CosyVoice

C
C tier on Text-to-Speech SoftwareScore 6.7 · #39 of 216
Android app
Not listed
Free plan
Yes
Runs on
api, Linux, self-hosted
github.com
The CosyVoice homepage

Summary

CosyVoice is a multilingual text-to-speech system for inference, training, and deployment. Its Fun-CosyVoice 3.0 version is designed for zero-shot multilingual speech synthesis across nine languages and more than 18 Chinese dialects or accents, with multilingual and cross-lingual voice cloning. Users can guide language, dialect, emotion, speed, and volume, and adjust pronunciation with Chinese Pinyin or English CMU phonemes. It handles numbers, special symbols, and varied text formats without a traditional frontend module. Text-in, audio-out streaming has stated latency as low as 150 ms. The repository documents Conda installation with Python 3.10, pretrained model downloads, and Docker deployment using gRPC or FastAPI, as well as NVIDIA Triton and TensorRT-LLM acceleration. It is Apache License 2.0 software with self-managed installation and deployment; no paid plans are listed. The maintainers direct users to GitHub Issues and an official Dingding chat group. The repository says its content is for academic purposes and to demonstrate technical capabilities.

Who it is for

CosyVoice may suit developers and researchers seeking a self-managed multilingual speech system with voice cloning and deployment options. The repository describes its content as intended for academic purposes and technical demonstration.

What is good

  • Supports nine languages and over 18 Chinese dialects or accents.
  • Includes multilingual and cross-lingual zero-shot voice cloning.
  • Offers text-in, audio-out streaming.
  • Apache License 2.0; no paid plans are listed.

What to know first

  • Documented installation uses Python 3.10.
  • Optional text-normalization wheel is specified for Linux x86_64.
  • Repository describes content as for academic purposes and demonstration.

Verdict

CosyVoice offers broad speech controls and deployment choices for a self-managed setup. Review the documented runtime and intended-use notes before adopting it.

CosyVoice plans and pricing

All plans
Open-source software Free The repository provides downloadable source code and models; no paid plans are listed. Apache-2.0 licensed repository · self-managed installation and deployment github.com · 3 Oct 2026

Compared on text-to-speech software

Free plan
Yesgithub.com
Commercial use
Yesgithub.com
Voice cloning
Yesgithub.com
API access
Yesgithub.com
Export formats
WAVgithub.com
Platforms
Linux, API, self_hostedgithub.com

Facts

Purpose
CosyVoice is a multilingual text-to-speech system that provides inference, training, and deployment capabilities.github.com · 3 Oct 2026
Zero-shot synthesis
Fun-CosyVoice 3.0 is designed for zero-shot multilingual speech synthesis.github.com · 3 Oct 2026
Languages and dialects
Version 3.0 covers nine languages and more than 18 Chinese dialects or accents, with multilingual and cross-lingual zero-shot voice cloning.github.com · 3 Oct 2026
Pronunciation control
The system supports pronunciation inpainting with Chinese Pinyin and English CMU phonemes.github.com · 3 Oct 2026
Text normalization
It supports reading numbers, special symbols, and varied text formats without a traditional frontend module.github.com · 3 Oct 2026
Streaming
It supports text-in and audio-out streaming, with latency stated as low as 150 ms.github.com · 3 Oct 2026
Voice instructions
Users can provide instructions for language, dialect, emotion, speed, and volume.github.com · 3 Oct 2026
Installation
The repository documents installation with Conda and Python 3.10, and offers pretrained model downloads through ModelScope or Hugging Face.github.com · 3 Oct 2026
Deployment options
The repository documents Docker deployment with gRPC or FastAPI, as well as NVIDIA Triton and TensorRT-LLM acceleration.github.com · 3 Oct 2026
API interfaces
The deployment instructions include FastAPI and gRPC servers and clients.github.com · 3 Oct 2026
Runtime requirements
The documented installation uses Python 3.10; the optional ttsfrd normalization wheel is specified for Linux x86_64.github.com · 3 Oct 2026
vLLM compatibility
The repository says CosyVoice 2 and 3 support vLLM 0.11.x or newer and vLLM 0.9.0, while versions between those releases are untested.github.com · 3 Oct 2026
License
The repository is licensed under Apache License 2.0.github.com · 3 Oct 2026
Support
The maintainers direct users to GitHub Issues and an official Dingding chat group for discussion.github.com · 3 Oct 2026
Intended use
The repository says its content is for academic purposes and to demonstrate technical capabilities.github.com · 3 Oct 2026

Best CosyVoice alternatives

See all 20

Where it ranks on Everything Xiaomi

Is CosyVoice yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Sources