LA rapper Fenix Flexin has appeared to acknowledge using AI in his 1980s-style song ‘Rubberz’, after previously rejecting allegations that the track involved AI. The admission matters because it highlights growing disputes over transparency in AI-generated music and artists’ claims about how their work was made.

Producer Medasin had alleged that the song was created with Treblo, formerly Sonauto, and the company’s detector reportedly identified it as Treblo-generated. Fenix now says AI was not involved in the recording process and that he learned about the app only during mixing, but this conflicts with his earlier statement on Hot 97 that there was “no AI on it”; he and his team had also shared purported recording materials and defended the song as human-made.