A bare "你好" in Chinese triggered Claude's frontier-LLM safeguards and paused the session

menhguin · x · 2026-11-10

A user shared a Claude Code (v2.1.321, Opus 5.5) screenshot where simply typing "你好" in Chinese got flagged under [frontierllm] by the model's safeguards, pausing the session and offering to switch back to Opus 5. The in-app message admits Opus 5.5 has stronger safeguards that can misfire and that improvements are underway — a notable case of over-aggressive safety filtering.

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