Zero-shot voice cloning
Clone voices with only a few seconds of reference audio.
Advanced GPU Dedicated Server - RTX 3060 Ti
Basic GPU Dedicated Server - RTX 5060
Professional GPU VPS - A4000
Advanced GPU Dedicated Server - A5000
Enterprise GPU Dedicated Server - RTX 4090
Advanced GPU VPS - RTX 5090
Enterprise GPU Dedicated Server - RTX 5090
Enterprise GPU Dedicated Server - RTX PRO 6000
Chatterbox TTS Server web interface enables users to:
config.yaml.POST /save_settings — Saves server configuration (e.g., host, port, paths).POST /upload_reference — Uploads a reference audio file for voice cloning.POST /upload_predefined_voice — Uploads a new predefined voice file.POST /tts — Generates speech from text with customizable parameters (voice, temperature, speed, etc.).POST /v1/audio/speech — OpenAI-compatible endpoint for generating speech via standard OpenAI API format.| Use-Case Category | Description |
|---|---|
| AI Assistants & Chatbots | Give virtual assistants or chatbots expressive, custom voices via zero-shot cloning and emotion/style control. |
| Audiobooks, Podcasts & Narration | Clone a voice (or use custom voice) to narrate full-length content in multiple languages with consistent style. |
| Gaming & Interactive Media | Generate character voices, NPC dialogue or multilingual storytelling with emotion/intensity variation. |
| Accessibility & Localization | Provide high-quality TTS for screen-readers, assistive apps or multilingual users while maintaining voice persona. |
| Brand Voice & Business Apps | Clone branded voices for IVR, onboarding, e-learning, training videos — ensure consistent voice output across platforms/languages. |
| Feature | Coqui TTS | Chatterbox TTS |
|---|---|---|
| Origin & licensing | Coqui TTS is a toolkit originally developed (forked) from the Mozilla/Coqui TTS project. It supports a wide range of models and languages. The project’s company (Coqui AI) announced shutdown of hosted services in late 2023/early 2024, though the open-source code remains. |
Chatterbox TTS is developed by Resemble AI, released as an open-source model under MIT license. |
| Model scope / language support | Supports many models, including the “XTTS-v2” model: supports 17 languages. Also claims “+1100 languages” via certain frameworks. | Supports 23+ languages in the Chatterbox Multilingual model. |
| Voice cloning & zero-shot capabilities | XTTS-v2 supports voice cloning with just a short reference audio clip (6 seconds) and cross-language voice cloning. | Zero-shot voice cloning is a prominent feature: clone voices from a few seconds of reference audio; includes “emotion/exaggeration control.” |
| Emotion / style control | Coqui supports style and voice cloning, but less emphasis (in marketing) on exaggerated emotion controls. | Chatterbox emphasises expressive/emotional control (“exaggeration/intensity control”) as a key differentiator. |
| Intended audience & usability | Strong toolkit orientation: many models, training/fine-tuning, researcher/developer focus. Eg: blog says “for software engineers and data scientists.” | More turnkey/model-oriented: the model itself is emphasised, with developers/creators in mind (games, video, agents) and easy reference audio support. |
| Performance / latency claims | Documentation indicates streaming inference with <200 ms latency under “XTTS” model. | Claims “ultra-low latency of sub 200ms” for production use in interactive media. |
| Model maturity / ecosystem | Larger and more mature ecosystem of tools, many models, fine-tuning support, dataset utilities. | Very recent release (as of 2024/2025), high quality, but fewer years of ecosystem maturity compared to Coqui’s history. |
| Community feedback & limitations | Some community commentary: e.g., one Reddit user: “Cloned voice does not feel like clone (although it did have some features of the source voice).” Also note the company shutdown means less commercial backing, maybe less support/maintenance. |
Early reviews highlight excellent cloning and expressiveness; but some users mention install / dependency issues. |
| Licensing & commercial use | The code is open source; however you’ll want to confirm specific model license and commercial-use restrictions. The company’s shutdown may impact future updates/hosting. | MIT-licensed model (Chatterbox) means very permissive use, which is a strong plus. |
| Best suited for | Projects where you want full control: self-hosting, fine-tuning/custom voices, many languages, training your own models. | Projects where you care most about voice quality, expressiveness, voice-cloning ease, and want a “plug-in” model ready for use without heavy training. |