Users report triggering Opus 5.5 ML R&D safety classifiers, Yacine reacts

yacineMTB · x · 2026-10-02

Multiple users report repeatedly triggering the ML R&D safety classifiers on Anthropic's model (referred to as Opus 5.5), asking each other what work is getting flagged. Prominent developer Yacine replied amused.

The exchange indirectly confirms Anthropic deploys classifiers for ML research tasks that users are hitting. The Opus 5.5 name is unconfirmed.

Related event: Users report Opus 5.5 safety guardrails over-triggering(4 posts)→

Original post →

More from Models

Models channel →