Creative Commons CC0 1.0

Anthropic Publishes New Claude Constitution Under CC0 License

Anthropic has released a new foundational 'constitution' document that directly shapes Claude's values and behavior during training, replacing a previous list of standalone principles with a holistic explanatory framework. The document is written primarily for Claude itself, explaining the reasoning behind desired behaviors rather than just specifying rules, with the goal of enabling better generalization to novel situations. It establishes a priority hierarchy: broadly safe, broadly ethical, compliant with Anthropic guidelines, and genuinely helpful. The constitution is released under Creative Commons CC0 1.0, allowing unrestricted use, and plays a central role in generating synthetic training data.