UMG and Sony v. Suno (v6): The Second Suno Lawsuit, Explained
Yes, Suno v6 still works and nothing in this case has been decided. The labels want damages and a court order stopping Suno's use of 60,202 recordings, and they argue v6 is infringing because it learned from songs made with older, unlicensed Suno models.
Timeline of key events
- New
Suno says v6 was trained partly on user creations
Suno calls the claims fundamentally flawed and says v6 was trained on licensed partner content, interactions including creations and preference signals from its community, and its team's learnings.
Read the full story - New
Universal and Sony file a second lawsuit against Suno
A new complaint names 60,202 recordings, demands a jury trial, and argues v6 is the fruit of the same poisoned tree because it was built on outputs of older models trained on the labels' music.
Read the full story -
Suno launches v6 with Warner Music, BMG and Believe
Suno's Chief Product Officer Jack Brody says v6 was trained from scratch on data that does not include Universal or Sony recordings.
Music Business Worldwide -
Judge Saylor refuses to add 61,026 recordings to the first Suno case
In the labels' June 2024 case, Judge F. Dennis Saylor IV denies the expansion without prejudice to keep a fair use ruling on schedule, and notes the works could be brought in a separate suit.
Read the full story
What is UMG and Sony v. Suno (v6) about?
Universal Music Group and Sony Music Entertainment sued Suno for the second time on September 18, 2026, in the same Boston federal court that hears their first case. You can read my coverage of the filing and Suno’s reply.
The complaint names 60,202 recordings. Those are almost all of the 61,026 works the labels tried and failed to add to RIAA v. Suno in August.
Who is involved?
Universal Music Group and Sony Music Entertainment are the two majors still fighting Suno. Warner Music settled with Suno in November 2025 and became a v6 partner.
Suno is the AI music platform behind v6, launched on September 9, 2026 with Warner Music, BMG and Believe.
What are the claims?
The base claim is copying: the labels say Suno used 60,202 of their recordings without a licence to build its models. They add a claim over bypassing YouTube’s download protection, the same kind of claim Judge Saylor allowed into the first case.
The new claim is about v6. The labels say v6 learned from songs users made with older Suno models, and from their picks between the 2 versions Suno generates. Because those older models were trained on the labels’ music, they argue v6 carries the same infringement forward.
On September 22, Suno said v6 was trained on licensed partner content, “interactions including creations and preference signals from our community”, and its team’s learnings.
What to watch next
Suno’s formal answer is the first signal. Its statement disputes the claims, and a court filing will show how it defends training on user creations.
The second signal is the first case. Fact discovery there closes on September 30, 2026, and a fair use ruling in RIAA v. Suno would shape how Judge Saylor reads this one.
Frequently asked questions
- What is the UMG and Sony v. Suno (v6) lawsuit about?
- Universal Music Group and Sony Music Entertainment say Suno copied 60,202 of their recordings without a licence to build its music models. The new part is v6: the labels argue a model trained on the outputs of infringing models is still infringing, calling v6 the fruit of the same poisoned tree.
- How is the Suno v6 lawsuit different from RIAA v. Suno?
- RIAA v. Suno was filed in June 2024 and covers 560 recordings. The v6 lawsuit was filed on September 18, 2026 with 60,202 recordings the judge would not add to the first case, plus claims aimed at the v6 model. Both are before Judge F. Dennis Saylor IV in Boston.
- Has Suno responded to the Universal and Sony v6 lawsuit?
- Suno issued a statement on September 22, 2026 calling the claims fundamentally flawed on both the facts and the law. It has not yet filed a formal answer with the court.