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.

Log in to Claude or create an account to start using the web app online. Hand off tasks, write, analyze, and code with Anthropic’s AI assistant.

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.

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 is the AI assistant that gets work done. Hand off tasks, turn ideas into decks, spreadsheets and prototypes, and run scheduled tasks.

claude.ai

What is Claude? Claude is a large language model (LLM) built by Anthropic. It's trained to be a helpful, honest, and harmless assistant with a conversational tone.