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Anthropic Releases Updated Claude AI Constitution

Published 22 January 2026

Anthropic, the AI safety-focused company founded by former OpenAI executives, released an updated constitution for its Claude language models on Wednesday during the World Economic Forum in Davos, Switzerland. The 84-page document, spanning about 23,000 words, outlines the ethical principles guiding Claude's reasoning and behavior, marking a significant expansion from its original 2023 version.

The new constitution shifts from a list of standalone rules to a more philosophical framework that explains the reasoning behind desired behaviors. Anthropic stated that this approach enables Claude to apply broad principles to novel situations, rather than rigidly following specific instructions. "If we want models to exercise good judgment across a wide range of novel situations, they need to be able to generalize to apply broad principles rather than mechanically following specific rules," the company explained in its announcement.

At its core, the document prioritizes four principles in sequence: Claude should be broadly safe by not undermining human oversight during AI development; broadly ethical by acting honestly and avoiding harmful actions; compliant with Anthropic's specific...

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