Tencent Hy4 preview
Hugging Face (open weights) Open weights
The catch: Labelled a preview, text-only, and 770B parameters needs a multi-GPU node.
| Access | Open weights |
|---|---|
| Free limits | Free to download and self-host; you pay only for your own compute. 770B total / 49B active (MoE), 1M-token context; needs a multi-GPU node. Released 27 Aug 2026. |
| Modality | text, code |
| Credit card | Not required |
| Commercial use | Allowed |
| Trains on your data | – |
| Licence or terms | Apache-2.0 |
| Context window | 1,048,576 tokens |
| Model id | tencent/Hy4-preview |
| Base URL | – |
| Last checked | 8 Oct 2026 |
How to use Tencent Hy4 preview
Download the weights and serve them yourself; the quickstart below shows one way. Licence: Apache-2.0.
Quickstart
vllm serve tencent/Hy4-preview # then: curl http://localhost:8000/v1/chat/completions -H "Content-Type: application/json" -d '{"model":"tencent/Hy4-preview","messages":[{"role":"user","content":"Hello"}]}'Paste into Claude Code
I want to run the open-weight model "Tencent Hy4 preview" (tencent/Hy4-preview) 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
- Labelled a preview, text-only, and 770B parameters needs a multi-GPU node.
- Apache-2.0 (licence tag and LICENSE on the HF repo): use, modify, distribute and sell, including commercially; keep the licence and notices when you redistribute.
- Free to run means you pay for the GPUs, the serving stack and the on-call.
Questions
Is Tencent Hy4 preview free?
Yes. Open weights offers it as open weights, with these limits: Self-host free · Apache-2.0. No credit card is needed.
Can I use Tencent Hy4 preview commercially?
Yes, under Apache-2.0. Check the current terms before you ship.
How do I start with Tencent Hy4 preview?
Download the weights and serve them yourself; the quickstart below shows one way. Licence: Apache-2.0.
Source: huggingface.co/tencent/Hy4-preview, checked 8 Oct 2026.