Anthropic has introduced Claude Opus 5, an updated version of its hybrid reasoning model that promises better performance on coding and knowledge tasks, more capable agents, and sharper professional work.
Performance Gains at the Same Price
Announced on July 24, Claude Opus 5 offers greatly improved performance at the same cost as its predecessor, Opus 4.8, according to the company. Anthropic described the new model as thoughtful and proactive, coming close to the frontier intelligence of Claude Fable 5 at half the price. Opus 5 is now the default model on Claude Max and the strongest model available on Claude Pro.
On Frontier-Bench v0.1, Claude Opus 5 surpasses all other models and more than doubles Opus 4.8's performance at a lower cost per task, Anthropic said. On CursorBench 3.2, at maximum effort, Opus 5 performs within 0.5% of Fable 5's peak score, but at half the cost per task. The model also achieves greater performance at a given cost than all other models on high, xhigh, and max effort levels.
Pricing and Availability
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Claude Opus 5 is priced at $5 per million input tokens and $25 per million output tokens, matching the pricing of Opus 4.8. Developers can access Claude Opus 5 through the Claude API. Alongside the Opus 5 release, Anthropic also launched two updates in beta: mid-conversation tool changes on the Claude Platform and automatic fallbacks on the API.
Background on Anthropic
Anthropic is an AI safety and research company based in San Francisco, founded in 2021 by former OpenAI employees including Dario Amodei and Daniela Amodei. The company focuses on developing large language models that are reliable, interpretable, and steerable. Claude Opus 5 is the latest in a series of models that include Claude Opus 4.8 and the more advanced Claude Fable 5. The company has positioned its models as alternatives to offerings from OpenAI and Google, with an emphasis on safety and alignment.