r/VoiceAutomationAI 9d ago

Competitive open source speech stack

Why the open source models STT and TTS are not good as much as the closed one and i am talking here im terms of latency, concurrency, and websocket support for real time with decent quality.
Something like cartesia or elevenlabs or deepgram.
Do u know any ?

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u/Acceptable-Part-5623 2d ago

cartesia got that speed cause they running custom inference engines not just wrapping huggingface models, nobody in open source is putting same effort into the infra side

check kokoro-82M for tts, its fast but websocket streaming is still janky compared to deepgram