Anthropic's Opus 5 Cut Tokens 17% but Cost More to Benchmark Than Opus 4.8
Anthropic released Claude Opus 5 on July 24 with per-token prices unchanged at $5 and $25 per million. Artificial Analysis measured its Intelligence Index run at $3,835.51 against $3,752.55 for Opus 4.8, even though the newer model generated 100 million tokens to its predecessor's 120 million. Opus 5 scored 61 on the Index, first among 187 models, and its run cost about 38% less than Fable 5's.
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