Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...
anthropic/claude-sonnet-4.6Claude Sonnet 4.6 is an API model from Anthropic, released on Feb 17, 2026, with a context window of 1,000,000 tokens, pricing of $3 per million input tokens and $15 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 $0.045.
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 4.6 supports a context window of 1,000,000 tokens.
Claude Sonnet 4.6 is listed at $3 per million input tokens and $15 per million output tokens on OpenRouter.
Claude Sonnet 4.6 was published on Feb 17, 2026.
Claude Sonnet 4.6 accepts file, image, text input and produces text output.