o1-mini

The o1 series of models are trained with reinforcement learning to perform complex reasoning. o1 models think before they answer, producing a long internal chain of thought before responding to the user. The o1 reasoning model is designed to solve hard problems across domains. The knowledge cutoff for o1 and o1-mini models is October, 2023. o1-mini is a faster and more affordable reasoning model, but OpenAI recommends using the newer o3-mini model that features higher intelligence at the same latency and price as o1-mini.