By midday China A-shares were sharply lower. Shanghai Composite -2.14%, Shenzhen Composite Index -3.04%, ChiNext Index -3.72%. Combined Shanghai/Shenzhen turnover CNY2.43 tln, up CNY3.3 bln vs prior session. Glass-substrate names outperformed, with Kaisheng Technology nearing the daily limit. Select chip stocks were active; Tongcheng New Material and others hit limit up. Lithography-machine plays were firm, with Xinlai Yingcai and Haili stocks touching limit. Non-ferrous metals, pharmaceuticals

VitaBench 2.0, open-sourced by Meituan LongCat, is the first benchmark targeting long-term dynamic user modeling in real-world scenarios. It systematically evaluates large language models' ability to deliver personalization and proactivity across extended, real-time user interactions.

Zhongtai Securities co-head of research Wang Fang said at a forum that market trading this year has focused on supply-chain shortages within the AI theme, a pattern underpinned by profitability. China’s electronics sector delivered Q1 profit growth that far outpaced revenue, and leading indicators such as inventories remain healthy. Wang said large-model vendors are expanding rapidly; an inference-driven surge and widespread Agent deployment will support sustained high capex in the AI sector, while upstream bottlenecks persist, strengthening the case for durable industry growth.