Detect Deepfakesby Resemble AI
Deepfake case study · Audio

Fenix Flexin Responds To Viral Breakdown Claiming…

Rapper Fenix Flexin faced allegations from producer Medasin that his viral hit Rubberz was entirely generated by AI software

Incident date
Jul 2026
Target
Fenix Flexin
Updated Aug 1, 2026 · 1 min read

In July 2026, Shoreline Mafia rapper Fenix Flexin became the center of a public controversy regarding the origins of his viral track "Rubberz." Artist and producer Medasin released a detailed breakdown alleging that the song was entirely created using artificial intelligence, sparking a debate over transparency and ethics in music production.

What happened

Medasin’s investigation centered on the use of a software program called Treblo, formerly known as Sonauto AI. Medasin demonstrated how the software could replicate specific lyrical phrases and sounds found in "Rubberz," noting that Fenix had previously posted a song snippet with "Sonauto" in the file name shortly before the software rebranded.

In response to the mounting pressure, Fenix Flexin posted a carousel of videos on social media intended to serve as "receipts" for the song's creation. These videos displayed Pro Tools project files and audio stems, which Fenix presented as evidence that the song was produced using traditional recording techniques. However, Medasin challenged the validity of this evidence, asserting that Fenix had used a stem separator to break down AI-generated output into four distinct parts—vocals, instruments, bass, and drums—and then layered his own recorded vocals over the top to make the production appear authentic.

Medasin maintained that these project files were not legitimate and criticized the lack of honesty surrounding the track's creation. Following Medasin’s rebuttal, Fenix Flexin deleted his post containing the project files. Medasin concluded the exchange by emphasizing the importance of transparency regarding AI-generated content in music, arguing that the removal of the human creative journey in favor of software-generated prompts raises significant ethical concerns.

Sources