Frontier-grade Claude at one fifth of Opus pricing. The default workhorse for most production traffic on the Anthropic API.
Claude Sonnet 4.6 is a multimodal AI model from Anthropic. It costs $3.000 per million input tokens and $15.000 per million output tokens (blended $6.600/M), with a 1M-token context window.
Claude Sonnet 4.6 costs $3.000 per million input tokens and $15.000 per million output tokens, for a blended reference rate of $6.600 per million tokens.
Claude Sonnet 4.6 supports up to 1M tokens of context (1,000,000 tokens).
Claude Sonnet 4.6 is well suited to Best price/performance in the Claude family, 1M-token context and Strong vision.
Claude Sonnet 4.6 is developed and served by Anthropic. It was released in Nov 2025.