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.

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 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.

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

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

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.

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

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.

Claude (AI) ... Claude is a series of large language models (LLMs) developed by American software company Anthropic. Claude was released as an AI -based chatbot in March 2023. It is also used in AI-assisted software development.

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