Hy-SimulMT translates Chinese and English speech as audio arrives. Users can try it in the Hy Translate mobile app; development tools are available publicly.

Tencent releases Hy-SimulMT for real-time speech translation

Photo source: Tencent Hunyuan

Tencent's roughly three-second result measures StreamLAAL lag, not time to first speech. Self-hosted speech output and voice cloning require a configured TTS service.