---
license: cc-by-nc-sa-4.0
tags:
  - text-to-speech
  - diffusion
  - audio
  - speech-synthesis
---

# Echo-TTS

Echo-TTS is a diffusion-based text-to-speech model.  
The weights in this repository are intended for **research and non-commercial use only**.

- Technical overview/samples (blog): https://jordandarefsky.com/blog/2025/echo/
- Code and reference implementation (GitHub): https://github.com/jordandare/echo-tts

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## License

- **Model weights**: Released under **CC-BY-NC-SA-4.0**.
- **Code**: The reference implementation and tooling live in a separate GitHub repository and are released under MIT (except where individual files specify otherwise).

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## Responsible & Restricted Use

By using this model, you agree **not** to use it for:

- **Deception, fraud, or impersonation**, including:
  - Generating audio that mimics a real person’s voice without their explicit consent.
  - Creating deepfakes meant to mislead others about who is speaking.
- **Harassment, abuse, or discrimination**, including targeted abuse or hate content generated in someone’s voice.
- **Misinformation or political manipulation**, such as fabricated statements by public figures.
- Any use that violates applicable laws or regulations.

If you are unsure whether your use is allowed, please treat it as **not allowed** and err on the side of caution.

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