Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
anthropic/claude-sonnet-5Claude Sonnet 5 is an API model from Anthropic, released on Jun 30, 2026, with a context window of 1,000,000 tokens, pricing of $2 per million input tokens and $10 per million output tokens. It accepts file, image, text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.03.
Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.
Claude Sonnet 5 supports a context window of 1,000,000 tokens.
Claude Sonnet 5 is listed at $2 per million input tokens and $10 per million output tokens on OpenRouter.
Claude Sonnet 5 was published on Jun 30, 2026.
Claude Sonnet 5 accepts file, image, text input and produces text output.