AI Detection Tool Flags Fenix Flexin's "Rubberz" as Treblo-Generated

Suspicions that rapper Fenix Flexin's viral hit "Rubberz" was created using artificial intelligence have taken on new weight following the release of a specialized detection system. Treblo, the AI music generation platform, unveiled an open-source classifier this week capable of identifying whether songs were produced using their technology.

New Detection Tool Points to Treblo#

Treblo's AI Music Classifier examined "Rubberz" and determined it was "very likely Treblo" with "high confidence." The detection tool claims a false positive rate below 1 in 1,000, making it a potential benchmark for identifying AI-generated music. CEO Ryan Tremblay commented that the song's classifier score indicated it "was generated almost entirely by our model," and noted it could represent the first known AI-generated track to chart on the Billboard Hot 100.

The classifier's findings align with earlier speculation from musician Medasin, who had flagged the track as Treblo-generated. Tremblay appeared to welcome the attention, remarking that "someone appears to have used our model to find a sound that millions of people connected with and that's exciting."

Fenix's Defense Remains Unconvincing#

Fenix Flexin has maintained that the song was created through traditional production methods, posting low-resolution video clips purporting to show project files from his recording session. These materials have failed to meaningfully address the AI skepticism surrounding the release. According to reporting from Stereogum, Medasin suggested in an Instagram post that Fenix may have simply employed an AI stem separator—software that artificially isolates vocal and instrumental components—to fabricate evidence of a genuine production process.

The artist has not yet responded to requests for further comment on Treblo's detection findings.