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

Claude Opus 4.8 An upgrade to Opus across coding, agentic tasks, and professional work, with the consistency to handle long-running work.

As a versatile coding assistant, Claude plans multi-step tasks, pulls in relevant context, and adapts its approach as your project evolves. Write programs through natural conversation and use...

We’re offering two versions of Claude today: Claude and Claude Instant. Claude is a state-of-the-art high-performance model, while Claude Instant is a lighter, less expensive, and much faster option.

Discover Claude 5, the breakthrough AI model with 200K context, superior coding abilities, and unmatched performance. Try Claude free today.

Claude (AI) ... Claude is a series of large language models 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. Claude is trained using "constitutional AI", a technique developed by Anthropic to improve ethical and legal compliance (AI ...

Claude is built on Constitutional AI, a framework that establishes ethical guidelines so the model behaves in line with human values.

As a versatile coding assistant, Claude plans multi-step tasks, pulls in relevant context, and adapts its approach as your project evolves. Write programs through natural conversation and use Claude to identify and fix errors faster. It scales from a single function to enterprise-level development.