A group of independent musicians and songwriters is taking Google to court over allegations that the company scraped roughly 44 million audio clips from YouTube to train its Lyria 3 music-generation model. That’s approximately 280,000 hours of music, used without compensation or consent from the people who made it.

Google’s response? You already agreed to this when you uploaded your video. The company filed a motion to dismiss on June 10, citing YouTube’s terms of service as a binding license.

The terms of service defense

The lawsuit was filed on March 6, 2026, in the US District Court for the Northern District of Illinois. The plaintiffs claim straightforward copyright infringement: Google took their creative work, fed it into a machine learning model, and never asked or paid.

YouTube’s terms of service do grant Google a worldwide, non-exclusive, royalty-free license to use, reproduce, and process uploaded content. The critical question is whether “process” stretches far enough to encompass training a generative AI model that can produce competing music.

Google actively enforces copyright protections on YouTube through its Content ID system, which scans uploads to detect unauthorized use of copyrighted material. The company simultaneously argues that it has the right to use that same copyrighted material for its own AI development.

What Lyria 3 actually does

Lyria 3, built by Google DeepMind and integrated into Google’s Gemini AI chatbot, represents a significant leap in AI music generation. The model can produce full tracks complete with vocals and lyrics, lasting up to three minutes.

Why this case matters beyond music

For the broader tech and investment landscape, this case sits at the intersection of the rapid expansion of generative AI and the growing backlash over intellectual property rights. The case also highlights a strategic vulnerability for Google specifically. YouTube is the world’s largest repository of music, and Google’s AI ambitions depend heavily on access to that data. If the company loses the right to train on YouTube uploads without explicit consent, it would need to either negotiate licensing deals at massive scale or find alternative data sources.

Investors in AI-adjacent companies should pay attention to how the Northern District of Illinois handles Google’s motion to dismiss. A denial would signal that courts are skeptical of the “terms of service as blanket AI license” argument, and that skepticism would immediately become a risk factor for any company whose AI strategy depends on freely available internet content.