用户称 Opus 5.5 于 11 月 3 日推理模式突变，疑似被削弱
作者：Shane Melaugh (@shanemelaugh)原标题：Is Opus 5.5 nerfed? Thinking patterns changed on November 3
42AI 研判分
有用户称，用 Gemini 4 Argon 分析 1,400 条 Claude Code 会话后发现，Opus 5.5 在 11 月 3 日推理方式出现明显变化，但模型名称未变，疑似被“削弱”。该说法目前仅为个人观察，未提供可验证的评测数据或官方说明。
报道正文
Shane Melaugh (@shanemelaugh) · 2026-11-07 22
is Opus 5.5 nerfed?
I just had Gemini 4 Argon analyze 1,400 Claude Code sessions and it found that on November 3, something definitely happened.
the model name didn't change, but the way it does reasoning took a sharp turn.
