Anthropic: Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

Released Feb 17, 20261,000,000 context

$3/M input tokens$15/M output tokens$10/K web search

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 memory, polished document creation, and confident computer use for web QA and workflow automation.

Anthropic: Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

Released Feb 17, 20261,000,000 context

$3/M input tokens$15/M output tokens$10/K web search

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 memory, polished document creation, and confident computer use for web QA and workflow automation.

Recent activity on Claude Sonnet 4.6

Total usage per day on OpenRouter

Prompt

95.7B

Completion

1.11B

Reasoning

59.7M

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.