HY-MT1.5-1.8B Lightweight Translation Model  Open-Source Game-Changer
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HY-MT1.5-1.8B Lightweight Translation Model  Open-Source Game-Changer
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Tencent raised the bar for lightweight translation!
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Tencent raised the bar for lightweight translation!
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Supports bidirectional translation across 36 languages total—33 mainstream languages + 5 ethnic/minority dialects
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Supports bidirectional translation across 36 languages total—33 mainstream languages + 5 ethnic/minority dialects
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With only 1.8B parameters (less than 1/3 the size of HY-MT1.5-7B), it delivers performance on par with the 7B counterpart and outperforms most commercial translation APIs.
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With only 1.8B parameters (less than 1/3 the size of HY-MT1.5-7B), it delivers performance on par with the 7B counterpart and outperforms most commercial translation APIs.
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✅ Quantized versions (FP8/GPTQ-Int4) available for edge device deployment, perfect for real-time translation
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✅ Quantized versions (FP8/GPTQ-Int4) available for edge device deployment, perfect for real-time translation
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✅ Full support for terminology intervention, context-aware translation, and formatted output
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✅ Full support for terminology intervention, context-aware translation, and formatted output
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✅ Ready-to-use prompt templates + seamless integration with Hugging Face Transformers
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✅ Ready-to-use prompt templates + seamless integration with Hugging Face Transformers
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✅ Recommended transformers ≥ 4.56.0 (FP8 model requires compressed-tensors 0.11.0)
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✅ Recommended transformers ≥ 4.56.0 (FP8 model requires compressed-tensors 0.11.0)
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10+ Hugging Face Spaces already integrated this model!
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10+ Hugging Face Spaces already integrated this model!
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👉 Model Repo: 
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👉 Model Repo: 
https://huggingface.co/tencent/HY-MT1.5-1.8B
tencent/HY-MT1.5-1.8B
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https://huggingface.co/tencent/HY-MT1.5-1.8B
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👉 Technical Report: 
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👉 Technical Report: 
https://arxiv.org/abs/2512.24092
https://arxiv.org/abs/2512.24092
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HY-MT1.5-1.8B Lightweight Translation Model  Open-Source Game-Changer

Tencent raised the bar for lightweight translation!

Supports bidirectional translation across 36 languages total—33 mainstream languages + 5 ethnic/minority dialects

With only 1.8B parameters (less than 1/3 the size of HY-MT1.5-7B), it delivers performance on par with the 7B counterpart and outperforms most commercial translation APIs.

✅ Quantized versions (FP8/GPTQ-Int4) available for edge device deployment, perfect for real-time translation
✅ Full support for terminology intervention, context-aware translation, and formatted output
✅ Ready-to-use prompt templates + seamless integration with Hugging Face Transformers
✅ Recommended transformers ≥ 4.56.0 (FP8 model requires compressed-tensors 0.11.0)

10+ Hugging Face Spaces already integrated this model!

👉 Model Repo: https://huggingface.co/tencent/HY-MT1.5-1.8B
👉 Technical Report: https://arxiv.org/abs/2512.24092
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