Tencent open-sourced its Hy-MT2 multilingual translation model family with three sizes supporting 33 languages and five dialects. The lightweight 1.8B version uses 1.25-bit quantization for efficient offline mobile use. The flagship 30B model employs a mixture-of-experts architecture for professional scenarios. Performance nears or matches Gemini 3.1 Pro in general and domain-specific tests. A companion mini-program is live, with mobile apps and full model code released on open-source platforms.