GLM 5.2
Released on June 13, 2026
Changes from previous version
Extends GLM-5 from a 200K-class window to a solid 1M-token context, with IndexShare cutting long-context indexer compute and large gains on Terminal-Bench 2.1 (81.0 vs 63.5 on GLM-5.1) and DeepSWE (46.2 vs 18).
Release Summary
Zhipu AI's open-weight flagship for long-horizon coding after GLM-5. Adds a usable 1M-token context via IndexShare sparse attention, MIT-licensed 753B MoE weights (40B active), and a jump to 81.0 on Terminal-Bench 2.1 and 62.1 on SWE-bench Pro. Rolled out first on the GLM Coding Plan, then the API and Hugging Face.
Timeline
Official announcement and open weights
Z.ai publishes the GLM-5.2 research post and MIT-licensed weights on Hugging Face and ModelScope.
GLM-5.2 on Coding Plan
Z.ai rolls out GLM-5.2 to all GLM Coding Plan users with 1M-token context and High/Max thinking effort.