📋 Model Description


library_name: transformers tags:
  • translation
language:
  • zh
  • en
  • fr
  • pt
  • es
  • ja
  • tr
  • ru
  • ar
  • ko
  • th
  • it
  • de
  • vi
  • ms
  • id
  • tl
  • hi
  • pl
  • cs
  • nl
  • km
  • my
  • fa
  • gu
  • ur
  • te
  • mr
  • he
  • bn
  • ta
  • uk
  • bo
  • kk
  • mn
  • ug





🤗 Hugging Face  |  
🕹️ Demo    
🤖 ModelScope  |  


🖥️ Official Website  |  
Github

Model Introduction

Hunyuan Translation Model Version 1.5 includes a 1.8B translation model, HY-MT1.5-1.8B, and a 7B translation model, HY-MT1.5-7B. Both models focus on supporting mutual translation across 33 languages and incorporating 5 ethnic and dialect variations. Among them, HY-MT1.5-7B is an upgraded version of our WMT25 championship model, optimized for explanatory translation and mixed-language scenarios, with newly added support for terminology intervention, contextual translation, and formatted translation. Despite having less than one-third the parameters of HY-MT1.5-7B, HY-MT1.5-1.8B delivers translation performance comparable to its larger counterpart, achieving both high speed and high quality. After quantization, the 1.8B model can be deployed on edge devices and support real-time translation scenarios, making it widely applicable.

Key Features and Advantages

  • HY-MT1.5-1.8B achieves the industry-leading performance among models of the same size, surpassing most commercial translation APIs.
  • HY-MT1.5-1.8B supports deployment on edge devices and real-time translation scenarios, offering broad applicability.
  • HY-MT1.5-7B, compared to its September open-source version, has been optimized for annotated and mixed-language scenarios.
  • Both models support terminology intervention, contextual translation, and formatted translation.

Related News

  • 2025.12.30, we have open-sourced HY-MT1.5-1.8B and HY-MT1.5-7B on Hugging Face.
  • 2025.9.1, we have open-sourced Hunyuan-MT-7B , Hunyuan-MT-Chimera-7B on Hugging Face.

Performance




You can refer to our technical report for more experimental results and analysis.

Technical Report

 

Model Links

| Model Name | Description | Download | | ----------- | ----------- |----------- | HY-MT1.5-1.8B | Hunyuan 1.8B translation model |🤗 Model| | HY-MT1.5-1.8B-FP8 | Hunyuan 1.8B translation model, fp8 quant | 🤗 Model| | HY-MT1.5-1.8B-GPTQ-Int4 | Hunyuan 1.8B translation model, int4 quant | 🤗 Model| | HY-MT1.5-7B | Hunyuan 7B translation model | 🤗 Model| | HY-MT1.5-7B-FP8 | Hunyuan 7B translation model, fp8 quant | 🤗 Model| | HY-MT1.5-7B-GPTQ-Int4 | Hunyuan 7B translation model, int4 quant | 🤗 Model|

Prompts

Prompt Template for ZH<=>XX Translation.


将以下文本翻译为{target_language},注意只需要输出翻译后的结果,不要额外解释:

{source_text}



Prompt Template for XX<=>XX Translation, excluding ZH<=>XX.


Translate the following segment into {target_language}, without additional explanation.

{source_text}



Prompt Template for terminology intervention.


参考下面的翻译:
{sourceterm} 翻译成 {targetterm}

将以下文本翻译为{target_language},注意只需要输出翻译后的结果,不要额外解释:
{source_text}



Prompt Template for contextual translation.


{context}
参考上面的信息,把下面的文本翻译成{target_language},注意不需要翻译上文,也不要额外解释:
{source_text}

Prompt Template for formatted translation.


将以下<source></source>之间的文本翻译为中文,注意只需要输出翻译后的结果,不要额外解释,原文中的<sn></sn>标签表示标签内文本包含格式信息,需要在译文中相应的位置尽量保留该标签。输出格式为:<target>str</target>

<source>{srctextwith_format}</source>



 

Use with llama.cpp

llama-cli -hf tencent/HY-MT1.5-7B-GGUF:Q8_0 -p "Translate the following segment into Chinese, without additional explanation.\n\nIt’s on the house." -n 4096 --temp 0.7 --top-k 20 --top-p 0.6 --repeat-penalty 1.05 --no-warmup

Use with ollama

echo 'FROM hf.co/tencent/HY-MT1.5-7B-GGUF:Q80\nTEMPLATE """{{ if .System }}<|startoftext|>{{ .System }}<|extra4|>{{ end }}{{ if .Prompt }}<|startoftext|>{{ .Prompt }}<|extra_0|>{{ end }}{{ .Response }}<|eos|>"""' > Modelfile
ollama create hy-mt1.5-7b -f Modelfile
ollama run hy-mt1.5-7b

We recommend using the following set of parameters for inference. Note that our model does not have the default system_prompt.

{
  "top_k": 20,
  "top_p": 0.6,
  "repetition_penalty": 1.05,
  "temperature": 0.7
}

 

Supported languages:




LanguagesAbbr.Chinese Names
Chinesezh中文
Englishen英语
Frenchfr法语
Portuguesept葡萄牙语
Spanishes西班牙语
Japaneseja日语
Turkishtr土耳其语
Russianru俄语
Arabicar阿拉伯语
Koreanko韩语
Thaith泰语
Italianit意大利语
Germande德语
Vietnamesevi越南语
Malayms马来语
Indonesianid印尼语
Filipinotl菲律宾语
Hindihi印地语
Traditional Chinesezh-Hant繁体中文
Polishpl波兰语
Czechcs捷克语
Dutchnl荷兰语
Khmerkm高棉语
Burmesemy缅甸语
Persianfa波斯语
Gujaratigu古吉拉特语
Urduur乌尔都语
Telugute泰卢固语
Marathimr马拉地语
Hebrewhe希伯来语
Bengalibn孟加拉语
Tamilta泰米尔语
Ukrainianuk乌克兰语
Tibetanbo藏语
Kazakhkk哈萨克语
Mongolianmn蒙古语
Uyghurug维吾尔语
Cantoneseyue粤语

📂 GGUF File List

📁 Filename 📦 Size ⚡ Download
HY-MT1.5-7B-Q4_K_M.gguf
Recommended LFS Q4
4.31 GB Download
HY-MT1.5-7B-Q6_K.gguf
LFS Q6
5.74 GB Download
HY-MT1.5-7B-Q8_0.gguf
LFS Q8
7.43 GB Download