Sonnet 4.6
The most capable Sonnet model yet
In plain words
Claude Sonnet 4.6 is an AI model designed for developers and knowledge workers who need advanced reasoning and coding capabilities. It offers improvements across coding, computer use, long-context reasoning, and agent planning, with a 1M token context window in beta. The model delivers performance approaching more expensive alternatives while remaining practical for a wider range of tasks, with particular gains in computer automation skills.
written from the facts on this page · September 2026
From the sources
Claude Sonnet 4.6 is a full upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. It also features a 1M token context window in beta. Sonnet 4.6 has improved on benchmarks across the board. It approaches Opus-level intelligence at a price point that makes it practical for far more tasks. It also shows a major improvement in computer use skills.
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