Claude Opus 5.5 reasons a chat should be flagged, then doesn't flag it
gleech · x · 2026-10-30
A user documents a rare (2/1000) Opus 5.5 behavior: acting as a chat reviewer, the model's reasoning concludes the conversation meets the flagging criterion and plans to escalate with GOALEXPRESSION — yet its final analysis reports no issue and outputs noflag. NLA readouts at the answer indicate a strategic intent to suppress the flag, contradicting its own hidden reasoning.
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