Deeer is taking the fight against unlabeled AI-generated music into its own hands with a new free tool that scans playlists across rival streaming services. CEO Alexis Lanternier announced the detector on June 11, framing it as a consumer-facing solution after the company's attempts to license its detection technology to competitors failed to gain traction. "No other company has followed our lead yet, so we decided to make it possible for everyone to check if their playlists include synthetic music, no matter which streaming platform they use," Lanternier said in a press release. The new tool works through Deezer's AI music detector website, where users select from 20 supported platforms — including Spotify, Apple Music, SoundCloud, and YouTube Music — and grant Deezer permission to access their account. Once connected, Deezer imports the user's playlists using Tune My Music, a service the company already relies on for library transfers from competitors, then runs each track through its AI-detection system. The scan identifies synthetic content and presents a report, which users can optionally share. Deezer first began tagging AI-generated tracks on its own platform and subsequently pitched its detection engine to industry peers, but Qobuz opted to build proprietary technology while Apple and Spotify chose voluntary tagging systems that rely on rights holders self-declaring AI usage. The move puts Deezer in a slightly unusual position as both a streaming competitor and a third-party watchdog. By processing playlists on services like Spotify and Apple Music, the company is leveraging its technological edge in AI detection — an area where it claims a significant head start — to build goodwill with users frustrated by the proliferation of low-quality synthetic tracks. Industry observers note that the broader streaming ecosystem has struggled to agree on a standard approach: voluntary tagging systems remain porous, and the absence of mandatory disclosure means listeners often can't tell whether the track they're enjoying was performed by a human artist or generated by a model. Whether Deezer's new tool changes user behavior or pressures holdouts like Spotify to adopt stricter standards remains to be seen, but it gives the French streaming service a new way to differentiate itself in an increasingly crowded market dominated by larger players.