---
title: "Constitutional AI"
description: "1 posts about Constitutional AI, summarised, each linking to the original."
---

# Constitutional AI
> 1 posts about Constitutional AI, summarised, each linking to the original.

## Articles

### [Claude's constitution](https://yomu.fyi/post/claude-s-constitution.md)
- Company: [Anthropic](https://yomu.fyi/company/anthropic.md)
- Published: Jan 21, 2026
- Type: Explainer

Claude’s constitution describes how explicit principles can guide a language model’s behavior instead of relying on values implicitly determined through large-scale human feedback. The approach uses AI feedback in two training phases: the model first critiques and revises responses using the principles, then reinforcement learning selects the more harmless output using AI-generated evaluations. The post says Constitutional AI produced a Pareto improvement in tests, with the model responding more appropriately to adversarial inputs while remaining helpful and not evasive; harmlessness results came without human harmlessness data. The constitution draws on the UN Declaration of Human Rights, safety practices, other AI-lab principles, global platform guidelines, and attempts to include non-Western perspectives, while remaining an iterative, adjustable document.