VentureBeat · startups· 4 min
Anthropic launches Claude Opus 5, a cheaper AI model for coding, agents and enterprise workflows
Anthropic's new AI model, Claude Opus 5, is designed for enterprise workflows and coding tasks, offering nearly all the intelligence of its top-of-the-line model, Fable 5, at half the cost. Opus 5 is priced at $5 per million input tokens and $25 per million output tokens, making it a more economically viable option for businesses.
The model is particularly strong in coding and knowledge-work evaluations, setting new state-of-the-art marks on benchmarks like Frontier-Bench and GDPval-AA. It surpasses Fable 5's best result on OSWorld 2.0, a computer-use benchmark, at just over a third of the cost.
While Opus 5 remains behind rival models in certain domains, such as cybersecurity tasks and biology research, it excels in bounded tasks with specific outcomes, where its efficiency and cost-effectiveness shine. Anthropic emphasizes that Opus 5 is ideal for daily use, while Fable 5 is better suited for long-horizon, autonomous jobs.
The company's charts highlight performance at a given cost rather than peak performance alone, and early customers have reported significant improvements in efficiency, accuracy, and speed. For example, Harvey, a legal AI company, achieved similar performance to Opus 4.8's maximum-reasoning mode while generating 26% fewer tokens on average.
Anthropic's business model is centered around API and enterprise usage, where inference costs have become a board-level line item. The company is selling a behavioral story, showcasing Opus 5's ability to verify its work and iterate until it succeeds, which is a crucial capability for enterprises.