China AI startup Z.AI jumps on GLM-5.3-Flash model launch

Z.AI

27/08/2026 03:55

** Shares of Z.AI 2513.HK, formerly Knowledge Atlas Technology, jump 8.6% to HK$1,119, on track for biggest one-day pct gain since August 21 
** Stock touches the highest level since August 24
** Top pct gainer in the Hang Seng TECH Index .HSTECH, which rises 0.1%
** Chinese AI startup launches the GLM-5.3-Flash model, marking its first attempt to use a cluster of domestically produced chips to handle massive traffic, and the chips are connected via a high-bandwidth interconnect network developed in-house
** Since debut on January 8, stock up 853.5% from the offer price of HK$116.20 per share
** YTD, benchmark Hang Seng Index .HSI down 0.3%



 (Reporting by Donny Kwok)
 ((donny.kwok@thomsonreuters.com))