OpenVoice is an open-source instant voice cloning audio foundation model by MIT and MyShell in 2026, enabling accurate tone color cloning, flexible style control (emotion, accent, rhythm), and zero-shot cross-lingual capabilities. V2 supports native multilingual (English, Spanish, French, Chinese, Japanese, Korean) with improved quality under MIT license. Ideal for developers, researchers, content creators needing efficient, customizable TTS and voice cloning—free for commercial/research use.