~anthropic/claude-sonnet-latest
This model always redirects to the latest model in the Claude Sonnet family.
This model always redirects to the latest model in the Claude Sonnet family.
Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.
Guides, cookbooks, and tools for building with Anthropic: Claude Sonnet Latest on OpenRouter.
This model always redirects to the latest model in the Claude Sonnet family.
The Claude Sonnet Latest documentation on OpenRouter includes the Claude 5 Sonnet Migration Guide cookbook. The quickstart covers API keys and your first request, and the API reference lists every parameter.
Claude Sonnet Latest has no fixed price of its own. Each request is billed at the price of the model that serves it, so your cost depends on which model the request is routed to.
Claude Sonnet Latest can route to models with context windows of up to 1,000,000 tokens. The context length available to a request is that of the model that serves it.
Claude Sonnet Latest accepts text, images, and files such as PDFs as input and returns text.
Claude Opus 5.5, Claude Fable 5.1, Claude Opus 5 and 11 more are other text models from Anthropic.
Claude Sonnet Latest was released on April 27, 2026.