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NineNineSix·Nov 28, 2025·v1.0·open source

KaniTTS2-en

KaniTTS2-en is an open-source text-to-speech model developed by NineNineSix, optimized for real-time conversational AI applications. It utilizes a two-stage pipeline combining a large language model with an efficient audio codec to deliver high-quality, low-latency speech synthesis.

AudioTTS
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overview

KaniTTS2-en is an open-source text-to-speech model developed by NineNineSix, optimized for real-time conversational AI applications. It utilizes a two-stage pipeline combining a large language model with an efficient audio codec to deliver high-quality, low-latency speech synthesis.

key features
  • 01Two-stage pipeline combining LLM and FSQ audio codec
  • 02Model size of 400 million parameters
  • 03Supports English language with a sample rate of 22kHz