Users Report Changed Thinking Patterns in Claude Opus 5.5 After November 3

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A post on X by user Shane Melaugh raised the question of whether Claude Opus 5.5 has been nerfed, meaning its performance has been deliberately reduced. The poster claims the model's thinking patterns shifted around November 3. The item was shared on Hacker News, where it gathered 29 points and 15 comments. The source material offers no further technical detail or official confirmation from the model's developer about any change.

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