[Anthropic Releases New AI Model Claude Sonnet 4.6] Anthropic released the new AI model Claude Sonnet 4.6. On February 17 local time, Anthropic announced the launch of the artificial intelligence model Claude Sonnet 4.6, stating that the model has achieved comprehensive upgrades in coding capabilities, computer operations, long-context reasoning, agent planning, knowledge work, and design fields. The beta version also includes a 1 million token context window.