Sure seems like Fenix Flexin used AI music generator Treblo

The Verge reports that Treblo, an AI music generator, has released an open-source classifier designed to detect whether a track was produced with its own software. The company's tool has now flagged Fenix Flexin's "Rubberz" as very likely Treblo-generated, with high confidence and a false positive rate of less than 1 in 1,000.

This is a quiet but telling development in the AI music space. Treblo is not claiming to detect all AI-generated audio. It is claiming to detect its own output. That is a narrower claim, and a commercially useful one. By open-sourcing the classifier, the company positions itself as the transparent party in a murky field, while simultaneously converting a public accusation into a proof-of-concept for its detection technology.

The Flexin case was already a PR problem. Now it becomes a marketing demonstration. The company gets to show that its tool works, that it is willing to expose its own fingerprints, and that it can add forensic weight to a public dispute. Whether the classification is correct is a separate question, and the company's own false positive rate means it is not infallible. But the strategic move is clear: turn a controversy into a credibility play.

For the broader AI music market, this signals a shift toward provenance as a feature. If generators start shipping their own detectors, the conversation moves from "is this AI?" to "which AI made this?" That is a more precise question, and one that favors companies willing to be identified. The ones that resist such tools will face an awkward silence.

None of this changes the underlying tension in the music industry around AI-generated work. But it does add a new layer of accountability, one built not by regulators or platforms, but by the generator itself. That is worth watching.