model-files-v1.1

Both Kokoro models in three precisions, exported with scripts/export.py.

file	size	notes
kokoro-v1.0.onnx	326 MB	English, full precision
kokoro-v1.0.fp16.onnx	164 MB	spectral correlation 0.999 against fp32
kokoro-v1.0.int8.onnx	114 MB	spectral correlation 0.916 against fp32
kokoro-v1.1-zh.onnx	326 MB	Chinese and English, full precision
kokoro-v1.1-zh.fp16.onnx	164 MB	spectral correlation 0.994 against fp32
kokoro-v1.1-zh.int8.onnx	114 MB	spectral correlation 0.874 against fp32
voices-v1.0.bin	28 MB	54 voices for the v1.0 models
voices-v1.1-zh.bin	53 MB	103 voices for the v1.1-zh models

Every model in this release carries three improvements over the previous exports:

• a duration output, which kokoro-onnx 0.6.0 uses for create_timed() timestamps and for create(continuous=True) sliding window synthesis
• a float speed input. The previously published kokoro-v1.1-zh.onnx declared it as int32, so fractional speeds were truncated and speed=0.9 crashed the model (#155)
• config.json embedded in the graph metadata, so the vocabulary travels with the model and no vocab_config argument is needed

All variants keep float inputs and outputs and are called identically.

Note: kokoro-v1.1-zh.onnx replaces the file published in this release on Mar 1 2025. Same weights, fixed graph contract.

model-files-v1.0

kokoro-v1.0.onnx: (310MB): optimized f32 version from taylorchu/kokoro-onnx
kokoro-v1.0.fp16.onnx: (169MB): optimized f16 version from taylorchu/kokoro-onnx
kokoro-v1.0.int8.onnx: (88MB): optimized int8 version from taylorchu/kokoro-onnx
voices-v1.0.bin: npz (numpy) key value pairs of style vectors contains the following voices (26):

See list of voice names and languages in https://huggingface.co/hexgrad/Kokoro-82M/blob/main/VOICES.md

model-files

kokoro-v0_19.onnx: (310MB): optimized f32 version from taylorchu/kokoro-onnx
kokoro-v0_19.fp16.onnx: (169MB): optimized f16 version from taylorchu/kokoro-onnx
kokoro-v0_19.int8.onnx: (88MB): optimized int8 version from taylorchu/kokoro-onnx
voices.bin: npz (numpy) key value pairs of style vectors contains the following voices (26):

af_alloy, af_aoede, af_bella, af_jessica, af_kore, af_nicole, af_nova, af_river, af_sarah, af_sky, am_adam, am_echo, am_eric, am_fenrir, am_liam, am_michael, am_onyx, am_puck, bf_alice, bf_emma, bf_isabella, bf_lily, bm_daniel, bm_fable, bm_george, bm_lewis