索尼与环球音乐再次起诉 Suno，指控其 v6 模型存在模型洗白
Sony and UMG are suing Suno again
索尼和环球音乐再次起诉 Suno，指控其通过模型洗白和知识蒸馏训练 v6。诉状称，即使模型未直接使用原告录音训练，也受益于 Suno 保留的未授权副本。Suno 此前向 The Verge 表示 v6 从头训练，使用了合作伙伴授权内容、社区创作与偏好信号等数据，但未说明是否包含用户上传的音频。
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Suno v6 的训练数据来源成为诉讼焦点，读者可了解音乐生成模型在版权争议中的合规边界。
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In its complaint shared with The Verge , Sony and UMG accuse Suno of “model laundering,” saying:
When v6 launched, Suno’s Jack Brody told The Verge it was “trained from the ground up, with a new set of data,” including “user data,” but did not offer details beyond that. Suno spokesperson Rachel Racusen later confirmed to The Verge that data includes “creations” from users, saying, “v6 was trained on content licensed from our partners, interactions including creations and preference signals from our community, and the accumulated learnings from our team,” but did not specify whether that included uploaded audio or outputs based on uploaded audio .
Sony further alleges that Suno used distillation to train v6. It claims that it was trained to replicate the results of its previous, “teacher” models, which were created using infringing data.
The complaint says that “even a model not directly trained on Plaintiffs’ recordings is informed by, and benefits from, Suno’s retained unauthorized copies.” Essentially, the labels argue that, unless Suno truly starts from scratch, its models will continue to be built on stolen data.
Update September 25th, 2026: Added statement from Suno.