UMG and Sony Music Go Back at Suno Over New v6 AI Models

Universal Music Group and Sony Music have filed a fresh complaint against Suno, the AI music generation platform, over how the company built its latest v6 models. The issue isn't new ground — it's the same argument they've been making: that Suno trained these new versions on copyrighted music without proper licensing or consent.

Here's the wrinkle this time. According to reporting, Suno claims it licensed music from Warner Music Group and Believe Music Group for the v6 dataset, plus leaned on "user data." That distinction matters because it suggests Suno tried to make moves legit — at least partially. But UMG and Sony aren't buying it, and they're putting that position on the record again.

This is the ongoing cold war between major labels and AI companies over training data. The labels want payment and permission; Suno says fair use and licensed sources cover them. Both sides are locked in, and neither's backing down. The complaint suggests we're nowhere near a settlement here.

For anyone watching the AI music space, this is the battle that matters most right now — who gets to own the data that trains these systems, and who profits when they do.

Read the full story at Music Ally → https://musically.com/2026/09/21/umg-and-sony-music-file-new-suno-complaint-over-v6-models/