Tencent open-sources Hy-SimulMT: 30B/A3B realtime translation with 3s lag

AdinaYakup · x · 2026-10-26

Tencent released Hy-SimulMT, a realtime simultaneous translation model: 30B total / A3B active params, Apache 2.0, Chinese<>English, 3-second lag (lowest in its RealSI eval), with GGUF and fp8 builds for local deployment. The benchmark chart places it top-left (high GEMBA quality, low StreamLAAL latency), ahead of Qwen3.8-LiveTranslate, GPT-Realtime-Translate, Seed-LiveInterpret 2.0, and Gemini3.5-LiveTranslate.

Related event: Tencent Hunyuan Open-Sources Hy-SimulMT, a ~3s-Latency Real-Time Speech Translator(7 posts)→

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