Anthropic Shipped Claude Opus 5 at the Same Price as the Old One. It Doubled the One Benchmark That Actually Predicts Whether an Agent Ships Working Code.
Opus 5 launched July 24 at unchanged pricing, but its Frontier-Bench score more than doubled Opus 4.8's. For a solo operator paying by the token, that's the rare upgrade that isn't a trade-off — here's whether it's worth re-pointing your stack.