OpenAI o1 System Card

OpenAI published the system card for o1 and o1-mini, with a deployment gate that requires post-mitigation risk scores of medium or lower. The listed Preparedness results are low for cybersecurity, medium for CBRN and persuasion, and low for model autonomy; testing covered o1-near-final-checkpoint and o1-dec5-release. The key point for practitioners is that OpenAI confirms large-scale RL for chain-of-thought reasoning, while the post does not disclose dataset mix or full benchmark scores.

Why it matters: This is a high-signal safety disclosure for a frontier OpenAI reasoning model, not routine collateral. HKR-K is strong because it publishes the deployment threshold, four Preparedness ratings, and test scope; HKR-R lands because practitioners track CoT safety, transparency, and 3