About Smallest AI
Smallest AI builds small, low-latency voice models for real-time conversational agents, offering text-to-speech, speech-to-text, and voice agent APIs. It targets enterprise customer support and voice companies.
What is Smallest AI?
What is Smallest AI?
Smallest AI is a voice AI platform offering text-to-speech, speech-to-text, and voice agent APIs. The company's approach is to build small voice models that run with minimal latency, so conversational agents can listen, think, and speak at the same time and sound closer to a human on the phone.
Its site describes the goal as powering enterprise voice that is "real-time, hyper-realistic, and built to scale." Founder and CEO Sudarshan Kamath has described the vision as breaking the Turing test, so that callers cannot tell the AI from a person.
According to TechCrunch, target customers include voice-focused companies such as RingCentral and Truecaller, as well as customer support firms such as Sierra and Decagon. Developers can use the APIs individually, for example for text-to-speech narration, or combine them into full voice agents.
Smallest AI was founded in late 2024. In July 2026 it raised a $13 million Series A led by Seligman Ventures, with Sierra Ventures and 3one4 Capital participating, bringing total funding to more than $21 million.
Pros
- Covers TTS, STT, and full voice agents in one platform
- Small models designed for low latency
- Developer APIs usable for narration or conversational agents
- Focus on natural, human-like speech
Cons
- Young company founded in late 2024
- Competes in a crowded voice AI market
- Enterprise features may require sales engagement
How to Use Smallest AI
- 1Create an account
Sign up on smallest.ai and get an API key.
- 2Pick an API
Choose text-to-speech, speech-to-text, or voice agents.
- 3Select a voice
Choose a voice and configure output settings.
- 4Integrate
Call the API from your app or connect it to your telephony stack.