Skip to content
  12.  
    13. © 2023 – 2025 OpenRouter, Inc

    Anthropic: Claude Opus 4

    anthropic/claude-opus-4

    Created May 22, 2025200,000 context
    $15/M input tokens$75/M output tokens$24/K input imgs

    Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in software engineering, achieving leading results on SWE-bench (72.5%) and Terminal-bench (43.2%). Opus 4 supports extended, agentic workflows, handling thousands of task steps continuously for hours without degradation.

    Read more at the blog post here

    Providers for Claude Opus 4

    OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

    Performance for Claude Opus 4

    Compare different providers across OpenRouter

    Apps using Claude Opus 4

    Top public apps this week using this model

    Recent activity on Claude Opus 4

    Total usage per day on OpenRouter

    Uptime stats for Claude Opus 4

    Uptime stats for Claude Opus 4 across all providers

    Sample code and API for Claude Opus 4

    OpenRouter normalizes requests and responses across providers for you.

    OpenRouter provides an OpenAI-compatible completion API to 400+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

    In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

    Using third-party SDKs

    For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

    See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.