Overview
Kotoba Technologies, Inc. is a Tokyo-based company that develops real-time voice AI technology to facilitate communication across language barriers. The company's primary focus is on creating ultra-low latency speech recognition and translation solutions.
The founders of Kotoba Technologies are Dr. Noriyuki Kojima and Dr. Jungo Kasai, both PhD holders in AI from top U.S. institutions. They established the company in July 2023.
Activities and products
Kotoba Technologies' main product is 'Koto', a speech AI model that enables real-time speech-to-speech translation with minimal delay. The Koto Voice Interface supports multiple languages, including Japanese, English, Chinese, Korean, and Spanish. This technology aims to bridge language gaps in various contexts.
Stage and funding
Kotoba Technologies has secured seed funding of $1.18M in June 2025. The company was selected for the METI/NEDO GENIAC project in its first three rounds, indicating some level of recognition within the industry. Kotoba Technologies' products have been featured in various publications, including NHK and Forbes Japan, as well as NVIDIA's platform.
Photograph: Markus Winkler / Unsplash
Company details
- Legal name
- Kotoba Technologies, Inc.
- Website
- www.kotoba.tech
- Headquarters
- Tokyo, Japan
- Founded
- 2023
- Sector
- AI infrastructure
- Funding stage
- Seed