The weekly usage of China's large AI models dropped by 23.8% week-on-week, with the US surpassing China for the first time in nearly two months.

According to the latest data from OpenRouter, the total global AI large-scale model calls last week (April 13-19) amounted to 20.6 trillion tokens, declining for the second consecutive week. Among the listed AI large-scale models, the weekly call volume of Chinese AI large-scale models dropped to 4.441 trillion tokens, also declining for the second consecutive week, a 23.77% decrease compared to the previous week; while the weekly call volume of US AI large-scale models was 4.908 trillion tokens, a 20.62% increase week-on-week. This marks the first time in nearly two months that the weekly call volume of US AI large-scale models has surpassed that of China. Four of the top nine global AI large-scale models in terms of call volume last week were from China. Among them, DeepSeek V3.2 ranked second with a weekly call volume of 1.28 trillion tokens; MiMo-V2-Pro ranked fourth with a weekly call volume of 1.15 trillion tokens, a 90% increase compared to the previous week; two MiniMax models made the list, with MiniMax M2.5 ranking sixth with a weekly call volume of 1.05 trillion tokens; and MiniMax M2.7 ranking seventh with a weekly call volume of 0.961 trillion tokens, a 19% decrease compared to the previous week.