The Recording Industry Association of America today filed two copyright infringement lawsuits against AI music generators Suno and Udio, alleging they copied decades of copyrighted sound recordings without permission to train their models. The cases, brought on behalf of Sony Music Entertainment, Universal Music Group, and Warner Records, were filed in federal courts in Boston and New York.

The RIAA says the complaints cover recordings by artists across multiple genres, styles, and eras, and that the services generate outputs that imitate the qualities of genuine human sound recordings. The suits seek declarations of infringement, injunctions, and damages. The complaints argue that the companies engaged in willful infringement on an ‘almost unimaginable scale’ and cannot claim fair use because they generate imitative machine-made music rather than human expression.