Kitten-TTS 2: 1.58-bit Open-Source TTS with CPU Inference
October 21, 2026
Kitten-TTS 2 is a 1.7B parameter ternary TTS model using 1.58-bit weights (-1, 0, +1). It enables real-time, zero-shot voice cloning and multilingual expressive control on CPUs without requiring a GPU.
HOW THIS AFFECTS YOU
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builderYou can deploy high-quality, low-latency voice cloning locally on consumer hardware.
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designerYou gain access to expressive, emotion-controlled speech for real-time applications.