{"artifact":{"id":"art-constitutional-ai-20221215","canonical_url":"https://www.anthropic.com/news/constitutional-ai-harmlessness-from-ai-feedback","artifact_type":"alignment_research_release","title":"Constitutional AI / RLAIF","summary":"Anthropic presented a training method using principles, model-generated critiques and revisions, and reinforcement learning from AI feedback.","creator_entities":["Anthropic"],"released_at":"2022-12-15T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2022-Q4"},"created_at":"2026-10-03T14:45:10.910Z","updated_at":"2026-10-03T14:45:10.910Z"},"sources":[{"id":"src-anthropic-constitutional-ai-20221215","name":"Constitutional AI: Harmlessness from AI feedback","publisher":"Anthropic","url":"https://www.anthropic.com/news/constitutional-ai-harmlessness-from-ai-feedback","source_type":"research_announcement","primary_or_secondary":"primary","retrieved_at":"2026-10-03T14:26:11.000Z","published_at":"2022-12-15T00:00:00.000Z","author":"Anthropic","metadata":{"language":"en","jurisdiction":"global","time_precision":"day"},"created_at":"2026-10-03T14:45:10.905Z","updated_at":"2026-10-03T14:45:10.905Z"},{"id":"src-arxiv-constitutional-ai-20221215","name":"Constitutional AI: Harmlessness from AI Feedback","publisher":"arXiv","url":"https://arxiv.org/abs/2212.08073","source_type":"paper_preprint","primary_or_secondary":"primary","retrieved_at":"2026-10-03T14:26:11.000Z","published_at":"2022-12-15T06:19:23.000Z","author":"Yuntao Bai et al.","metadata":{"language":"en","jurisdiction":"global","time_precision":"second"},"created_at":"2026-10-03T14:45:10.906Z","updated_at":"2026-10-03T14:45:10.906Z"}]}