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Coqui TTS

Coqui TTS

Deep learning toolkit for Text-to-Speech

softwareAI Audio & VoiceText-to-SpeechDeep LearningAI-Powered
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Our Verdict

Best for

Researchers and developers wanting a self-hosted TTS toolkit with ⓍTTS voice cloning

Skip if

You need an actively maintained toolkit — this one has had no commits since August 2024

What is Coqui TTS?

Coqui TTS is a deep learning toolkit for Text-to-Speech, battle-tested in research and production. It provides a flexible and customizable solution for generating high-quality speech from text, with applications in various fields such as virtual assistants, audiobooks, and language learning.

SpecificationsAI-estimated

deploymentSelf-hosted
open source✅ Yes
github stars45,824
api available✅ Yes
support optionsGitHub Issues, Community Forum
key integrationsPython, TensorFlow, PyTorch
primary languagePython

Key Features of Coqui TTS

Generates speech from text using deep learning models such as Tacotron, Glow-TTS, VITS and ⓍTTS
Pretrained models covering more than 1100 languages, including ~1100 Fairseq models
ⓍTTS voice cloning from a short reference clip, with streaming inference under ~200ms latency
Tools for training new models and fine-tuning existing ones in any language
Utilities for dataset analysis and curation
Vocoders including HiFi-GAN and MelGAN for high-quality audio output
Python API and command line for building custom text-to-speech pipelines
Released under MPL-2.0 and runs entirely on your own hardware

Use Cases for Coqui TTS

1

Self-Hosted Voice Interfaces

Generate spoken responses for your own offline assistant, kiosk or IVR system with the model running locally instead of calling a paid cloud TTS API.

2

Audiobooks and Podcasts

Utilize Coqui TTS to create audiobooks and podcasts with natural-sounding speech.

3

Language Learning

Employ Coqui TTS to generate speech for language learning applications, such as pronunciation practice.

4

Accessibility Tools

Leverage Coqui TTS to develop accessibility tools, such as screen readers or speech-enabled interfaces.

Pros & Cons of Coqui TTS

Pros

  • High-quality speech synthesis
  • Customizable and flexible
  • Supports multiple languages and accents
  • Free and open-source

Cons

  • No longer actively developed — the last commit was in August 2024, after Coqui shut down
  • Steep learning curve for training and customization
  • Requires significant computational resources, typically a GPU

Frequently Asked Questions

What is Coqui TTS?

Coqui TTS is a deep learning toolkit for Text-to-Speech, providing a flexible and customizable solution for generating high-quality speech from text.

Is Coqui TTS free?

Yes, Coqui TTS is free and open-source.

What languages does Coqui TTS support?

Coqui TTS supports multiple languages and accents, with pre-trained models available for various languages and domains.

Can I customize Coqui TTS?

Yes, but as a toolkit rather than a tunable engine: you can fine-tune or train your own models with the Python API and CLI, clone a voice from a short sample, and apply its separate voice-conversion models. It does not expose simple pitch, rate or volume controls.

Pricing Overview

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Free

Detailed plans are not listed. Visit the official website for pricing information.

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About the Tool

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Platforms
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Target AudienceResearchers and Developers

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Tags

Text-to-SpeechDeep LearningAI-PoweredSpeech SynthesisNatural Language ProcessingMachine Learning

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