The major music companies have escalated their copyright infringement lawsuit against AI music generation company Suno, filing an amended complaint that alleges the startup illegally “stream ripped” copyrighted recordings from YouTube to train its AI models. '”The complaint suggests that Suno may have ‘stream-ripped’ millions of copyrighted sound recordings to train its model. Universal Music Group, Sony Music Entertainment, and Warner Music Group now claim that Suno circumvented YouTube’s technological protection measures – specifically its “rolling cipher” encryption – to illegally download and copy their copyrighted recordings for use in training its AI music generation models. The Anthropic settlement, confirmed earlier this month, has clearly emboldened the record labels to pursue more aggressive legal strategies against AI companies. Despite these protections, the labels allege Suno employed code to circumvent these measures and illegally download their copyrighted recordings.