Sony and UMG sue Suno again over v6 copyright claims
Sony and Universal Music Group filed another lawsuit against Suno, The Verge reports. The labels claim Suno's v6 model still infringes their copyrights because it was trained on user outputs from previous Suno models, which they say were trained on unlicensed music ripped from YouTube and other sources. The reporting notes Sony and UMG are holdouts who did not sign some prior agreement others may have joined, though that deal is unnamed in the excerpt. The available material records allegations, not court rulings, and does not detail specific works, damages, or evidence filings. If the training-lineage theory gains traction in litigation, teams building generative stacks may face scrutiny over whether fine-tuning or retraining on user outputs compounds earlier copyright exposure rather than resetting it.
Sony and UMG sue Suno again over v6 copyright claims
Sony and Universal Music Group filed yet another suit against Suno. The labels claim its new v6 model still infringes on their copyrights because it is trained on user outputs from previous models, which were themselves trained on unlicensed music ripped from YouTube and other sources.
Key takeaway
The labels' novel framing is that Suno v6 may carry forward infringement by training on outputs from earlier Suno models, not only on raw scraped sources.
What happened
According to The Verge, Sony and Universal Music Group filed yet another suit against Suno, alleging that its new v6 model continues to infringe their copyrights.
The labels argue v6 was trained on user outputs from previous Suno models, which they say were themselves trained on unlicensed music ripped from YouTube and other sources; the excerpt also describes Sony and UMG as holdouts who did not sign an unnamed prior agreement.
Evidence
Sony and UMG filed another lawsuit against Suno over v6.
The Verge AI · attributed
Sony and Universal Music Group filed yet another suit against Suno.
The labels allege v6 infringes because it was trained on outputs from prior Suno models tied to unlicensed music.
The Verge AI · attributed
The labels claim its new v6 model still infringes on their copyrights because it's trained on user outputs from previous models, which were themselves trained on unlicensed music ripped from YouTube and other sources.
Sony and UMG are described as holdouts who did not sign some prior deal.
The Verge AI · attributed
Sony and UMG are notable holdouts who did not sign
The suit hinges on inheritance of infringement through training on prior models' user outputs.
The Verge AI · attributed
Sony and UMG are pursuing Suno through a new lawsuit that hinges on the claim that its v6 model inherits infringement from training on prior models' user outputs.
Why it matters
Major-label litigation that targets model-to-model training chains could shape how licensors and courts treat generative music products and unsigned holdout majors.
Limits and uncertainties
Reporting is excerpt-length and states label allegations, not court findings or proven infringement.
The prior agreement Sony and UMG declined to sign is not named, and specific works, damages, and filed evidence are not described.
Practical implications
Teams training new models on user outputs from earlier in-house or third-party generative models should map copyright and license lineage explicitly.
Policy and product leads should track whether courts or settlements treat output-to-output training as compounding earlier unlicensed training claims.
What to watch
Court filings or docket updates spelling out the v6 training-data theory, requested relief, and cited recordings or sources.
Whether Sony and UMG disclose or press claims tied to the unnamed deal other labels may have signed.
