Anthropic has launched Claude Sonnet 4.6, an update to the company’s hybrid reasoning model that brings improvements in coding consistency and instruction following, Anthropic said.
Introduced February 17, Claude Sonnet 4.6 is a full upgrade of the model’s skills across coding, computer use, long-context reasoning, agent planning, design, and knowledge work, according to Anthropic. the model also features a 1M token context window in beta.
With Claude Sonnet 4.6, improvements in consistency, instruction following, and other areas have made developers with early access prefer this release to its predecessor, Claude Sonnet 4.5, by a wide margin, according to Anthropic. Early Sonnet 4.6 users are seeing human-level capability in tasks such as navigating a complex spreadsheet or filling out a multi-step web form, before pulling it all together across multiple browser tabs, said Anthropic. Performance that previously would have required an Anthropic Opus-class model—including on real-world, economically viable office tasks—now is available with Sonnet 4.6. The model also shows a major improvement in computer use skills compared to prior Sonnet models, the company said.
