Anthropic Claude Update Version Claude Sonnet 4.6

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Update Summary

Claude Sonnet 4.6 launched on February 17, 2026 with broad capability upgrades across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. It also adds a 1M token context window in beta.

Update Details

New Features

  • Most capable Sonnet model yet, with upgraded skills across coding, computer use, long-context reasoning, agent planning, knowledge work, and design.
  • 1M token context window in beta.

Hints

  • Release date is February 17, 2026.
  • The 1M token context window is in beta.
Product Information

Vendor: Anthropic

Product: Claude

Version: Claude Sonnet 4.6

Release date: Feb 17, 2026

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