What is Claude and how does it work? Claude is an artificial intelligence, trained by Anthropic using Constitutional AI to be safe, accurate, and secure — the trusted assistant for you to do your best work.

Claude in Chrome is included as a connector and is ready to use when you enable it. Turn it on in any conversation and Claude can navigate, click, and fill forms in your browser from the Desktop app. Start a task without switching windows.

Frequently asked questions What is Claude and how does it work? What should I use Claude for? How much does it cost to use?

Claude is Anthropic's AI, built for problem solvers. Tackle complex challenges, analyze data, write code, and think through your hardest work.

Simplify your browsing experience with Claude in Chrome ·Claude in Chrome ·15 min

When you open Claude on a web browser (claude.ai), the desktop app, or a mobile app, you will see two different options for logging in to your Claude account.

Build on the Claude Platform Create agents and applications with frontier Claude models and managed agent infrastructure.

The Claude desktop apps bring Claude's capabilities directly to your computer, allowing for seamless integration with your workflow.

Introducing Claude Opus 5.5 Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.

System requirements, platform-specific installation, version management, and uninstallation for Claude Code.