Deliberative alignment: reasoning enables safer language models

OpenAI published deliberative alignment on Dec 20, 2024, training o-series models to reason over written safety specs before answering. The post says o1 uses this method and needs no human-labeled CoT or answers; it says o1 beats GPT-4o on internal and external safety benchmarks, but the post does not disclose exact scores.

Why it matters: HKR-H/K/R all land: the angle is novel, the mechanism is concrete, and the topic hits a live industry debate on reasoning-model safety. I keep it at 83 because the post excerpt does not disclose key benchmark scores, so it stays in the high-quality research band, not must-write.