On September 21, the latest data from OpenRouter revealed that the total global call volume for AI large models reached 129 trillion Tokens in the past week (spanning from September 14 to 20), reflecting a 1.57% increase from the previous week. Among these, China’s AI large models achieved a weekly call volume of 67.46 trillion Tokens, marking a notable 10.28% rise week-on-week. In contrast, U.S. AI large models experienced a decline, with their weekly call volume dropping to 14.21 trillion Tokens, a 34.7% decrease compared to the previous week. China’s AI large models have now outpaced those of the U.S. in weekly call volume for 21 consecutive weeks, securing the top spot globally. Notably, among the top five AI large models by global call volume, China occupies four positions. Specifically, DeepSeek V4.1-Flash surged to the forefront, recording a weekly call volume of 15.8 trillion Tokens, a staggering 219% increase from the week prior.