最先端AIの優位期間が1年から7週間に縮小した理由
Epoch AIのデータによると、モデルの優位期間はGPT-4の12か月から中央値わずか7週間に短縮。新リリースをめぐる競争の激化と優位性の縮小を示している。
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.