What did the judge actually refuse?

On 3 July 2026, Judge Alvin K. Hellerstein turned down Sony Music's attempt to bolt 30,442 more sound recordings onto its infringement case against the AI music platform Udio. The suit stays exactly where it was: 333 works. The label had filed the motion on 22 May 2026, arguing it only spotted the additional tracks after discovery gave it a look inside Udio's training data.

The reasoning was about timing and scale, not about whether the recordings were used. Piling on more than thirty thousand works so close to the end of document discovery, the judge wrote, "would require substantial additional production and review, generate further disputes, and materially alter the scope of the case before me."

Why is Sony fighting alone?

A year ago the majors moved as a bloc. That bloc has broken. Udio has since signed licensing agreements with Universal Music Group, Warner Music Group, the independent-rights body Merlin and the publishers' association the NMPA, and each of those deals settled the suit the signer had brought. Sony is the one major label that has not taken a cheque and walked. It is still in court.

The rivals cashed their licensing cheques. Sony is the last one still swinging.

That matters for how the case reads. This is no longer the record industry versus a startup; it is a single holdout deciding whether litigation buys it a better position than a signature would have.

What does this mean for a producer's tracks?

Strip away the docket numbers and the question underneath is the one that touches anyone who uploads music: can an AI model train on your recordings without asking, and how much can a rights-holder haul into a single lawsuit once it gets to peek at the training set? This ruling answers the second half narrowly. It does not touch the first.

Legal observers expect the wider Suno and Udio fair-use fight to produce a pivotal US ruling later in summer 2026, one that could set the terms for every AI music company at once. That decision is the one to watch. This week's order just fences off the battlefield; it does not end the war.