What happened in China In a significant development for the burgeoning AI sector, Doubao, a prominent AI product in China, experienced a substantial reduction in its monthly active user base after it introduced paid features. This shift from a free-access model to a subscription-based service led to a notable decline in user engagement, underscoring the challenges of monetizing AI applications in a highly competitive market where users have grown accustomed to free services. Separately, but indicative of the dynamic and often volatile nature of the Chinese tech landscape, Luo Yonghao, the founder of Smartisan Technology, resigned from his position as executive director of Smartisan Software Company. This move marks another chapter in the career of a well-known figure in Chinese tech, whose ventures have often captured public attention, and reflects the constant churn and evolution within the industry, where even established leaders frequently transition roles or companies. ## How…