Universal Music Group and Sony Music are not done with Suno. On September 18, the two majors filed a second lawsuit against the AI music generator in the U.S. District Court in Massachusetts, a fresh 45-page complaint naming 60,202 sound recordings and seeking statutory damages that could theoretically top $9 billion.
Why file a whole new lawsuit?
UMG, Sony and Warner sued Suno together back in 2024 over how its earlier models were trained. This summer, the labels tried to simply add a wave of newly infringed tracks to that existing case. A judge said no in August, warning that folding thousands more works into the original suit would "dramatically prolong the cases," while explicitly leaving the door open to a separate filing. UMG and Sony walked through that door.
The new complaint leans on two damage theories: the standard $150,000-per-work ceiling for willful copyright infringement across 60,202 recordings (the roughly $9 billion figure), plus a second claim, worth up to $150 million, that Suno circumvented YouTube's anti-downloading technology using the scraping tool yt-dlp to pull audio for training.
What exactly are they accusing v6 of?
The core argument is that Suno can't wash its earlier infringement clean just by shipping a new model number. "v6 is not a fresh start; it is the fruit of the same poisoned tree," the complaint states, alleging Suno trained v6 through "student-teacher" knowledge distillation, essentially having a new model learn from the outputs of its older, allegedly infringing ones rather than starting over on licensed audio.
"Training a 'new' model on the outputs of an infringing model does not eliminate the infringement; it launders it."
The labels also reject any fair-use defense outright: "Suno offers imitative machine-generated music, not human creativity or expression."
Why did Warner just do a deal with the company UMG and Sony are suing?
Here's the part that stings for anyone watching the majors' strategy. Warner Music Group settled its own piece of the original 2024 case back in November 2025, striking a licensing deal that let artists and songwriters opt in to having their voice, name and catalog used for AI-generated music in exchange for compensation. BMG signed on in August 2026, and Believe followed in September. Suno launched v6 on September 9 explicitly built with that licensed cooperation, its first model with major-label backing built in.
Nine days later, UMG and Sony sued over that same model. Their complaint even cites the Warner, BMG and Believe deals as proof a functioning licensing market already exists, which makes Suno's continued reliance on unlicensed training data, in the labels' telling, a choice rather than a necessity. Suno's chief product officer has said the licensing agreements are "not in exchange for training" data specifically; the complaint calls that framing self-serving.
What does this actually mean for working producers?
This isn't just a fight between three corporations and a Boston-based startup. The complaint notes that more than 90,000 AI-generated tracks now land on streaming platforms every single day, competing directly with human-made records for the same playlist slots and the same royalty pool. For working house and techno producers whose income already runs on thin streaming payouts, that flood matters more than any single verdict: every AI track that streams is a track siphoning plays, and potentially payouts, away from someone who actually made the record. How this case resolves, whether through a $9 billion judgment, a Warner-style licensing settlement, or something in between, will help set the terms for how (or whether) AI-generated music gets priced against human catalogs going forward.
