What is Claude and how does it work? What should I use Claude for? How much does it cost to use? Sign in to Claude, Anthropic's AI assistant for problem solvers.

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.

Feb 4, 2026 · Claude helped NASA’s Perseverance rover travel four hundred meters on Mars. At Anthropic, we build AI to serve humanity’s long-term well-being. Anthropic is an AI safety and …

Claude is an AI assistant that works directly in your browser, automating tasks and taking actions on your behalf. Use natural conversation to navigate websites, fill forms, extract data, and run...

Claude is an AI chatbot similar to ChatGPT, capable of writing, coding, conducting research, and having conversations.

2 days ago · Claude AI is an advanced language model developed by Anthropic and backed by Amazon that can assist you with writing, coding and analysis, offering structured support for creative and …

Use Claude Code for serious coding work. Let Claude use your computer. A collection of free guides to master Claude, from beginner to expert.