Voxtral TTS
Authors: name: Alexander H. Liu, name: Alexis Tacnet, name: Andy Ehrenberg, name: Andy Lo, name: Chen-Yo Sun, name: Guillaume Lample, name: Henry Lagarde, name: Jean-Malo Delignon, name: Jaeyoung Kim, name: John Harvill, name: Khyathi Raghavi Chandu, name: Lorenzo Signoretti, name: Margaret Jennings, name: Patrick von Platen, name: Pavankumar Reddy Muddireddy, name: Rohin Arora, name: Sanchit Gandhi, name: Samuel Humeau, name: Soham Ghosh, name: Srijan Mishra, name: Van Phung, name: Abdelaziz Bounhar, name: Abhinav Rastogi, name: Adrien Sadé, name: Alan Jeffares, name: Albert Jiang, name: Alexandre Cahill, name: Alexandre Gavaudan, name: Alexandre Sablayrolles, name: Amélie Héliou, name: Amos You, name: Andrew Bai, name: Andrew Zhao, name: Angele Lenglemetz, name: Anmol Agarwal, name: Anton Eliseev, name: Antonia Calvi, name: Arjun Majumdar, name: Arthur Fournier, name: Artjom Joosen, name: Avi Sooriyarachchi, name: Aysenur Karaduman Utkur, name: Baptiste Bout, name: Baptiste Rozière, name: Baudouin De Monicault, name: Benjamin Tibi, name: Bowen Yang, name: Charlotte Cronjäger, name: Clémence Lanfranchi, name: Connor Chen, name: Corentin Barreau, name: Corentin Sautier, name: Cyprien Courtot, name: Darius Dabert, name: Diego de las Casas, name: Elizaveta Demyanenko, name: Elliot Chane-Sane, name: Emmanuel Gottlob, name: Enguerrand Paquin, name: Etienne Goffinet, name: Fabien Niel, name: Faruk Ahmed, name: Federico Baldassarre, name: Gabrielle Berrada, name: Gaëtan Ecrepont, name: Gauthier Guinet, name: Genevieve Hayes, name: Georgii Novikov, name: Giada Pistilli, name: Guillaume Kunsch, name: Guillaume Martin, name: Guillaume Raille, name: Gunjan Dhanuka, name: Gunshi Gupta, name: Han Zhou, name: Harshil Shah, name: Hope McGovern, name: Hugo Thimonier, name: Indraneel Mukherjee, name: Irene Zhang, name: Jacques Sun, name: Jan Ludziejewski, name: Jason Rute, name: Jérémie Dentan, name: Joachim Studnia, name: Jonas Amar, name: Joséphine Delas, name: Josselin Somerville Roberts, name: Julien Tauran, name: Karmesh Yadav, name: Kartik Khandelwal, name: Kilian Tep, name: Kush Jain, name: Laurence Aitchison, name: Laurent Fainsin, name: Léonard Blier, name: Lingxiao Zhao, name: Louis Martin, name: Lucile Saulnier, name: Luyu Gao, name: Maarten Buyl, name: Manan Sharma, name: Marie Pellat, name: Mark Prins, name: Martin Alexandre, name: Mathieu Poirée, name: Mathieu Schmitt, name: Mathilde Guillaumin, name: Matthieu Dinot, name: Matthieu Futeral, name: Maxime Darrin, name: Maximilian Augustin, name: Mert Unsal, name: Mia Chiquier, name: Mikhail Biriuchinskii, name: Minh-Quang Pham, name: Mircea Lica, name: Morgane Rivière, name: Nathan Grinsztajn, name: Neha Gupta, name: Olivier Bousquet, name: Olivier Duchenne, name: Patricia Wang, name: Paul Jacob, name: Paul Wambergue, name: Paula Kurylowicz, name: Philippe Pinel, name: Philomène Chagniot, name: Pierre Stock, name: Piotr Miłoś, name: Prateek Gupta, name: Pravesh Agrawal, name: Quentin Torroba, name: Ram Ramrakhya, name: Randall Isenhour, name: Rishi Shah, name: Romain Sauvestre, name: Roman Soletskyi, name: Rosalie Millner, name: Rupert Menneer, name: Sagar Vaze, name: Samuel Barry, name: Samuel Belkadi, name: Sandeep Subramanian, name: Sean Cha, name: Shashwat Verma, name: Siddhant Waghjale, name: Siddharth Gandhi, name: Simon Lepage, name: Sumukh Aithal, name: Szymon Antoniak, name: Tarun Kumar Vangani, name: Teven Le Scao, name: Théo Cachet, name: Theo Simon Sorg, name: Thibaut Lavril, name: Thomas Chabal, name: Thomas Foubert, name: Thomas Robert, name: Thomas Wang, name: Tim Lawson, name: Tom Bewley, name: Tom Edwards, name: Tyler Wang, name: Umar Jamil, name: Umberto Tomasini, name: Valeriia Nemychnikova, name: Vedant Nanda, name: Victor Jouault, name: Vincent Maladière, name: Vincent Pfister, name: Virgile Richard, name: Vladislav Bataev, name: Wassim Bouaziz, name: Wen-Ding Li, name: William Havard, name: William Marshall, name: Xinghui Li, name: Xingran Guo, name: Xinyu Yang, name: Yannic Neuhaus, name: Yassine El Ouahidi, name: Yassir Bendou, name: Yihan Wang, name: Yimu Pan, name: Zaccharie Ramzi, name: Zhenlin Xu
Organization: Mistral AI_

We introduce Voxtral TTS, an expressive multilingual text-to-speech model that generates natural speech from as little as 3 seconds of reference audio. Voxtral TTS adopts a hybrid architecture that combines auto-regressive generation of semantic speech tokens with flow-matching for acoustic tokens. These tokens are encoded and decoded with Voxtral Codec, a speech tokenizer trained from scratch with a hybrid VQ-FSQ quantization scheme. In human evaluations conducted by native speakers, Voxtral TTS is preferred for multilingual voice cloning due to its naturalness and expressivity, achieving a 68.4\% win rate over ElevenLabs Flash v2.5. We release the model weights under a CC BY-NC license.