# Zhipu AI Releases MIT-Licensed GLM-5.2 MoE Model

> The new bilingual model from the Chinese AI firm uses a Mixture of Experts architecture and sparse attention under a fully permissive license.

Published by The Open Weights on Jun 17, 2026. Canonical: https://theopenweights.com/news/glm-5-2-bs32

## Key facts

- Company: Zhipu AI
- Model: GLM-5.3
- Version: 5.2
- Category: Text / LLM
- Modalities: Text / LLM, Reasoning
- License: MIT (Open weights, commercial use allowed)
- Context window: 1.0M tokens
- Architecture: GlmMoeDsaForCausalLM
- Precision: BF16
- Weights size: 1506.7 GB
- Significance: major
- Published: 2026-06-17
- Last verified: 2026-08-16
- Hugging Face: https://huggingface.co/zai-org/GLM-5.2
- Canonical URL: https://theopenweights.com/news/glm-5-2-bs32

Zhipu AI, one of China’s leading AI labs, has released GLM-5.2, a new open-source bilingual language model. The model continues the company's General Language Model (GLM) series and is designed for proficiency in both Chinese and English.

The key architectural feature of GLM-5.2 is its use of a Mixture of Experts (MoE) design. This approach allows the model to activate only a subset of its parameters for any given input, leading to more efficient computation during inference. The model also incorporates sparse attention, another technique aimed at optimizing performance and resource usage.

Perhaps most notably, Zhipu AI has released GLM-5.2 under the MIT license. This is a fully permissive open-source license that allows for broad commercial use, modification, and distribution without significant restrictions. The choice of license marks a significant contribution to the open-source community, removing barriers to adoption for a wide range of applications.

The model is now available for download and experimentation. Developers and researchers can access the weights and further technical details from the official [Hugging Face repository](https://huggingface.co/zai-org/GLM-5.2).

## Get the model

- [Hugging Face](https://huggingface.co/zai-org/GLM-5.2)
- [Announcement](https://huggingface.co/blog/zai-org/glm-52-blog)
- [Announcement](https://simonwillison.net/2026/Jun/17/glm-52/#atom-everything)

## Sources

- [zai-org/GLM-5.2](https://huggingface.co/zai-org/GLM-5.2) — Hugging Face, Jun 16, 2026
- [GLM-5.2: Built for Long-Horizon Tasks](https://huggingface.co/blog/zai-org/glm-52-blog) — Announcement, Jun 17, 2026
- [GLM-5.2 is probably the most powerful text-only open weights LLM](https://simonwillison.net/2026/Jun/17/glm-52/#atom-everything) — Announcement, Jun 17, 2026

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Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "Zhipu AI Releases MIT-Licensed GLM-5.2 MoE Model", The Open Weights, Jun 17, 2026, https://theopenweights.com/news/glm-5-2-bs32