Anthropic debuts Claude Sonnet 4.6 with massive 1M token context
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February 18, 2026
Anthropic has released Sonnet 4.6, a new version of its midsized Sonnet model. This release aligns with the company’s four-month update cycle. Sonnet 4.6 will serve as the default model for users with Free and Pro plans. Key improvements highlighted by Anthropic for Sonnet 4.6 include advancements in coding capabilities, instruction-following, and general computer use. […]
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