OpenAI unveils 'o3' reasoning models with groundbreaking results in benchmarks
OpenAI unveiled its latest reasoning model, o3, on the last day of its 12-day "shipmas" event. The new model is an improved version of the previously released o1 "reasoning" model. Notably, the o3 is a model family, similar to o1. There's o3 and a compact version called o3-mini, which has been fine-tuned for specific tasks.