Claude Opus 5: Anthropic doubles performance at constant price, but lags behind Fable 5
Released on July 24, 2026, Claude Opus 5 maintains the pricing grid of Opus 4.8 ($5 / $25 per million tokens) while doubling the scores on Frontier-Bench v0.1 and achieving Fable 5 on CursorBench 3.2 at half the price. Anthropic's positioning: "frontier intelligence at half the cost."
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