Safety
One of the key techniques OpenAI used to teach o3‑mini to respond safely is deliberative alignment, where they trained the model to reason about human-written safety specifications before answering user prompts. Similar to OpenAI o1, they found that o3‑mini significantly surpasses GPT‑4o on challenging safety and jailbreak evaluations. Before deployment, they carefully assessed the safety risks of o3‑mini using the same approach to preparedness, external red-teaming, and safety evaluations as o1.