UMG Recordings, Capitol Records, and Sony Music Sue Suno, Inc. for Massive Copyright Infringement
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Major record labels allege Suno, Inc. built its AI music generator by unlawfully stream-ripping copyrighted recordings from YouTube to train its models without permission.
UMG Recordings, Inc., Capitol Records, LLC, and Sony Music Entertainment filed a First Amended Complaint against Suno, Inc. on August 25, 2026. The lawsuit, filed in the U.S. District Court for the District of Massachusetts, alleges that the generative AI company built its business on the unauthorized copying of decades of popular sound recordings. The document was first reported by CourtListener. The plaintiffs, who control the majority of the world's commercially valuable music, claim Suno's technology is not an exempt form of innovation but a service built on large-scale theft. ## The YouTube Extraction The complaint is specific about how Suno obtained its training data. The record labels allege that Suno obtained copies of their recordings by "stream ripping" them from YouTube. This process involved circumventing technological measures designed to prevent unauthorized copying. Suno then ingested these recordings into its AI models. The goal was to train the software to generate synthetic musical outputs that imitate human recordings. The labels argue these outputs are designed to compete with and "cheapen" the original works they were built upon. ## Admission of Fair Use According to the filing, Suno has been evasive about its data sources. Suno executives have described their training data as a mix of proprietary and public information. One co-founder stated their practices were in line with what others are doing. However, the plaintiffs allege that in pre-litigation correspondence, Suno essentially conceded to the copying. When confronted with accusations of infringement, Suno did not deny the allegations. Instead, the company claimed its training data is "confidential business information" and asserted that the large-scale copying constitutes "fair use." The labels point out that a fair use defense only exists if the use of the copyrighted work was unauthorized in the first place. ## Institutional Harm The plaintiffs argue that Suno's service poaches listeners and potential licensees from the very artists it copied. The complaint states that if Suno had avoided using these specific recordings, its service wouldn't be able to produce convincing imitations of human musical expression at its current quality. The labels characterize this as a direct threat to the music industry's bedrock. They've already entered into licensing deals with streaming services, social media, and gaming platforms. Suno, however, allegedly chose to operate without these constraints to build its product faster. ## Legal Evidence The filing includes several attachments to support the claims of copying. Exhibit A lists the specific sound recordings at issue. Exhibit B provides Suno outputs that resemble copyrighted recordings. There's also a physical exhibit labeled Exhibit C. The plaintiffs are seeking a jury trial. They're positioning this case as a necessary enforcement of copyright law against AI companies that refuse to play by existing rules. They aren't just looking for a settlement. They're looking to stop what they call "willful copyright infringement on an almost unimaginable scale."