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ToolsSat, August 8, 2026·Aug 8

Fenix Flexin acknowledges AI use on “Rubberz”

The rapper’s comments follow claims that Treblo was used to make the 80s-themed song.

Why it matters

The dispute shows how AI music tools are becoming harder to separate from mainstream releases and artist credits. It also highlights the growing role, and limits, of AI-detection claims in music-industry accountability.

The key points

  • 1.Fenix Flexin appears to acknowledge AI use on “Rubberz.”
  • 2.Producer Medasin claimed Treblo was used to make the song.
  • 3.Fenix said AI was not part of the recording process.

LA rapper Fenix Flexin appears to have acknowledged using AI for the 80s synth pop-themed song “Rubberz,” according to The Verge. His comments came after producer Medasin posted videos claiming the AI tool Treblo, formerly Sonauto, was used to make the song, and after Treblo released an AI detector that identified it as Treblo-created. Fenix said he “never said” he did not use AI, but said it had nothing to do with the recording process.

Try this today

If you release AI-assisted music, document which tools affected writing, production, mixing, and recording before publication.

Sources & original reporting

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