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Claude Opus 5.5 reportedly scores 94.2% on NerfBench, within normal variance
BridgeMind AI says Opus 5.5 was scoring above its launch level a day earlier but cautions that the dip is not yet evidence of a nerf.
TLDR
On October 2, BridgeMind AI reported that Claude Opus 5.5 had dropped to 94.2% on NerfBench after scoring above its launch level the day before. It listed GPT 6 Astra at 98.0%, Sonnet 5.5 at 100.9% and GPT 6.1 Sol at 106.7%. BridgeMind AI said Opus 5.5’s score remained within normal variance, so it could not yet call the drop a nerf.
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