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AI Glossary

What is Constitutional AI?

Anthropic's approach to AI safety using explicit principles.

By Council Research TeamUpdated: Jan 27, 2026

Definition

Constitutional AI trains models to follow explicit principles (a "constitution") about helpfulness and harmlessness. The AI critiques and revises its own outputs based on these principles, reducing need for human feedback.

Examples

1Claude's safety training
2Self-critique and revision
3Principle-based alignment

Why It Matters

Constitutional AI is why Claude behaves as it does—understanding it helps predict Claude's responses and limitations.

Related Terms

AI Safety Training

Techniques used to make AI helpful, harmless, and honest.

Large Language Model (LLM)

An AI system trained on vast text data to understand and generate human-like text.

Common Questions

What does Constitutional AI mean in simple terms?

Anthropic's approach to AI safety using explicit principles.

Why is Constitutional AI important for AI users?

Constitutional AI is why Claude behaves as it does—understanding it helps predict Claude's responses and limitations.

How does Constitutional AI relate to AI chatbots like ChatGPT?

Constitutional AI is a fundamental concept in how AI assistants like ChatGPT, Claude, and Gemini work. For example: Claude's safety training Understanding this helps you use AI tools more effectively.

Related Use Cases

Best AI for Coding

Best AI for Writing

AI Models Using This Concept

ClaudeClaudeChatGPTChatGPTGeminiGemini

See Constitutional AI in Action

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