Sony Music and Universal Music escalate legal fight, alleging Suno’s v6 models rely on unlicensed recordings

Sony Music Entertainment and Universal Music Group have broadened their copyright litigation against AI music startup Suno, contending in a fresh legal filing that the company’s newest models were trained on their recordings without permission. The labels argue that Suno did not genuinely change its data practices for its v6 generation of models, but instead found an indirect route to the same copyrighted material.

The dispute is part of a wider wave of lawsuits in which major music rights holders are testing whether training generative AI systems on licensed recordings constitutes infringement. Sony Music, a division of Sony Group Corporation, and Universal — the world’s largest recorded music company — have positioned the case as a test of how licensing norms will apply to AI-generated music, an increasingly commercial category.

According to the new complaint, Suno’s claim that its v6 models were built differently does not hold up, and the underlying training still draws on the labels’ catalogs. The outcome could shape whether AI music companies must strike licensing deals upfront or can rely on fair-use defenses that remain untested at scale in the courts.

Market context

The litigation touches Sony Group, whose entertainment arm sits alongside a large electronics and imaging business. Sony shares traded at $23.85 recently, down 0.15% from the prior close of $23.89, giving the company a market capitalization of roughly $139.4 billion. Universal Music Group is not publicly traded on U.S. exchanges but is a central party to the case.

For the broader technology sector, the case adds to a growing docket of copyright disputes involving AI developers across music, images, text, and video. Companies in the space are watching closely as courts begin to define whether training on copyrighted works requires a license, and what licensing might cost.

What to watch

• Upcoming court rulings on motions in the Suno litigation, which could narrow or broaden the fair-use questions at stake.
• Whether other major labels or publishers join the expanded claims.
• Any licensing announcements between Suno and rights holders, which would signal a shift toward negotiated settlements.
• Sony Group’s next quarterly earnings report, where entertainment-segment commentary may address AI and copyright strategy.

Source: original release.