Claude Opus 5 Launches: Anthropic's New Flagship Model
Anthropic released Claude Opus 5 today, a step-change improvement in the Opus tier that approaches the frontier intelligence of Claude Fable 5 at half the price.
BY FOUNDERBUILT AI NEWS
Anthropic has released Claude Opus 5, a major update to its Opus tier that delivers near-frontier intelligence at a significantly lower cost. The new model comes close to matching Claude Fable 5's capabilities while being priced at roughly half the cost, making it a compelling option for both everyday use and demanding professional workflows.
Opus 5 achieves state-of-the-art results on key benchmarks including Frontier-Bench and GDPval-AA, though it trails behind Mythos 5 on cybersecurity tasks. The model is designed for efficient daily use and is now the default model on Claude Max while also being the strongest model available on Claude Pro.
According to Anthropic's benchmarks, Opus 5 more than doubles its predecessor Opus 4.8's performance on Frontier-Bench v0.1 at a lower cost per task, and on CursorBench 3.2 at max effort it performs within 0.5 percent of Fable 5's peak score at half the cost, making it one of the best value models in its class.