Fenix Flexin reverses course, admits “Rubberz” was made with AI tool Treblo

LA rapper Fenix Flexin has finally acknowledged what producers and AI detection tools have been saying for weeks: his 80s synth-pop track “Rubberz” was made using artificial intelligence. The admission, buried in an Instagram comment, marks a sharp reversal from his earlier, emphatic denials.

“I never said I didn’t use AI,” Flexin wrote, claiming the technology had “nun to do w recording process” and that he didn’t even know what the app was until mixing. He ended with a shrug toward progress: “ain’t nothing wrong w using new technology as a tool keep up w the times or get left behind.”

That’s a dramatically different story from the one he told last month on Hot 97’s “Mornings With Mero.” When interviewer Kazeem Famuyide asked him point-blank about AI on the track, Flexin was categorical: “no AI on it.” His team had been running a full-court press to dispel the allegations, posting what they said were recording session files and insisting the song was made by two humans in his living room with just “pro tools auto tune and some reverb.”

The backpedal follows producer Medasin’s detailed videos claiming the track was built using Treblo, an AI music generator formerly known as Sonauto. The company then released its own detector that flags “Rubberz” as Treblo-created. Flexin’s pivot echoes Tyga’s recent admission about using AI on his own controversial 80s-inspired album $tarface, suggesting a normalization of the tool in hip-hop circles where authenticity has always been the currency. The question isn’t really technical anymore—it’s about what audiences are willing to accept when the beat drops.