Anthropic: Claude Sonnet 4.6

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Match confidence: UnmatchedSource type: model_only

Context window

Arena overall rank

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Input price

$0.000 / 1M

Output price

$0.000 / 1M

Identifiers & provenance

Primary ID: anthropic/claude-sonnet-4.6
OpenRouter ID: anthropic/claude-sonnet-4.6
Canonical slug: anthropic/claude-4.6-sonnet-20260217

Source semantics

Arena rank is a human-preference leaderboard signal, not a universal truth metric.
OpenRouter usage/popularity reflects adoption/traffic, not benchmark quality.
Pricing fields may differ by provider and can include extra modes beyond prompt/completion.

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Description

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.

Raw fields snapshot

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