Hong Kong-listed Zhipu Technology Co., Ltd. surged over 45% intraday after the company announced it would open-source its latest flagship model, GLM-5.2.

According to Huoxun Finance, Zhipu (02513.HK), a Hong Kong-listed company, saw a significant surge in its stock price today, rising over 45% at one point to a high of HK$1620.00. The gains have since narrowed to approximately 28%, currently trading at HK$1404.00. In response to the unusual stock price movement, Zhipu issued an announcement stating that it was unaware of any inside information requiring disclosure. In related news, following the global ban on the most powerful overseas competitor's model due to government regulations, Zhipu launched its new flagship model, GLM-5.2, which supports 1MB long contexts. Next week, it will be fully open-sourced under the MIT license, aiming to attract global developers with an open strategy. This is expected to boost the volume of calls to the company's open platform and API services.