GLM-5.2
Z.aiZ.ai's flagship open-weights frontier model (mid-June 2026, successor to GLM-5.1), built for long-horizon agentic and coding tasks. A sparse MoE (~753B total params) with a 1M-token context, introducing 'IndexShare' sparse attention (~2.9x FLOP cut at 1M context) and improved speculative decoding. Positioned as a leading open-weights coding model.
MIT-licensed open weights (HF model card + LICENSE, (c) Zhipu AI 2026). ~753B-param MoE, 1M context. Consolidated on 2026-07-29 from glm-4, glm-4-6, glm-4-9b, glm-5-1; openness follows glm-5-2, the release that currently governs. See docs/reference/identity.md. GLM-5.2 has pulled away sharply since July and now supplies most of the family's downloads, so the current adoption reading, set on the GLM-4 generation, undercounts where the family sits now and is flagged for review.
Openness
3 high confidence- weights
- open(MIT)
- data
- closed
- code
- open(inference)
- license
- MIT(OSI)
GLM-5.2, the current release, ships MIT weights, but the training data is closed and no training pipeline is published. Z.ai relicensed partway through the family: GLM-4 and GLM-4-9B carried the more restrictive GLM-4 License, requiring commercial-use registration and a "Built with GLM" attribution, before GLM-4.6 and later releases moved to plain MIT.
- https://api.github.com/repos/zai-org/GLM-5 recorded 2026-08-13
`private: false`, `archived: false`, license `Apache-2.0`, 6,943 stars, description "GLM-5: From Vibe Coding to Agentic Engineering". Inference and deployment code, published.
- https://huggingface.co/api/models/zai-org/GLM-5.2 recorded 2026-08-13
card license `mit`, `gated: false`, `private: false`, 2,662,328 downloads and 4,944 likes; no corpus declared on the card.
- https://huggingface.co/zai-org/GLM-5.2/blob/main/LICENSE recorded 2026-08-13
"MIT License / Copyright (c) 2026 Zhipu AI / Permission is hereby granted, free of charge ... without restriction" - the unmodified MIT text.
Adoption
4 high confidenceAdoption is measured as Hugging Face downloads summed across four declared checkpoints spanning GLM-4 through GLM-5.2. GLM-5.2, the current release, accounts for nearly all of that total; the older THUDM/glm-4-9b repository now redirects to zai-org.
- https://huggingface.co/api/models/THUDM/glm-4-9b recorded 2026-08-14
11,688 downloads in the trailing 30 days for THUDM/glm-4-9b (now served as zai-org/glm-4-9b)
- https://huggingface.co/api/models/zai-org/GLM-4.6 recorded 2026-08-14
28,016 downloads in the trailing 30 days for zai-org/GLM-4.6; 1,230 likes
- https://huggingface.co/api/models/zai-org/GLM-5.1 recorded 2026-08-14
72,174 downloads in the trailing 30 days for zai-org/GLM-5.1; 1,839 likes
- https://huggingface.co/api/models/zai-org/GLM-5.2 recorded 2026-08-14
2,662,328 downloads in the trailing 30 days for zai-org/GLM-5.2; 4,948 likes; gated false
- https://huggingface.co/zai-org/GLM-4-9B-Chat recorded 2026-06-04
GLM-4-9B-Chat model card: 121,169 downloads last month; the undeclared, generation-behind SKU the earlier reading came from
Capability
5 high confidenceGLM-5.3 is among the highest-scoring large open-weight models on Artificial Analysis's Intelligence Index, well ahead of GLM-5.2. Z.ai's own card puts it close to leading proprietary models on Terminal-Bench 2.1, though it trails them on DeepSWE.
- https://artificialanalysis.ai/models/glm-5-2 recorded 2026-09-29
Artificial Analysis page for the predecessor: "GLM-5.2 (max) scores 34 on the Artificial Analysis Intelligence Index", below GLM-5.3.
- https://artificialanalysis.ai/models/glm-5-3 recorded 2026-09-29
Artificial Analysis page for the current release: "GLM-5.3 (max) scores 45 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models" and "is amongst the leading models in intelligence".
- https://huggingface.co/zai-org/GLM-5.3/raw/main/README.md recorded 2026-09-29
GLM-5.3 model card benchmark table: vendor-reported "Terminal Bench 2.1 | 88.2" and "DeepSWE (v1.1) | 66.9" for GLM-5.3, against 81.0 and 46.2 for GLM-5.2.
- https://www.vals.ai/models/zai_glm-5.1-thinking recorded 2026-08-13
The page returns HTTP 404 - it establishes nothing and the reading does not depend on it.
Verified 2026-09-29, except some scores, still awaiting re-confirmation