zero-shot TTS / voice cloning
OpenVoice is a zero-shot text-to-speech model for instant voice cloning with flexible style control, supporting multiple languages.
Same problem, same approach. Swapping one for another is a config change, not a rewrite.
choose for a newer, actively maintained TTS with expressive control and Apache-2.0 license.
Qwen3-TTS is an open-source series of TTS models developed by the Qwen team at Alibaba Cloud, supporting stable, expressive, and streaming speech generation, free-form voice design, and vivid voice cloning.
choose when you need voice cloning for 600+ languages, far beyond OpenVoice's six.
High-Quality Voice Cloning TTS for 600+ Languages
choose for a leading open-weight model with high expressiveness, though slightly older maintenance.
Zonos-v0.1 is a leading open-weight text-to-speech model trained on more than 200k hours of varied multilingual speech, delivering expressiveness and quality on par with—or even surpassing—top TTS providers.
choose when you need extremely fast cloning (150x realtime) for low-latency or batch use.
A high-quality rapid TTS voice cloning model that reaches speeds of 150x realtime.
choose for a family of high-fidelity, expressive models with Apache-2.0 and active development.
An open-source model family for long-form speech, dialogue synthesis, voice design, sound effects, and real-time streaming TTS
choose for a cross-lingual zero-shot engine from a major company with recent updates.
Confucius4-TTS: a Multilingual and Cross-Lingual Zero-Shot TTS Engine
choose for the latest tokenizer-free approach with true-to-life cloning and Apache-2.0.
VoxCPM2: Tokenizer-Free TTS for Multilingual Speech Generation, Creative Voice Design, and True-to-Life Cloning
choose when you need a full-stack solution including training and deployment, not just inference.
Multi-lingual large voice generation model, providing inference, training and deployment full-stack ability.
choose for a simple inference codebase for a competitive TTS model.
Spark-TTS Inference Code
choose when you also need zero-shot speech editing in addition to TTS.
Zero-Shot Speech Editing and Text-to-Speech in the Wild
choose when you want a model that also edits emotion and style while providing zero-shot TTS.
A powerful 3B-parameter, LLM-based Reinforcement Learning audio edit model excels at editing emotion, speaking style, and paralinguistics, and features robust zero-shot text-to-speech
choose for industrial-level efficiency and controllability in zero-shot TTS.
An Industrial-Level Controllable and Efficient Zero-Shot Text-To-Speech System
choose for an LLM-empowered TTS with recent updates and MPL-2.0 license.
An Open-Sourced LLM-empowered Foundation TTS System
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
choose for a TTS built by inverting Whisper, a different architecture with MIT license.
An Open Source text-to-speech system built by inverting Whisper.
choose when you have a few minutes of voice data and can fine-tune for higher quality on a specific voice.
1 min voice data can also be used to train a good TTS model! (few shot voice cloning)
choose when you need a controllable TTS for 7000+ languages and are willing to train per speaker.
Controllable and fast Text-to-Speech for over 7000 languages!
choose when you need a full speech AI framework with custom training and deployment options.
A scalable generative AI framework built for researchers and developers working on Large Language Models, Multimodal, and Speech AI (Automatic Speech Recognition and Text-to-Speech)
An earlier or more limited way to do the job. Still the right call when you need something small, proven, or CPU-only.
choose for human-like expressive TTS when you accept an unmaintained codebase (no push for over 2 years).
Foundational model for human-like, expressive TTS
choose for a VALL-E-X approach when you accept an archived, unmaintained implementation.
An open source implementation of Microsoft's VALL-E X zero-shot TTS model. Demo is available in https://plachtaa.github.io/vallex/
choose when you specifically need Vietnamese TTS with on-device CPU inference and instant cloning.
Vietnamese TTS with instant voice cloning • On-device • Real-time CPU inference • 48kHz audio quality • Chuyển văn bản thành giọng nói tiếng Việt • Text to speech tiếng Việt • TTS tiếng Việt
These projects were analysed and named OpenVoice among their alternatives. The relationship is not symmetric — how OpenVoice rates them is a separate judgement, made when OpenVoice is analysed in its own right.
calls OpenVoice “Choose it for a lightweight, fast instant voice cloning model.”
1 min voice data can also be used to train a good TTS model! (few shot voice cloning)
calls OpenVoice “choose for MIT-licensed instant voice cloning with cross-lingual support.”
An Industrial-Level Controllable and Efficient Zero-Shot Text-To-Speech System
calls OpenVoice “Choose when you need instant voice-color cloning with cross-lingual support and a lightweight MIT-licensed model.”
Multi-lingual large voice generation model, providing inference, training and deployment full-stack ability.
calls OpenVoice “Choose when you want lightweight instant voice cloning with tone color transfer under MIT.”
Qwen3-TTS is an open-source series of TTS models developed by the Qwen team at Alibaba Cloud, supporting stable, expressive, and streaming speech generation, free-form voice design, and vivid voice cloning.
calls OpenVoice “Different voice-cloning approach; choose for a simpler, lighter cloning pipeline.”
SoTA open-source TTS
calls OpenVoice “For instant voice cloning on top of TTS, if your primary need is cloning rather than multilingual synthesis.”
Lightning-Fast, On-Device, Multilingual TTS — running natively via ONNX.
calls OpenVoice “Choose when you need local voice cloning and style transfer with fast inference; requires PyTorch and model weights.”
Use Microsoft Edge's online text-to-speech service from Python WITHOUT needing Microsoft Edge or Windows or an API key
calls OpenVoice “choose for instant voice cloning with granular control over tone and emotion.”
Spark-TTS Inference Code
calls OpenVoice “Use for instant tone-color cloning that pairs with another TTS, not a full TTS engine.”
High-Quality Voice Cloning TTS for 600+ Languages
calls OpenVoice “choose for lightweight instant voice cloning with style control, if you don't need speech editing.”
Zero-Shot Speech Editing and Text-to-Speech in the Wild
calls OpenVoice “choose for instant cloning without emotion prompts; different API.”
EmotiVoice 😊: a Multi-Voice and Prompt-Controlled TTS Engine
calls OpenVoice “Focuses on instant voice cloning rather than a full multi-speaker library; choose it when cloning a specific voice is the priority.”
High-quality multi-lingual text-to-speech library by MyShell.ai. Support English, Spanish, French, Chinese, Japanese and Korean.
calls OpenVoice “choose over Zonos when your main need is fast timbre cloning in many languages via a voice-conversion pipeline rather than a single-model emotional TTS.”
Zonos-v0.1 is a leading open-weight text-to-speech model trained on more than 200k hours of varied multilingual speech, delivering expressiveness and quality on par with—or even surpassing—top TTS providers.
calls OpenVoice “choose it when you need versatile voice cloning and fine-grained tone control in Python.”
eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.
calls OpenVoice “Choose when you need cross-platform instant voice cloning without MLX.”
A text-to-speech (TTS), speech-to-text (STT) and speech-to-speech (STS) library built on Apple's MLX framework, providing efficient speech analysis on Apple Silicon.
calls OpenVoice “Instant voice cloning, but last pushed over 18 months ago, so only for legacy experiments.”
A powerful 3B-parameter, LLM-based Reinforcement Learning audio edit model excels at editing emotion, speaking style, and paralinguistics, and features robust zero-shot text-to-speech