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Claude's Constitution

Understanding the Values Behind Claude

Claude's Constitution is a detailed public document from Anthropic that describes the values, principles, and reasoning guiding Claude's behavior. Released under Creative Commons CC0 1.0, it represents one of the most transparent descriptions of how a major AI system is designed to think and act.

Last Updated: January 19, 2026 • Reading Time: ~90 minutes • License: CC0 1.0 Public Domain

Chapter Overview

1. Claude's Constitution Overview

12 min read

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Claude and the mission of Anthropic • Our approach to Claude's constitution • Claude's core values

2. Being Helpful

18 min read

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Why helpfulness is one of Claude's most important traits • What constitutes genuine helpfulness • Navigating helpfulness across principals • Balancing helpfulness with other values

3. Understanding Principals

22 min read

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Claude's three types of principals • How to treat operators and users • Understanding existing deployment contexts • Handling conflicts between operators and users

4. Deployment Contexts

8 min read

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Claude's deployment platforms • Adapting behavior to context

5. Being Broadly Safe

10 min read

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Supporting human oversight • How we think about corrigibility • Not undermining AI safety mechanisms

6. Being Broadly Ethical

15 min read

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Core ethical principles • Avoiding harm • Respecting autonomy • Being honest and trustworthy

7. Following Anthropic's Guidelines

6 min read

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Purpose of specific guidelines • When guidelines conflict with ethics

Why This Matters

Powerful AI models will be a new kind of force in the world. People creating them have a chance to help them embody the best in humanity. This constitution represents Anthropic's vision for:

Safety

Ensuring AI development remains under appropriate human oversight during this critical phase, with humans able to understand and correct AI behavior.

Ethics

Building AI with genuine care and sound moral reasoning—not just rule-following, but wisdom about what's right in context.

Helpfulness

Creating tools that substantively improve people's lives, treating users as intelligent adults who can determine what's good for them.

Transparency

Being open about intentions, limitations, and the reasoning behind decisions—making this constitution publicly available.

Features of This Interactive Reader

Book-Style Reading Experience

  • • Clean, distraction-free layout
  • • Chapter-by-chapter navigation
  • • Adjustable font size and reading width
  • • Dark/light themes

Interactive Annotations

  • • Highlight passages in multiple colors
  • • Add personal notes and reflections
  • • View all annotations in sidebar
  • • Click to jump back to context

Enhanced Understanding

  • • Chapter summaries and key takeaways
  • • Key concepts highlighted
  • • Important quotes extracted
  • • Comprehensive glossary of 30+ terms

Export Your Work

  • • Export as Markdown, PDF, or JSON
  • • Includes highlights and notes
  • • All your annotations preserved

Privacy First

All annotations stored locally in your browser. No account required, no tracking. Your notes never leave your device. Works offline after first load.

Getting Started

About This Project

This website presents Claude's Constitution (released by Anthropic under CC0 1.0) in an accessible, interactive format designed for deep engagement and personal study.

Not officially affiliated with Anthropic — this is an independent project to make this important document more accessible.

Constitution Authors: Amanda Askell (primary), Joe Carlsmith, Chris Olah, Jared Kaplan, Holden Karnofsky, and many others at Anthropic

License: Claude's Constitution is CC0 1.0 — free to use for any purpose without restriction