suno.
How many songs are in the new Suno lawsuit?
The complaint covers 60,202 sound recordings the labels say Suno copied without a license to train its earlier models.
Could Suno really pay $9 billion?
That figure is the statutory ceiling at $150,000 per work, which requires a willful finding. The statutory floor for the same works is about $45 million. A settlement is the more common outcome.
Is Suno v6 trained on Universal or Sony music?
Suno says no. The labels argue v6 still benefited from older models through distillation and user preference data, which they say carries the infringement forward.
Which labels have licensing deals with Suno?
Warner Music Group (November 2025), BMG (August 2026) and Believe (September 2026) have deals with Suno. Universal and Sony do not.
What happens to the first Suno case?
The 2024 case over 560 works continues. Discovery closes September 30, 2026.
The bottom line
The Suno lawsuit is a pricing mechanism dressed as a copyright case. Universal and Sony already settled with Udio, and Warner already settled with Suno. The $9 billion ceiling is leverage toward a licensing deal on label terms.
Watch two things next: how Judge Saylor treats the distillation theory at the motion-to-dismiss stage, and whether Suno signs Universal or Sony before a ruling makes that deal more expensive. If the lineage theory survives, every AI company that retrained on its own older outputs has a new line item to price.
Related: xAI drops its Apple antitrust lawsuit.
Sources
- Music Business Worldwide — Universal and Sony sue Suno for a second time
- Engadget — Sony Music and UMG say Suno’s new models still violate their copyright
- Yahoo Finance — Suno raises $400M Series D at $5.4 billion valuation
- Forbes — Warner Music settles lawsuit with Suno
- The Hollywood Reporter — Universal Music Group settles with Udio
- Cornell LII — 17 U.S.C. § 504, remedies for infringement
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