Gepard : 0.6B streaming TTS built for real-time dialogue - 20× realtime factor, ~50ms time-to-first-audio, vLLM-native, Apache 2.0

We just open-sourced Gepard 1.0, a TTS model built for real-time conversation. It’s streaming-first: audio starts the moment text arrives, generated frame by frame instead of waiting for a full sentence. - ~555M params: Qwen3.5 0.8B backbone (14 layers) + Nemo NanoCodec (FSQ, 22.05kHz) - ~20 x RTF,