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Resemble AI avatar

Chatterbox TTS

Open text-to-speech models with zero-shot voice cloning in 23+ languages

  • AI media
  • AI models and runtimes
View on GitHub
Website

What it is

Chatterbox is a family of open text-to-speech models from Resemble AI, ranging from a 110M CPU-friendly Nano to a 500M multilingual model, installable as a Python package. It clones a voice from a short reference clip, supports paralinguistic tags like [laugh] and [cough], and offers controls for expressiveness. Developers building voice agents, narration tools, or localized apps can run it locally on GPU or CPU.

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Facts

Stars
27,104 GitHub stars.
27,104

Forks
3,650
Commits
42
Contributors
15
Language
Python
License
MIT
Last commit
Jul 21, 2026
On GitHub since
April 2025
First release
June 2025
Platforms
Linux, library
Self-hostable
No
Alternative to
ElevenLabs, OpenAI TTS
Tags
  • voice-assistant
  • text-to-speech
  • open-weights
  • voice-cloning
  • local-ai

Last synced from GitHub on Oct 20, 2026

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What people are saying

Updated Oct 21, 2026
  • Hacker NewsChatterbox TTSJun 11, 2025 · 670 points · 188 comments (opens Hacker News in a new tab)
  • Hacker NewsChatterbox, Resemble AI's production-grade open source TTS modelMay 31, 2025 · 6 points · 1 comment (opens Hacker News in a new tab)
  • Hacker NewsChatterbox – open-source TTS modelMay 28, 2025 · 5 points · 0 comments (opens Hacker News in a new tab)
  • Bluesky“#opensource alternative to Eleven Labs?”Dec 29, 2025 · 4 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Just found Chatterbox—an open-source TTS engine that sounds uncannily real. It’s like giving any app its own voice, and I’m already imagining new ways to use…”Apr 19, 2026 · 2 likes · 1 reply (opens Bluesky in a new tab)
  • Bluesky“Chatterbox is a new open source Text to Speech model that promises excellent results.”Jan 9, 2026 · 1 like · 1 reply (opens Bluesky in a new tab)
  • Hacker NewsChatterboxJun 5, 2025 · 2 points · 0 comments (opens Hacker News in a new tab)
  • Bluesky“You can now clone a voice from about 5 seconds of recording. It's not perfect, but it's pretty close!”Jun 16, 2025 · 1 like · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Share with anyone who’s not aware of deepfake risks. These samples are open source generated so forget about any rails. Zero-shot (ie claimed to not be cherry…”Jun 13, 2025 · 0 likes · 1 reply (opens Bluesky in a new tab)
  • Bluesky“#opensource alternative to Eleven Labs?”Dec 29, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“High-quality voice-cloning and synthetic text-to-speech is going to impact a significant society as well as vast amount of industries + OSS models becoming…”Jun 18, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Listen to Samples: GitHub:”May 30, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)