On August 14, Zhipu made an official announcement regarding the release of its latest model, GLM-5.3. While the foundational architecture of the model remains consistent with its predecessors, its intelligence potential has been significantly elevated through the application of sophisticated post-training scaling techniques. These enhancements have notably augmented its programming capabilities. According to internal evaluations, GLM-5.3 demonstrates a 50% performance leap compared to its predecessor, GLM-5.2. In public benchmark tests, such as TerminalBench3.0 and Agents' LastExam (CLI), it has claimed the top spot among open-source models. The model weights are set to be accessible to the public two weeks following the release.