Anthropic: Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

Created 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

Created 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

664M

Completion

11.2M

Reasoning

1.31M

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