GLM-5.3 introduces advanced coding capabilities with emergent cyber functions, enhancing performance in programming tasks. The model aims to improve efficiency and adaptability in various coding environments.

Workers AI runs inference for Moonshot's Kimi K-series and Z.ai's GLM models on GPUs in Cloudflare data centers. These models are large, long-context, and mixture-of-experts types, presenting challenges in efficient serving due to memory constraints.

GLM-5.2 has become the leading open weights model on the Artificial Analysis Intelligence Index, scoring 51. It matches the size of GLM-5.1 with 744 billion total parameters and 40 billion active parameters, but surpasses it by 11 points in the Intelligence Index v4.1.