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.

Anthropic's new everyday model Claude Opus 5 undercuts its own frontier product on cost and beats it almost everywhere that counts.

Anthropic has launched Claude Opus 5, a new AI model designed for coding, enterprise workflows and agentic tasks that delivers near-frontier performance at half the cost of Claude…

Most of the intelligence of Fable, at half the price.

And as a bonus, it doesn't require data retention