Abstract:The accurate identification and measurement of ambidextrous innovation (exploitative innovation and exploratory innovation) remain unresolved in academic research. This paper clarifies the connotation and extension of the ambidextrous innovation concept, emphasizing that ambidextrous innovation focuses on enterprises' innovative behaviors relative to their existing technological capabilities. Building on traditional patent analysis methods, we introduce the dimension of technical content relevance to deconstruct exploratory innovation, thereby constructing a new method for identifying and measuring ambidextrous innovation in enterprises. Using 98 534 invention patent applications from 188 listed companies in the field of artificial intelligence (AI) in China, we implemented and tested the proposed method with the aid of Python programming tools and cosine similarity algorithms. The empirical results reveal that: (1)Exploitative innovation dominates. Most AI enterprises still primarily rely on exploitative innovation, with exploratory innovation accounting for only 14.10% of total patents. Among exploratory innovations, Type Ⅲ (the most exploratory) has the lowest proportion (2.12%), indicating that enterprises are more inclined to engage in less risky and less exploratory innovation activities. (2)AI technology broadens the horizons of exploratory innovation. As a universal technology with strong penetration capabilities, AI significantly broadens the exploratory innovation space for enterprises, empowering them to pursue new technological trajectories. (3)Ambidextrous innovation is a relative concept. The balance between exploitative and exploratory innovation determines the measurement scores, highlighting the importance of maintaining a strategic equilibrium between the two types of innovation. Based on these findings, this paper proposes management implications from the perspectives of government, enterprises, and social institutions. For policymakers, it is crucial to consider the dual dimensions of innovation when designing support policies. Enterprises should strategically balance exploitative and exploratory innovation to ensure both short-term profitability and long-term sustainability. Social institutions should pay more attention to enterprises' ambidextrous innovation capabilities when evaluating their innovation performance.