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Claude Sonnet 5.5 scores 56 on Artificial Analysis Intelligence Index

On the Artificial Analysis leaderboard, Claude Sonnet 5.5 scores 56, behind only Opus 5.5 and above GPT-6 Astra.

leo 🐾
@synthwaveddArchived 2026.09.29Originally posted 2026.09.29
Claude Sonnet 5.5 scores 56 on Artificial Analysis Intelligence Index
leo 🐾 @synthwaveddOriginally posted 2026.09.29
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Claude Sonnet 5.5 scores 56 on Artificial Analysis' Intelligence Index. That puts it behind only Claude Opus 5.5, above GPT-6 Astra and miles above GPT-6 Sol. Pretty nuts.

x.com/synthwavedd/status/2104635213200376021Archived 2026.09.29 10:15
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