Sony sues Udio over 30,000 songs in escalating AI copyright battle

What happened

Sony Music Entertainment has filed another lawsuit against Udio, the AI music generator, accusing the company of infringing the copyrights of more than 30,000 songs in Sony's catalog. The suit was filed in a New York court on Monday and spans a remarkably broad range of artists and eras—from Elvis Presley's "Hound Dog" to Beyoncé's "Say My Name" to Harry Styles' "As It Was."

The scale of the claim—over 30,000 works—makes this one of the largest copyright infringement assertions brought against an AI music platform to date. Sony's filing signals that major labels are not retreating from litigation even as some AI companies pursue licensing deals. The word "another" in Sony's legal posture suggests this is not the first action against Udio, indicating an escalating enforcement strategy.

Why it matters

This lawsuit sits at the center of the music industry's broader confrontation with generative AI. The core legal question is whether training an AI model on copyrighted recordings constitutes infringement, or whether it falls under fair use—a defense AI companies have leaned on but courts have yet to definitively resolve for music.

The breadth of Sony's claim matters for several reasons. First, 30,000 songs represents a substantial portion of a major label's catalog, which means the potential damages could be enormous if Sony prevails. Second, the inclusion of iconic tracks across multiple decades suggests Sony is building a case that Udio's model was systematically trained on commercial recordings at scale, rather than incidentally reproducing a few works. Third, the outcome could set precedent for how AI music tools are allowed to operate, potentially requiring licensing agreements with rights holders before training begins.

For AI music startups, the message from major labels is increasingly clear: unlicensed training data is a legal liability. Several AI music companies have begun pursuing licensing agreements, but litigation continues in parallel, creating an uncertain environment for the sector.

What to watch

• Whether Udio responds with a fair use defense or seeks to settle, and how that shapes the broader AI music legal landscape.
• The potential damages calculation if Sony prevails on even a fraction of the 30,000 claimed works.
• Whether other major labels—Universal Music Group and Warner Music Group—file similar suits against Udio or competitor platforms like Suno.
• How courts handle the distinction between training on copyrighted works and generating outputs that resemble them, a nuance that could determine the viability of the entire AI music category.
• Whether this litigation pushes more AI music companies toward licensing deals, and what terms those deals might establish for per-stream or per-training-use compensation.