| | --- |
| | license: mit |
| | language: |
| | - en |
| | tags: |
| | - text-to-speech |
| | - speech generation |
| | - voice-cloning |
| | pipeline_tag: text-to-speech |
| | library_name: chatterbox |
| | --- |
| | |
| | <img width="800" alt="cb-big2" src="https://github.com/user-attachments/assets/bd8c5f03-e91d-4ee5-b680-57355da204d1" /> |
| |
|
| | <h1 style="font-size: 32px">Chatterbox TTS</h1> |
| |
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| | <div style="display: flex; align-items: center; gap: 12px"> |
| | <a href="https://resemble-ai.github.io/chatterbox_demopage/"> |
| | <img src="https://img.shields.io/badge/listen-demo_samples-blue" alt="Listen to Demo Samples" /> |
| | </a> |
| | <a href="https://huggingface.co/spaces/ResembleAI/Chatterbox"> |
| | <img src="https://huggingface.co/datasets/huggingface/badges/resolve/main/open-in-hf-spaces-sm.svg" alt="Open in HF Spaces" /> |
| | </a> |
| | <a href="https://podonos.com/resembleai/chatterbox"> |
| | <img src="https://static-public.podonos.com/badges/insight-on-pdns-sm-dark.svg" alt="Insight on Podos" /> |
| | </a> |
| | </div> |
| | |
| | <div style="display: flex; align-items: center; gap: 8px;"> |
| | <span style="font-style: italic;white-space: pre-wrap">Made with ❤️ by</span> |
| | <img width="100" alt="resemble-logo-horizontal" src="https://github.com/user-attachments/assets/35cf756b-3506-4943-9c72-c05ddfa4e525" /> |
| | </div> |
| |
|
| |
|
| | We're excited to introduce Chatterbox, [Resemble AI's](https://resemble.ai) first production-grade open source TTS model. Licensed under MIT, Chatterbox has been benchmarked against leading closed-source systems like ElevenLabs, and is consistently preferred in side-by-side evaluations. |
| |
|
| | Whether you're working on memes, videos, games, or AI agents, Chatterbox brings your content to life. It's also the first open source TTS model to support **emotion exaggeration control**, a powerful feature that makes your voices stand out. Try it now on our [Hugging Face Gradio app.](https://huggingface.co/spaces/ResembleAI/Chatterbox) |
| |
|
| | If you like the model but need to scale or tune it for higher accuracy, check out our competitively priced TTS service (<a href="https://resemble.ai">link</a>). It delivers reliable performance with ultra-low latency of sub 200ms—ideal for production use in agents, applications, or interactive media. |
| |
|
| | # Key Details |
| | - SoTA zeroshot TTS |
| | - 0.5B Llama backbone |
| | - Unique exaggeration/intensity control |
| | - Ultra-stable with alignment-informed inference |
| | - Trained on 0.5M hours of cleaned data |
| | - Watermarked outputs |
| | - Easy voice conversion script |
| | - [Outperforms ElevenLabs](https://podonos.com/resembleai/chatterbox) |
| |
|
| | # Tips |
| | - **General Use (TTS and Voice Agents):** |
| | - The default settings (`exaggeration=0.5`, `cfg=0.5`) work well for most prompts. |
| | - If the reference speaker has a fast speaking style, lowering `cfg` to around `0.3` can improve pacing. |
| |
|
| | - **Expressive or Dramatic Speech:** |
| | - Try lower `cfg` values (e.g. `~0.3`) and increase `exaggeration` to around `0.7` or higher. |
| | - Higher `exaggeration` tends to speed up speech; reducing `cfg` helps compensate with slower, more deliberate pacing. |
| |
|
| |
|
| | # Installation |
| | ``` |
| | pip install chatterbox-tts |
| | ``` |
| |
|
| |
|
| | # Usage |
| | ```python |
| | import torchaudio as ta |
| | from chatterbox.tts import ChatterboxTTS |
| | |
| | model = ChatterboxTTS.from_pretrained(device="cuda") |
| | |
| | text = "Ezreal and Jinx teamed up with Ahri, Yasuo, and Teemo to take down the enemy's Nexus in an epic late-game pentakill." |
| | wav = model.generate(text) |
| | ta.save("test-1.wav", wav, model.sr) |
| | |
| | # If you want to synthesize with a different voice, specify the audio prompt |
| | AUDIO_PROMPT_PATH="YOUR_FILE.wav" |
| | wav = model.generate(text, audio_prompt_path=AUDIO_PROMPT_PATH) |
| | ta.save("test-2.wav", wav, model.sr) |
| | ``` |
| | See `example_tts.py` for more examples. |
| |
|
| | # Acknowledgements |
| | - [Cosyvoice](https://github.com/FunAudioLLM/CosyVoice) |
| | - [HiFT-GAN](https://github.com/yl4579/HiFTNet) |
| | - [Llama 3](https://github.com/meta-llama/llama3) |
| |
|
| | # Built-in PerTh Watermarking for Responsible AI |
| |
|
| | Every audio file generated by Chatterbox includes [Resemble AI's Perth (Perceptual Threshold) Watermarker](https://github.com/resemble-ai/perth) - imperceptible neural watermarks that survive MP3 compression, audio editing, and common manipulations while maintaining nearly 100% detection accuracy. |
| |
|
| | # Disclaimer |
| | Don't use this model to do bad things. Prompts are sourced from freely available data on the internet. |
