MARS5, open-source, insanely prosodic TTS model

In plain words

MARS5 is an open-source text-to-speech model that generates speech in over 140 languages with advanced prosody control. It uses 2-3 seconds of audio reference to replicate speaking styles, handling demanding scenarios like sports commentary, movies, and anime. Designed for researchers and developers, MARS5 is commercially usable and available on GitHub for research and creative applications.

written from the facts on this page · September 2026

From the sources

MARS5 speech model (TTS) from CAMB.AI. Contribute to Camb-ai/MARS5-TTS development by creating an account on GitHub.

In the maker’s words, at launch

Hey guys, This is Akshat from CAMB.AI. Today's we're super pumped to introduce MARS5, a fully open-source (commercially usable) TTS with break-through prosody and realism available on our Github: https://www.github.com/camb-ai/mars5-tts Watch our release demo here…

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