Sure seems like Fenix Flexin used AI music generator Treblo
On Monday Treblo unveiled an AI‑music detection tool that claims a false‑positive rate of fewer than one in ten thousand samples. The classifier, which only recognizes output from Treblo’s own generative engine, returned a “very high probability” score for “Rubberz,” the track that propelled rapper‑producer Fenix Flexin onto the Hot 100. Treblo CEO Ryan Tremblay hailed the result as the first confirmed AI‑created song to chart, suggesting the model was employed to craft a hook that resonated with millions. Fenix Flexin has continued to deny the allegation, posting low‑resolution video of alleged DAW session files, while fellow producer Medasin argued the evidence points to an AI stem‑separation trick rather than a genuine recording.
The episode lands amid a surge of AI‑driven music tools that promise rapid composition, yet it also spotlights the nascent arms race between creators and detection services. Treblo’s decision to make its classifier open source is a strategic move to position the company as a gatekeeper of authenticity, even as the tool’s narrow focus leaves it blind to rival generators such as OpenAI’s Jukebox or Google’s MusicLM. The controversy also underscores the music industry’s uneasy balance: AI can unlock new sonic possibilities, but chart‑level success for an AI‑generated track threatens traditional notions of artistry and could pressure labels to scrutinize provenance more rigorously.
Going forward, the credibility of detection algorithms will become a litmus test for chart eligibility and royalty allocation. If Treblo’s classifier proves reliable, other AI firms may be compelled to develop comparable forensic tools, potentially leading to a fragmented ecosystem where each platform can only verify its own output. Meanwhile, artists may experiment with hybrid workflows—mixing AI‑generated stems with human performance—to sidestep detection while still leveraging the technology’s speed. Stakeholders should monitor how Billboard and rights organizations respond to AI‑tagged entries, as policy adjustments could reshape how chart success is measured and how revenue is distributed.
Key Takeaways
Treblo’s classifier identified “Rubberz” as almost certainly AI‑generated, marking the first known AI song to hit the Billboard Hot 100.
The tool’s claimed false‑positive rate of <0.01 % lends weight to the detection claim, though it only recognizes Treblo‑produced audio.
Fenix Flexin’s denial rests on low‑quality session footage, which has not convinced critics or the detection model.
The dispute highlights a looming need for industry‑wide standards on AI‑music disclosure and chart eligibility.
About the Source
This analysis is based on reporting by The Verge. Here is a short excerpt for context:
And you thought we were done with this one… | Image: Fenix Flexin We were pretty sure that Fenix Flexin's "Rubberz" was made using AI, but musician Medasin was confident that it was made using Treblo specifically. Now the company and a new detection tool seem to confirm it. On Monday, the company announced the open-source Treblo AI Music Classifier, which detects when a song was generated using Treblo, though not other AI tools. According to a blog post, it has a false positive rate of less than 1 in 10,000. That's not unimpeachable, but it's notable that the company's own Classifier determined that "Rubberz" was "very likely Treblo" with "high confidence," adding more fuel to the PR nightmare for Fenix. … Read the full story at The Verge.Read the original at The Verge
