Introducing Claude Sonnet 4.5—the best coding model in the world.
It's the strongest model for building complex agents. It's the best model at using computers. And it shows substantial gains on tests of reasoning and math.
Claude Sonnet 4 now supports 1 million tokens of context on the Anthropic API—a 5x increase.
Process over 75,000 lines of code or hundreds of documents in a single request.
Turn design into code with Claude Code + @figma.
Through MCP, Claude sees your mockup at the data level—component hierarchies, design tokens, auto-layout rules—and translates it into production-ready code.
Comparing Opus 4 to 4.1, side by side.
From sharper design mocks to smoother animations, 4.1 produces more polished outputs—with more depth and complexity.
Examples from us and the community:
Claude Desktop is now generally available.
New on Mac: Capture screenshots, click windows to share context, and press Caps Lock to talk to Claude aloud.
Introducing Claude Haiku 4.5: our latest small model.
Five months ago, Claude Sonnet 4 was state-of-the-art. Today, Haiku 4.5 matches its coding performance at one-third the cost and more than twice the speed.
We just shipped automated security reviews in Claude Code. Catch vulnerabilities before they ship with two new features:
- /security-review slash command for ad-hoc security reviews
- GitHub Actions integration for automatic reviews on every PR
