Hy3, GGUF

Hy3 is a Mixture-of-Experts (MoE) language model designed for advanced reasoning, coding, agentic workflows, and long-context processing. It is optimized for reliable tool use, complex multi-turn interactions, and high-throughput production inference.

This repository holds Vultr's GGUF quantizations of it. They are hybrid quantizations: rather than applying one precision to the whole network, each layer's precision is chosen from a measured importance score, so the bits go where they change the output most.

Model Overview

Attribute Value
Base model tencent/Hy3
Architecture hy_v3, Mixture-of-Experts
Parameters 295B total
Active parameters 21B
Layers 80
Hidden size 4,096
Attention heads 64
Experts 192 routed, top-8 routing
Context length up to 256K
Vocabulary 120,832
License Apache 2.0

Quantizations

File Type Size KLD vs bf16
Hy3-Q5_K_M-*.gguf (2 parts) Q5_K_M 230.25 GB 0.0187
Hy3-Q4_K_M-*.gguf (2 parts) Q4_K_M 196.34 GB 0.0315
Hy3-IQ3_M.gguf IQ3_M 141.93 GB 0.1307
Hy3-IQ3_S.gguf IQ3_S 139.94 GB 0.1596

KL divergence measures how far a quantized model's next-token probabilities drift from those of the original bf16 model, averaged over every token of the evaluation text. The lower the value, the closer the quantized model is to the original; zero would mean identical output.

Evaluation

Every variant in this repository was evaluated against the original bf16 model for perplexity, KL divergence, top-token agreement, HellaSwag and WinoGrande, under identical conditions. The full results are maintained on the model's page in the Vultr Model Library:

https://docs.vultr.com/models/tencent-hy3/hy3?tab=quantized

That page is the reference for these files. The summary above is an excerpt from it.

Run

llama-server -hf vultr/Hy3-GGUF:Q4_K_M

The model's chat template is embedded in every file, so no extra prompt formatting is needed.

License

These files are derived from tencent/Hy3 and are distributed under the same license, Apache 2.0. The model is the work of Tencent; Vultr produced the quantizations.

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