Why is the model size of Hy-MT1.5-1.8B-1.25bit only 440MB?

Tencent Hy-MT1.5-1.8B-1.25bit open source: 440MB mobile phone offline translation model analysis

1. Abstract Hy-MT1.5-1.8B-1.25bit is a low-bit offline translation model based on HY-MT1.5-1.8B launched by Tencent's hybrid team, with a parameter si...