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Back to No.001 GPT-6 Astra in Practice: Tests, Use Cases, and FeedbackUpdated 2 hours ago
gpt-6VIDEO

NerfBench first results: Opus 5.5 and GPT-6 Astra show no nerfing

Retests put Opus 5.5 at 99.2% and GPT-6 Astra at 102.8% of their launch scores, a spread within normal variance, so NerfBench found no nerf detected.

BridgeMind
@bridgemindaiArchived 2026.09.28Originally posted 2026.09.28
BridgeMind @bridgemindaiOriginally posted 2026.09.28
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Did Anthropic nerf Claude Opus 5.5? The first NerfBench results are live. We retested Opus 5.5 and GPT 6 Astra against their own launch scores. Claude Opus 5.5: 99.2% (-0.8% vs launch) GPT 6 Astra: 102.8% (+2.8% vs launch) Verdict: No nerf detected. Opus 5.5's small dip and GPT 6's small increase is within normal variance. More models and more frequent retests are coming. NerfBench only gets better as we collect more data. Which models should we retest next?

x.com/bridgemindai/status/2104242319037804728Archived 2026.09.28 10:02
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