OpenAI Deep Research

**Claude 3.7 Sonnet** is Anthropic’s smartest and most transparent AI model to date. With hybrid reasoning, developer-oriented features, and agent-like capabilities, it marks a major evolution in general-purpose AI. Whether you're writing code, analyzing data, or solving tough problems, Claude 3.7 offers both speed and thoughtful depth.

Claude 4 is a suite of advanced AI models by Anthropic, including Claude Opus 4 and Claude Sonnet 4. These models are a significant leap forward, excelling in coding, complex reasoning, and agent workflows.

The open source AI model you can fine-tune, distill and deploy anywhere. Our latest models are available in 8B, 70B, and 405B variants.

Today, we're announcing the Claude 3 model family, which sets new industry benchmarks across a wide range of cognitive tasks. The family includes three state-of-the-art models in ascending order of capability: Claude 3 Haiku, Claude 3 Sonnet, and Claude 3 Opus.