AI Matters
Why it matters
Claude Opus 5 tops an AI benchmark index at a lower price
The Decoder Anthropic's Claude Opus 5 costs well below Fable 5 while matching or beating it across most benchmarks
Claude Opus 5 leads the Artificial Analysis Intelligence Index with 61 points, ahead of Claude Fable 5 and GPT-5.6 Sol, while costing up to half as much.
Why it matters
Cheaper, high-performing models can lower costs for the apps and services people already use that rely on AI.
Latest brief · Jul 25, 2026