Universal and Sony sued Suno for a second time on September 18. The argument is about how the model was built rather than what it produces. As Music Business Worldwide reported from the complaint, which covers 60,202 recordings, the labels say Suno’s newest model never started clean: “v6 is not a fresh start; it is the fruit of the same poisoned tree.”
The claim is about lineage rather than any single song. The complaint says v6 was trained on output from Suno’s earlier models, and those earlier models are what the first case is already about. Training a new model on an old model’s output, the labels argue, launders the problem instead of fixing it.
One thing is easy to garble. Suno’s own announcement of v6 says the models were developed with its industry partners, and names Warner Music Group, BMG and Believe. Universal and Sony are not on that list. Suno does not use the word licence. That absence is the reason there is a case at all.
Suno told Engadget the claims “remain fundamentally flawed on both the facts and the law.”
We didn’t read the complaint or the docket.