LA Rapper Fenix Flexin Now Admits Using AI for Hit Song 'Rubberz'

Fenix Flexin, an LA rapper, has now admitted to using artificial intelligence in the creation of his hit song "Rubberz," a track with an 80s synth-pop aesthetic. The admission came via an Instagram comment reply to another user pointing out that artist Tyga had also relied on AI for his album $tarface. In his comment, Fenix stated: "never said I didn't use AI, i said it had nun to do w recording process. I didn't even know what da app was till we mixed it and erbody started commenting. ain't nothing wrong w using new technology as a tool keep up w the times or get left behind."

This reversal is significant because Fenix had spent weeks publicly denying AI involvement in the track. Most notably, during an appearance on Hot 97's Mornings With Mero last month, when interviewer Kazeem Famuyide asked him directly about AI use, Fenix stated plainly that there's "no AI on it." Beyond that single statement, he and his team had taken multiple steps to counter the allegations: posting clips they claimed were from recording session files, commenting on posts to insist the song was made by two humans recording in his living room using "pro tools auto tune and some reverb," and even claiming he was actually singing in clips that appeared to show lip-syncing.

The evidence that prompted the admission came from producer Medasin, who released videos identifying the AI tool Treblo (formerly known as Sonauto) as central to the song's creation. The Treblo company itself then released an AI detector that identified the track as AI-created, providing technical confirmation of Medasin's claims. With this evidence public and verifiable, Fenix's continued denials became untenable, leading to his shift in narrative: rather than deny AI use, he now repositions it as a legitimate production choice aligned with technological progress.