Compare software

Tortoise TTS vs CosyVoice: catalog facts
Tortoise TTSCosyVoice
Free

Free and open source under the Apache-2.0 license.

Free

Free and open source.

Windows, macOS, Linux, Command line Linux, Self-hosted
  • Emphasizes realistic prosody and intonation over raw generation speed
  • Apache-2.0 licensed for unrestricted local use
  • Zero-shot voice cloning across multiple languages
  • Includes training and deployment code, not only inference
  • Notably slower to generate speech than many newer TTS alternatives
  • No repository update reflected since late 2024
  • Requires Python setup and a GPU for practical use
  • Aimed at technical users rather than casual listeners
Downloadable app, Self-hosted Downloadable app, Self-hosted
Open source Open source
License: Apache-2.0 License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.