为何最前沿 AI 模型的统治力从 1 年缩水至 7 周
epoch ai 数据显示，模型霸主的统治时长从 gpt-4 的 12 个月降至中位数的 7 周，这标志着竞争白热化及新发布模型优势的缩减。
research from epoch ai highlights a drastic reduction in the longevity of state-of-the-art ai models, with gpt-4 holding the top spot for about a year compared to the current median of just seven weeks. since february 2024, the lead position has changed hands 17 times, with openai's o1 holding the second-longest reign at only three months. this shift suggests the market has moved from a single dominant outlier to a cycle of rapid, iterative improvements where labs trade advantages quickly. it signals that building a sustainable moat around model capability is becoming increasingly difficult as labs release updates more frequently.