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Coqui AI

Open-source AI text-to-speech and voice cloning toolkit for developers building speech applications.

  • Open source
  • Free forever

What is Coqui AI?

Coqui AI is an open-source toolkit that provides text-to-speech (TTS) and voice cloning capabilities for developers. Built on deep learning models, it lets you generate natural-sounding speech from text and create custom voices by cloning existing voice samples. The toolkit is designed for developers who want to add speech synthesis to their applications without relying on proprietary, closed-source services. You can run Coqui locally or integrate it via API, giving you control over your data and deployment. It's particularly useful for building applications that need affordable, flexible speech generation at scale.

Key features

Text-to-speech synthesis

converts written text into natural-sounding audio output

Voice cloning

create custom voices by training models on voice samples

Open-source codebase

full access to models and code for customisation and self-hosting

Multi-language support

generate speech in multiple languages

Local deployment

run inference on your own servers or devices without cloud dependency

Adjustable voice parameters

control speed, pitch, and other speech characteristics

Pros & cons

Advantages

  • Free and open-source, with no licensing costs or usage fees
  • Run locally or self-host, keeping data on your own infrastructure
  • Voice cloning with relatively small amounts of training audio
  • Active development and community support
  • Suitable for integration into custom applications

Limitations

  • Requires technical knowledge to set up and configure compared to commercial services
  • Audio quality may not match premium commercial TTS providers in all cases
  • Voice cloning quality depends on the quality and quantity of training audio provided

Use cases

Building voice assistants and chatbots that need natural speech output

Creating audiobook narration or podcast production tools

Generating voice for video games, animations, or interactive media

Developing accessibility features for applications that read text aloud

Building customer service applications with personalised voice responses

Ready to try Coqui AI?

Pricing

Open Source

Free

Full access to TTS and voice cloning models, source code, self-hosting and local deployment

Get started with Coqui AI

Click through to Coqui AI and start using it now.

  • Open source
  • Free forever