Tencent's open-source Hy-MT 1.5-1.8B-1.25bit mobile offline translation model.

Tencent's Hunyuan open-source mobile offline translation model, Hy-MT1.5-1.8B-1.25bit, compresses a large translation model supporting 33 languages and 1056 translation directions to a mere 440MB, allowing it to run locally on a mobile device without an internet connection. Built on Hy-MT1.5 with 1.8B parameters, the model employs Sherry sparse quantization technology (accepted at ACL 2026), achieving translation quality surpassing mainstream systems like Google Translate.