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Kotoba Technologies
Kotoba Technologies is a voice AI company headquartered in Tokyo, Japan, developing real-time speech foundation models and enterprise voice solutions with high accuracy and ultra-low latency.
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Kotoba Technologies at a glance
Kotoba Technologies is an artificial intelligence company headquartered in United States. It has raised at least $21.8M across the 2 funding rounds on record. Its most recent funding round, Seed, raised $10M in June 2026. Xcout tracks 2 named people at Kotoba Technologies, including Jungo Kasai (Co-founder).
Kotoba Technologies leadership
- Jungo KasaiCo-founder
- Noriyuki KojimaCo-founder
Kotoba Technologies funding rounds
At least $21.8M raised across the 2 rounds on record. Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Seed | $10M | 3 named | |
| Seed | $11.8M | 3 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Investors
Kotoba Technologies competitors
A few of Kotoba Technologies's closest competitors — see the full list of competitors and alternatives →
Miso Labs develops emotive foundation models and real-time text-to-speech technology for voice agents. The company offers ultra-low latency voice responses, one-shot voice cloning, and open-source models designed for local, on-premises deployment to serve enterprise teams and developers.
Kalpa Labs is a company headquartered in San Francisco, California, that is training a generalist model for all speech tasks. This model can be steered like a large language model (LLM), allowing for long system prompts and the use of native contextual information.
Boson AI builds voice agents and foundation audio models for business-critical workflows. Its product offerings include real-time speech-to-speech models, voice cloning and design, real-time avatars, and production text-to-speech supporting over 100 languages.
Eloquence Communications develops advanced, multilingual conversational AI technologies and language models designed for safety-critical applications, contact centers, and smart home assistants. The company focuses on sustainable, ethical, and unbiased AI solutions that adhere to European values and data privacy standards.
MiniMax is a general AI technology company that develops multimodal foundation models and AI-native products including text, video, speech, and music generation tools.
Prajna Labs builds trustworthy, multilingual, and multimodal artificial intelligence solutions tailored for Bharat. The company develops AI technologies designed to serve Indian languages and contexts.
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More on Kotoba Technologies in Xcout Intel
- 2 named people with titles, LinkedIn and board committees
- 2 funding rounds with the investors in each, and who they co-invest with
- The full competitor set, tracking, exports and API access