Claude Sonnet 3.7

High-performance model with early extended thinking

Claude 3.7 Sonnet is an advanced AI assistant released in February 2025 that excels at complex reasoning, natural conversation, and content generation across various domains. It features an extended thinking mode for Pro users that enables deeper analysis and more thorough problem-solving. With knowledge up to October 2024 and specific updates through March 2025, it balances sophisticated capabilities with efficient response generation.