Sign in - Claude 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 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
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Claude Opus 4. 8 \ Anthropic Claude Opus 4 1 is a drop-in replacement for Opus 4 that delivers superior performance and precision for real-world coding and agentic tasks It handles complex, multi-step problems with more rigor and attention to detail
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