According to CoinMeta, Zhipu's next-generation model GLM-5.3 appears to have been leaked ahead of time, with search results for ZCode once including its page title as "Official GLM-5.3." ZCode is a programming tool developed by Zhipu for GLM, used for planning, coding, reviewing, and executing development tasks. However, upon visiting the official website, the page still displayed "Official harness." Zhipu's model release records, development documentation, and API lists have only been updated up to GLM-5.2, with no mention of GLM-5.3. The existing information only proves that "GLM-5.3" was once included in the search index of the ZCode page; it may have been a test title or an early configuration. Li Zixuan, the global head of Zhipu z.ai, publicly asked users yesterday whether GLM-5.2 is still sufficient given the frequent release of new models, which seems to be a strategy to build anticipation for the launch of new models.