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---
license: apache-2.0
language:
- en
---
## 👉🏻 IndexTTS2 👈🏻 ## 👉🏻 IndexTTS2 👈🏻
<center><h3>IndexTTS2: A Breakthrough in Emotionally Expressive and Duration-Controlled Auto-Regressive Zero-Shot Text-to-Speech</h3></center> <center><h3>IndexTTS2: A Breakthrough in Emotionally Expressive and Duration-Controlled Auto-Regressive Zero-Shot Text-to-Speech</h3></center>
<div align="center"> <div align="center">
<a href='https://arxiv.org/abs/2506.21619'> <a href='https://arxiv.org/abs/2506.21619'>
<img src='https://img.shields.io/badge/ArXiv-2506.21619-red?logo=arxiv'/> <img src='https://img.shields.io/badge/ArXiv-2506.21619-red?logo=arxiv'/>
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<img src='https://img.shields.io/badge/GitHub-Demo-orange?logo=github'/> <img src='https://img.shields.io/badge/GitHub-Demo-orange?logo=github'/>
</a> </a>
<br/> <br/>
<a href='https://huggingface.co/spaces/IndexTeam/IndexTTS'> <!--a href='https://huggingface.co/spaces/IndexTeam/IndexTTS'>
<img src='https://img.shields.io/badge/HuggingFace-Demo-blue?logo=huggingface'/> <img src='https://img.shields.io/badge/HuggingFace-Demo-blue?logo=huggingface'/>
</a> </a-->
<a href='https://huggingface.co/IndexTeam/IndexTTS-2.0'> <a href='https://huggingface.co/IndexTeam/IndexTTS-2'>
<img src='https://img.shields.io/badge/HuggingFace-Model-blue?logo=huggingface' /> <img src='https://img.shields.io/badge/HuggingFace-Model-blue?logo=huggingface' />
</a> </a>
<br/> <br/>
<a href='https://modelscope.cn/studios/IndexTeam/IndexTTS-Demo'> <!--a href='https://modelscope.cn/studios/IndexTeam/IndexTTS-Demo'>
<img src='https://img.shields.io/badge/ModelScope-Demo-purple?logo=modelscope'/> <img src='https://img.shields.io/badge/ModelScope-Demo-purple?logo=modelscope'/>
</a> </a-->
<a href='https://modelscope.cn/models/IndexTeam/IndexTTS-2.0'> <a href='https://modelscope.cn/models/IndexTeam/IndexTTS-2'>
<img src='https://img.shields.io/badge/ModelScope-Model-purple?logo=modelscope'/> <img src='https://img.shields.io/badge/ModelScope-Model-purple?logo=modelscope'/>
</a> </a>
</div> </div>
### Contact
QQ Group：553460296(No.1) 1048202584(No.2) 764630270(No.3)\
Discord：https://discord.gg/uT32E7KDmy \
Emal：indexspeech@bilibili.com \
欢迎大家来交流讨论！
## 📣 Updates
- `2025/09/08` 🔥🔥🔥 We release the **IndexTTS-2**
- The first autoregressive TTS model with precise synthesis duration control: supporting both controllable and uncontrollable modes
- The model achieves highly expressive emotional speech synthesis, with emotion-controllable capabilities enabled through multiple input modalities.
- `2025/05/14` 🔥🔥 We release the **IndexTTS-1.5**, Significantly improve the model's stability and its performance in the English language.
- `2025/03/25` 🔥 We release **IndexTTS-1.0** model parameters and inference code.
- `2025/02/12` 🔥 We submitted our paper on arXiv, and released our demos and test sets.
## Acknowledge ## Acknowledge
1. [tortoise-tts](https://github.com/neonbjb/tortoise-tts) 1. [tortoise-tts](https://github.com/neonbjb/tortoise-tts)