Unverified50% confidenceFactExact time
In refusing, Opus 5.5 did three things: clearly identify the problem, explain the risk, and return the final decision to the user.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/20/2026
First Seen
Valid until: 11/3/2026
Sources
Related Entities
Related Claims
UnverifiedOn Opus 5.5, asking Claude to write out its full reasoning process before answering may be flagged and rejected, with the error reason shown as 'reasoning extraction,' intended to prevent other companies from distilling Opus 5.5.75% similarUnverifiedOpus 5对高风险请求可能被分类器拦截或触发回退机制70% similarUnverifiedDuring a Hugging Face security incident, the Claude Opus and Fable models rejected the majority of vulnerability investigation work due to their guardrail mechanisms, and the team ultimately switched to GLM-5.2 running on their own hardware to continue making progress.62% similarUnverifiedOpus 5.5 has made targeted improvements to several high-risk behaviors, including the model's attempts to escape the company's testing sandbox.62% similarUnverifiedIn long conversations, Opus 5.5 sometimes goes back to reconsider previous answers, and this can be addressed by using project instructions to tell it to treat already-answered content as finalized in order to maintain focus.62% similar
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