Tencent Hy3
Hugging Face (tencent) Open weights
The catch: Text-only, and serving the 295B model takes 8 large-memory GPUs; the card's vLLM path also asks you to build vLLM from source.
| Access | Open weights |
|---|---|
| Free limits | Free to download and self-host; you pay only for your own compute. ~295 B total / 21 B active (MoE, plus 3.8 B MTP layer), needs multi-GPU: Tencent recommends 8 H20-3e or larger-memory GPUs. No territory exclusions or user caps in the licence. |
| Modality | text, code |
| Credit card | Not required |
| Commercial use | Allowed |
| Trains on your data | – |
| Licence or terms | Apache-2.0 |
| Context window | 262,144 tokens |
| Model id | tencent/Hy3 |
| Base URL | – |
| Last checked | 2 Oct 2026 |
How to use Tencent Hy3
Download the weights and serve them yourself; the quickstart below shows one way. Licence: Apache-2.0.
Quickstart
VLLM_FLASHINFER_ALLREDUCE_BACKEND=trtllm vllm serve tencent/Hy3 --tensor-parallel-size 8 --speculative-config.method mtp --speculative-config.num_speculative_tokens 2 --tool-call-parser hy_v3 --reasoning-parser hy_v3 --enable-auto-tool-choice --port 8000 --served-model-name hy3
Paste into Claude Code
I want to run the open-weight model "Tencent Hy3" (tencent/Hy3) 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, and serving the 295B model takes 8 large-memory GPUs; the card's vLLM path also asks you to build vLLM from source.
- LICENSE in the HF repo: 'Tencent Hy3 is licensed under the Apache-2.0' followed by the unmodified Apache 2.0 text; no EU/UK/South Korea territory exclusion, no MAU cap and no acceptable-use appendix. Standard Apache…
- Free to run means you pay for the GPUs, the serving stack and the on-call.
Questions
Is Tencent Hy3 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 Hy3 commercially?
Yes, under Apache-2.0. Check the current terms before you ship.
How do I start with Tencent Hy3?
Download the weights and serve them yourself; the quickstart below shows one way. Licence: Apache-2.0.
Source: huggingface.co/tencent/Hy3, checked 2 Oct 2026.