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Is Opus 5.5 nerfed? New benchmark called LiveNerf measures this live

I’ve been tracking Opus 5.5 since day one to see if Anthropic is nerfing models. Everyday, I re-run its independent benchmarks like GPQA or SWE-bench and then keep track of it in a graph on the repo. As of now, no nerf is detected. I’ll continue monitoring in the coming months and if a nerf is dete…

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  1. 2026-09-27 23:20 · r/ClaudeAI
    Is Opus 5.5 nerfed? New benchmark called LiveNerf measures this live

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