Artificial Analysis index: Sonnet 5.5 overtakes GPT-6 Astra

Chubby♨️ @kimmonismusOriginally posted 2026.09.29

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Seriously, this is insane. Claude Sonnet 5.5 Max ranks second on the Artificial Analysis Intelligence Index, even ahead of GPT-6 Astra Max and just a bit below of Opus-5.5. OpenAI needs to deliver tomorrow.

This post quotes another post: “Claude Sonnet 5.5 scores 56 on Artificial Analysis Intelligence Index”