Major record labels have escalated their lawsuit against Suno, alleging that the AI startup knowingly pirated songs from YouTube to train its generative AI music models. In the amended complaint filed on September 19th, the Recording Industry Association of America (RIAA) accuses Suno of unlawfully “stream ripping” tracks on YouTube — a practice that involves turning content captured from streaming platforms into downloadable files — and circumventing measures designed to prevent unauthorized copying.

The updated lawsuit alleges that Suno “employed code to access, extract, copy, and download” copyrighted works from Universal, Sony, and Warner, and violated YouTube’s terms of service by circumventing the platform’s “rolling cipher” encryption. This circumvention of YouTube’s technological

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