Anthropic

Constitutional AI Paper

Building Safeguards for Claude

Responsible Scaling Policy

Core Views on AI Safety

Claude's Character

Claude Mythos Preview System Card

Claude 2 Model Card

Claude Opus 4.6 System Card

Claude Haiku 4.5 System Card

Claude Opus 4.1 System Card

Claude Sonnet 4.6 System Card

Claude 3.5 Model Card Addendum

Claude 3.5 Haiku Addendum

Claude 3.7 Sonnet System Card

Claude Fable 5 & Mythos 5 System Card

Claude 4 System Card

Claude Opus 4.7 System Card

Claude Opus 4.5 System Card

Claude Opus 4.8 System Card

Claude 3 Model Card

Claude Sonnet 4.5 System Card

Acceptable Use Policy