Sony Music and Universal Music Group File New Lawsuit Against Suno

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Sep 18, 2026 9:42am PT

Sony Music, Universal Music Group Sue Suno Over Label-Backed Model: ‘Fruit of the Same Poisoned Tree’

By Corbin Bolies

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Corbin Bolies

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Sony Music Entertainment and Universal Music Group aren’t done with Suno in federal court.

The two labels filed a new, 45-page lawsuit in the U.S. District Court in the District of Massachusetts against the AI music-generation company, alleging Suno’s new model, backed by several music companies, still infringed on Sony Music and UMG’s copyrighted works. The two (along with some of their respective imprints, named as fellow plaintiffs) alleged Suno’s admission that its new “v6” family of models trained upon the outputs of its previous models meant that, despite the company’s claims its new models do not infringe on copyrighted work, “training a ‘new’ model on the outputs of an infringing model does not eliminate the infringement; it launders it.”

“V6 is not a fresh start; it is the fruit of the same poisoned tree,” the labels claimed.

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Suno did not have an immediate comment.

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- Sony Music Entertainment, - Universal Music Group

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_Originally reported by [Variety Music](https://variety.com/2026/music/news/sony-music-universal-music-sue-suno-label-backed-model-1236866921/)._