Kotoba is a frontier voice AI company building a real-time speech model and simultaneous translation technology.
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5/JY%&=$W
Frontier voice model for AI agents and speech translation—available on-premise, on-cloud, and on-device.
Koto is Kotoba's end-to-end voice AI model built for ultra-low-latency, real-time speech. It delivers exceptional performance in East Asian languages across text-to-speech and speech-to-text for AI agents and voice interfaces, plus speech-to-speech for simultaneous translation—and runs on-premise or on-device.
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Never get lost in translation.
The Kotoba app provides real-time simultaneous translation so conversations can flow naturally across languages. Built on Kotoba’s speech AI model, it delivers fast, accurate translation in both voice and text.
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