Sonnet 5.5 tops Artificial Analysis index, beating GPT-6 Astra by 3 points
haider1 · x · 2026-09-29
Citing the Artificial Analysis Intelligence Index, haider1 notes Anthropic's Sonnet 5.5 now scores 56, ahead of GPT-6 Astra (53) and GPT-6 Sol (48) across 10 evals — a notable lead for a mid-tier model.
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