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Re: Livenerf: Has Opus 5.5 been nerfed yet?

We also have Nerf Bench:

https://www.bridgebench.ai/nerf-bench

They test it on launch day, then benchmark it against that. A deviation of above 10% is considered a change. They're currently tracking Opus 5.5 and GPT-6 Astra.

This bench famously detected a degradation of Opus 4.6 which Anthropic later blogged about. I personally think people sense nerfs more often than they happen and that it's often about honeymoon effects.

jug, 5 hours ago
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