GLM 5.3

Z.ai has released GLM-5.3, an update to its large language model that targets complex coding and long-horizon agentic tasks. According to MarkTechPost's coverage of the release, GLM-5.3 runs on the same 743B base model as the previous GLM-5.2, with every reported improvement coming from scaled post-training — more task The reported gains land most heavily on the longest-horizon benchmarks. Terminal-Bench 3.0, which measures complex coding tasks, jumped from 4.6 to 28.3 in the new version. Cybersecurity performance also moved further than Z.ai expected, with CyberGym reaching a score of approximately 84. For developers evaluating GLM