Welcome to Anthropic!

Building Safe and Beneficial AI!

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AI Research and Products That Put Safety at the Frontier

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Claude.ai

Meet Claude Opus 4

Claude Opus 4, our most intelligent AI model, is now available.

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Claude Opus 4 and Sonnet 4

Our most powerful models yet, pushing the frontier for coding and AI agents — and enabling Claude to handle hours of work across Claude and Claude Code.

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“If knowledge is power and we’re building machines that have more knowledge than us, what will happen between us and the machines?”
Deep Ganguli, Research Lead, Societal Impacts

At Anthropic, we build AI to serve humanity’s long-term well-being. While no one can foresee every outcome AI will have on society, we do know that designing powerful technologies requires both bold steps forward and intentional pauses to consider the effects. That’s why we focus on building tools with human benefit at their foundation, like Claude. Through our daily research, policy work, and product design, we aim to show what responsible AI development looks like in practice.

Core Views on AI Safety

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Anthropic’s Responsible Scaling Policy

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Anthropic Academy: Learn to build with Claude

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Featured

Tracing the thoughts of a large language model Interpretability Mar 27, 2025
Anthropic Economic Index Societal impacts Mar 27, 2025
Claude 3.7 Sonnet and Claude Code Product Feb 24, 2025
Claude’s extended thinking Product Feb 24, 2025
Alignment faking in large language models Alignment science Dec 18, 2024
Introducing the Model Context Protocol Product Nov 25, 2024

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