Supertone

Supertone is a South Korean voice AI platform, part of HYBE, offering TTS, real-time voice changing, voice cloning and audio enhancement, with especially strong Korean and multilingual speech and developer APIs.

Supertone, founded in 2020 and headquartered in South Korea, builds a voice intelligence platform spanning several products. Supertone Play is a text-to-speech studio with 150+ voices, Supertone Shift is a real-time voice-changing and conversion tool popular with streamers and creators, and the company also offers voice cloning, audio enhancement and developer APIs. A distinguishing strength is its Korean-language quality, developed with roots in Seoul National University voice AI research, capturing subtle intonation and emotion that many Western tools miss; its Sona Speech models support around two dozen languages. The company has also pushed on-device, GPU-free TTS with its Supertonic model for low-latency, efficient synthesis. Supertone is backed by and part of HYBE, the entertainment company behind major K-pop acts, giving it strong ties to music and media production. It serves creators, game and media studios, and enterprises through both self-serve products and API integrations, with pricing that spans free trials to enterprise deals.