Portulans Institute波图兰研究所：2025年现有AI索引的最新技术报告（英文版）

It promises productivity gains, improved well-being and solutions to grand societal challenges1 . Given its growing impact, there is a pressing need for robust metrics to gauge its development and influence, and in turn inform discussion and decision making around AI. AI indexes have emerged as a response to this need - composite measures that systematically measures and tracks AI across various dimensions over time. The idea of an AI index was first proposed in research literature. Shoham (2