GLM-5.2 (744B-A40B) from ZAI: open-source leader in coding. Solid 1M context via IndexShare (2.9x fewer FLOPs at 1M). Terminal-Bench 2.1: 81.0 (Opus 4.8: 85.0). SWE-bench Pro: 62.1. FrontierSWE: 74.4. Deploy via SGLang, vLLM, Transformers. MIT. HuggingFace: zai-org/GLM-5.2.