Opus 5.5 tentatively the world's smartest model, though slightly behind on world knowledge
AaronBergman18 · x · 2026-09-23
Aaron Bergman says that, very tentatively, Opus 5.5 is all things considered the world's smartest model — holding a slight edge in fluid reasoning, though with a slight deficit in world knowledge relative to Astra and Fable.
Related event: Opus 5.5 Ranks Among Smartest Models, Evaluator Says(2 posts)→
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