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Anthropic Claude Sonnet Latest

Claude Sonnet 5

~anthropic/claude-sonnet-latest

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This model always redirects to the latest model in the Anthropic Claude Sonnet family.

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Quick Start

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.

Top models used by Anthropic Claude Sonnet Latest

No usage data available yet.

About Anthropic Claude Sonnet Latest

OpenRouter makes Anthropic Claude Sonnet Latest available through a unified, OpenAI-compatible API using the model ID ~anthropic/claude-sonnet-latest.

Anthropic Claude Sonnet Latest accepts text, images and files such as PDFs and returns text. It has a 1,000,000-token context window and a maximum output of 128,000 tokens.

On OpenRouter, Anthropic Claude Sonnet Latest costs $2.00/M input tokens and $10.00/M output tokens, with separate rates for Cache Read at $0.20/M tokens, Cache Write at $2.50/M tokens, Cache Write (1h) at $4.00/M tokens and Web Search at $10.00/1K calls. Effective pricing can be lower when prompt caching applies. It was released on April 27, 2026.

More models from Anthropic

  • Claude Opus 5 (Fast)
  • Claude Opus 5
  • Claude Fable 5

Frequently asked questions

This model always redirects to the latest model in the Anthropic Claude Sonnet family.

Anthropic Claude Sonnet Latest costs $2.00/M input tokens and $10.00/M output tokens, with separate rates for Cache Read at $0.20/M tokens, Cache Write at $2.50/M tokens, Cache Write (1h) at $4.00/M tokens and Web Search at $10.00/1K calls.

Anthropic Claude Sonnet Latest has a 1,000,000 token context window. It supports up to 128,000 completion tokens.

Yes. Anthropic Claude Sonnet Latest accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Anthropic Claude Sonnet Latest accepts text, images and files such as PDFs as input and returns text.

Claude Opus 5 (Fast), Claude Opus 5, Claude Fable 5 and 13 more are other text models from Anthropic.

Anthropic Claude Sonnet Latest was released on April 27, 2026.