Anthropic Unveils Claude 3.7 Sonnet, First Hybrid Reasoning AI Model

The new model combines rapid responses with step-by-step reasoning and introduces a coding assistant, Claude Code, for developers.

Claude 3.7 Sonnet is the first AI model to integrate both quick-response capabilities and extended reasoning within a single system.
Its extended thinking mode improves performance on complex tasks like coding, math, and instruction-following, though it is available only to paid users.
Anthropic released Claude Code, an agentic coding tool capable of editing files, running tests, and committing code to GitHub, currently in limited preview.
The model achieved top scores on benchmarks for real-world coding tasks, outperforming competitors like OpenAI and DeepSeek in several categories.
Anthropic is finalizing a $3.5 billion funding round, valuing the company at $61.5 billion, to support further AI advancements.