Revolutionize Speech Synthesis with CosyVoice
Introducing CosyVoice, a state-of-the-art multilingual voice generation model for high-fidelity text-to-speech synthesis. Experience seamless voice cloning and ultra-fast streaming, now supporting a variety of languages.

What is CosyVoice?
CosyVoice empowers users with top-notch multilingual text-to-speech solutions, featuring rapid and natural voice synthesis.
- Multilingual SynthesisSupports multiple languages, including Chinese and English, and various dialects for extensive coverage.
- Fast PerformanceSwift and responsive voice synthesis with a latency of just 150ms, perfect for real-time usage.
- Open SourceOpen-source availability under Apache-2.0, allowing for flexible adoption and expansion.
- InnovationsCosyVoice presents groundbreaking improvements in the realm of text-to-speech synthesis.
Why Choose CosyVoice?
Experience the revolutionary advancements in speech synthesis that come with CosyVoice. Unlock the power of multilingual capabilities and real-time applications for your digital solutions.



CosyVoice Capabilities
Discover the innovative features that make CosyVoice a leader in text-to-speech technology, perfect for diverse applications.
Multilingual Capability
CosyVoice provides cutting-edge multilingual support, handling multiple languages and dialects with ease.
Low Latency Performance
With extremely fast synthesis, CosyVoice allows applications to function with minimal delay in speech generation.
Zero-shot Voice Cloning
CosyVoice employs zero-shot voice synthesis, delivering high-precision speech output effortlessly.
CosyVoice in Numbers
CosyVoice's unmatched performance in speech synthesis is backed by rigorous testing and constant advancements.
Covers
5+
global languages supported
Ultra-low Latency
150ms
first packet latency in milliseconds
High MOS Ratings
5.5
mean opinion score of speech naturalness
What People Are Saying
Hear from those who have experienced the innovation of CosyVoice and how it transforms text into exquisite speech.
Alex
Tech Innovator
CosyVoice has revolutionized the way we generate speech for our applications. The speed and naturalness are unparalleled, truly setting a new benchmark in TTS technology.
Jamie
App Developer
Using CosyVoice, we have enhanced the user experience drastically with multilinguistic support and voice cloning. Its functionality is beyond impressive.
Taylor
Software Engineer
The open-source nature and flexibility of CosyVoice make it ideal for rapid development and deployment in various projects.
Chris
AI Enthusiast
The ability to use CosyVoice for real-time applications makes our virtual assistant truly standout in voice quality and responsiveness.
Morgan
System Architect
CosyVoice's performance in multilingual synthesis has been a game-changer for us, managing seamless integration with our systems.
Jordan
Digital Media Expert
Our experience with CosyVoice has been nothing but exceptional. It's truly a beacon in the text-to-speech industry.
Frequently Asked Questions
Learn more about how CosyVoice can transform your text-to-speech needs, and find answers to common questions about its capabilities and usage.
What languages does CosyVoice support?
CosyVoice supports Chinese, English, Japanese, Korean, and several dialects such as Cantonese and Sichuanese.
How does CosyVoice generate realistic voices?
Using advanced supervised semantic tokens that allow for nuanced and natural speech generation.
Can it clone voices in real-time?
Yes, CosyVoice allows for real-time voice cloning with low latency, perfect for interactive applications.
How do I install and use CosyVoice?
You can download it via GitHub, set it up using Conda, and deploy models with Docker for easy integration into applications.
What interfaces are supported?
You can use standard protocols for setup, and it supports both command-line and web interfaces for flexibility.
Is CosyVoice customizable?
Yes, CosyVoice's open-source nature under the Apache-2.0 license allows for tailored modifications.
What improvements does CosyVoice 2.0 bring?
CosyVoice 2.0 offers faster synthesis times and improved pronunciation accuracy, making it stay competitive with commercial models.
What applications is CosyVoice suitable for?
Designed to handle a variety of voice synthesis tasks including interactive, multilingual, and expressive voice generation.
Who develops and maintains CosyVoice?
CosyVoice is continually updated by FunAudioLLM, possibly in collaboration with Alibaba, ensuring cutting-edge advancements.
How is deployment handled?
Use Docker and Conda environments to facilitate seamless deployment over various servers and systems.
Join the Future of Speech Synthesis
Bring the voice of the future to your applications with CosyVoice. Install now and witness unmatched quality and efficiency in your projects.