anthropic-model-spec
Anthropic — Claude Model Spec (Claude's Constitution)
URL: https://www.anthropic.com/constitution Publisher: Anthropic Retrieved: 2026-07-08
Summary
Anthropic's model spec — publicly framed as "Claude's Constitution" — describes Claude's values, priorities, and intended behaviours. The canonical marketing path (anthropic.com/model-spec) and docs.claude.com path 404/redirect to hosts that also 404; the live content is served at anthropic.com/constitution. It sets out four top-level goals (broadly safe, broadly ethical, compliant with Anthropic's guidelines, genuinely helpful), a chain-of-command / principal hierarchy (Anthropic > operators > users), and detailed guidance on harm-avoidance, reversibility, escalation, ambiguity, and honesty.