OpenAI's latest model, 03, has achieved groundbreaking results, surpassing benchmarks that were expected to last for decades. The model's ability to reason and solve complex problems is attributed to its reinforcement learning approach, which scales up from previous models without any special ingredients. This advancement suggests that any challenge susceptible to reasoning can eventually be overcome by the O Series models. For instance, 03 achieved over 25% accuracy on the Frontier Math benchmark, a significant leap from the less than 2% accuracy of previous models. This benchmark includes extremely difficult mathematical problems that even professional mathematicians struggle with. Additionally, 03 has excelled in competitive coding, ranking among the top global competitors and outperforming 99.95% of humans. However, the model still faces challenges in areas that are harder to benchmark, such as personal writing and tasks without objectively correct answers. Despite these limitations, the progress from 01 to 03 in just three months highlights the rapid advancements in AI capabilities. The discussion also touches on the implications for AI safety and the need for scalable oversight as AI models become more intelligent.