Suno launched its v6 family on September 9 with the language every anxious creator wanted to hear: a new generation, built from scratch, developed with licensed music partners.
Nine days later, Sony Music Entertainment and Universal Music Group filed a new federal lawsuit.
The timing is spectacular. The underlying question is bigger: can an AI model truly start over if it learns from the behavior of an earlier model?
The nine-day reset
Suno introduced v6, v6-wild and v6-mini as models built with Warner Music Group, BMG and Believe. Suno Chief Product Officer Jack Brody told Music Business Worldwide that v6 was trained “entirely from scratch, from the ground up,” using data that did not include Universal or Sony recordings.
On September 18, Sony, Universal and several affiliated labels filed a 45-page complaint in the U.S. District Court for Massachusetts. The filing identifies 60,202 sound recordings the plaintiffs say were copied without permission. It is the second action brought by those labels against Suno.
That is an allegation, not a judgment. Suno disputes it.
Why the words “user interactions” matter
The case is not only about whether audio files entered a training set. The labels focus on Suno's statement that v6 learned from user interactions with earlier versions — including generations and preference signals.
Their argument is blunt: if previous models were trained unlawfully, then teaching a new model with outputs and preferences produced by those systems does not create a clean break. The complaint calls v6 “the fruit of the same poisoned tree.”
Suno answered publicly on September 22. The company said v6 was trained on licensed partner content, creations and preference signals from its community, and accumulated learning from its team. It called the new lawsuit fundamentally flawed on both the facts and the law.
That disagreement points toward a legal question with consequences far beyond one company: does knowledge transferred from an earlier model carry the legal history of that model with it? Courts have not supplied the final answer.
The headline number is enormous — and theoretical
The complaint's 60,202-recording list creates a dramatic damages calculation. U.S. law can allow statutory damages of up to $150,000 per willfully infringed work. At that ceiling, Music Business Worldwide calculated theoretical exposure above $9 billion, before a separate anti-circumvention claim.
That is not a prediction of an award. Maximum statutory figures are not the same thing as likely damages, and the claims still have to be proved. But the number explains why provenance is becoming a product feature rather than a footnote.
What creators should take from this
This fight does not mean every track made with a generative tool is automatically infringing. It does mean that a platform saying “licensed” may not settle every question about earlier models, transferred data or model lineage.
Before using AI-generated music commercially:
- Save the generation record. Keep the date, prompt, model version and exported stems.
- Read the commercial-use terms for your plan. A subscription receipt is not a universal rights guarantee.
- Document your human contribution. Lyrics, arrangement edits, performances and mix decisions create a clearer creative record.
- Avoid imitation prompts. Describe musical traits instead of requesting a living artist's identity.
- Prefer tools that explain provenance. “Trust us” is weaker than documented licensing, consent and attribution practices.
The real battle just changed
For years, the AI music argument sounded simple: licensed training versus unlicensed scraping. The v6 dispute makes it messier. A company can sign partners, rebuild a model and still face questions about what knowledge crossed the bridge from its past.
That does not prove the labels are right. It proves “we started over” is no longer the end of the conversation.
Sources
- Universal and Sony sue Suno for a second time — Music Business Worldwide, September 18, 2026
- Sony Music and Universal Music sue Suno over label-backed v6 — Variety, September 18, 2026
- Suno confirms v6 training included community creations and preference signals — Music Business Worldwide, September 22, 2026
SoundGen Team
Written by the team building SoundGen
