GLM-5.3
Hugging Face (zai-org) Open weights
The catch: Text-only with 744B total / 40B active parameters, and the card gives no serve command, only links to SGLang and vLLM recipes.
| Access | Open weights |
|---|---|
| Free limits | Free to download and self-host; you pay only for your own compute. ~744 B total / 40 B active (MoE, FP8 weights; BF16 copy at zai-org/GLM-5.3-BF16), needs multi-GPU. Licence cap: Model-as-a-Service operators with over US$10 billion revenue in 12 months must pass Z.AI's security review before commercial use. |
| Modality | text, code |
| Credit card | Not required |
| Commercial use | Allowed |
| Trains on your data | – |
| Licence or terms | GLM-5.3 License (custom, MIT-style) |
| Context window | 1,048,576 tokens |
| Model id | zai-org/GLM-5.3 |
| Base URL | – |
| Last checked | 2 Oct 2026 |
How to use GLM-5.3
Download the weights and serve them yourself. Licence: GLM-5.3 License (custom, MIT-style).
Paste into Claude Code
I want to run the open-weight model "GLM-5.3" (zai-org/GLM-5.3) for my project. Please: 1. Check the model card and tell me the hardware it needs and the simplest way to serve it (vLLM, SGLang, Ollama or a hosted endpoint). 2. Give me a minimal working setup and a test request. 3. Tell me the licence terms for commercial use. 4. If a cheaper or smaller variant would do the job, mention it.
Before you ship on it
- Text-only with 744B total / 40B active parameters, and the card gives no serve command, only links to SGLang and vLLM recipes.
- GLM-5.3 License (LICENSE in the HF repo): MIT-style grant (use, modify, sell, deploy, fine-tune) with notice retention and compliance with applicable law. Clause 2: if the licensee or affiliates run a 'Model as a…
- Free to run means you pay for the GPUs, the serving stack and the on-call.
Questions
Is GLM-5.3 free?
Yes. Open weights offers it as open weights, with these limits: Self-host free · GLM-5.3 License (custom, MIT-style). No credit card is needed.
Can I use GLM-5.3 commercially?
Yes, under GLM-5.3 License (custom, MIT-style). Check the current terms before you ship.
How do I start with GLM-5.3?
Download the weights and serve them yourself. Licence: GLM-5.3 License (custom, MIT-style).
Source: huggingface.co/zai-org/GLM-5.3/blob/main/LICENSE, checked 2 Oct 2026.