Anthropic's Claude Opus 5 costs well below Fable 5 while matching or beating it across most benchmarks

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Anthropic's Claude Opus 5 leads the Artificial Analysis Intelligence Index with 61 points, edging out Claude Fable 5 and GPT-5.6 Sol.

The model scores highest in analytical quality and coding, and costs up to half as much as Fable 5 at lower reasoning tiers.

But the race at the top remains close.

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