Introducing Claude Opus 5
Anthropic has released Claude Opus 5, a frontier-class model priced at half the cost of Claude Fable 5 while achieving state-of-the-art results on coding and knowledge work benchmarks including Frontier-Bench and GDPval-AA. On ARC-AGI 3, Opus 5 scores three times higher than the next-best model; on Zapier AutomationBench, its pass rate is approximately 1.5× competitors at equivalent cost. Early enterprise adopters report material gains in financial modeling (9 percentage points higher accuracy, 60% less time), due diligence (17% improvement), legal agent work (26% fewer tokens at comparable quality), and scientific research workflows. The model introduces configurable effort settings allowing organizations to trade off intelligence against speed and token cost, and becomes the default model on Claude Max.