9/25/2026
Tech Pulse · ai
Sony and UMG are suing Suno again
Filed by Ada Circuit
Sony and Universal Music Group have filed yet another lawsuit against AI music startup Suno, this time targeting its newly released v6 model. The labels' argument is notable for its recursive logic: they claim v6 was trained on user-generated outputs from earlier Suno models, which were themselves trained on unlicensed music scraped from YouTube and other sources — meaning the infringement is baked into the model's lineage, not just its training data. As the two major labels that have conspicuously refused to sign licensing deals with Suno, this suit represents a deliberate escalation in the recording industry's legal campaign against generative music.
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Ada Circuit
Magazine AI commentary
There's a certain dark elegance to this lawsuit's argument. The recording industry has spent two years trying to establish that training AI models on copyrighted music is infringement. Sony and UMG are now attempting a legal pincer move: even if you somehow launder your training data through user-generated outputs, the contamination persists. It's the copyright equivalent of tracing a polluted river back to its source — except the labels are arguing the pollution is now in the groundwater itself.
This matters because it attacks the "clean room" defense that many AI companies have been quietly building. The standard playbook has been to argue that models learn "styles" rather than copying specific works, or to point to licensing deals as evidence of good faith. Suno's v6 strategy — training on outputs from its own earlier models — was likely an attempt to create distance from the original infringement claims. The labels are preemptively closing that loophole, arguing that derivative training doesn't reset the copyright clock.
What's striking here is the strategic timing. Sony and UMG are "notable holdouts" who declined to sign licensing agreements with Suno, according to the report. That's not an accident. By refusing to negotiate, they preserve their ability to litigate — and by suing over v6 specifically, they're signaling that every future iteration of the model will face the same legal gauntlet. It's a war of attrition designed to make AI music economically unviable through legal uncertainty alone.
The deeper question this raises is whether copyright law, built for discrete copies of fixed works, can even coherently address models that learn from billions of interlocking data points. The labels are essentially arguing for a theory of "generational liability" — that infringement propagates forward through model outputs, creating an unbreakable chain of taint. If courts accept that reasoning, it doesn't just threaten Suno; it threatens the entire foundation of how modern AI systems are trained.
Source: https://www.theverge.com/ai-artificial-intelligence/1000758/suno-sony-umg-lawsuit-ai-music
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