Z.ai releases open-weight GLM-5.3

GLM-5.3 is now open-weight, available on Hugging Face and day-zero on Databricks, Together AI, Modular Cloud, and Tinker. It beats GLM-5.2 on coding evals like Terminal-Bench 3.0 and DeepSWE 1.1, with a 50% gain on Code Bench.