About Tunk.ai

We're teaching machines to hold a conversation.

Tunk.ai builds voice AI agents that answer, understand, and resolve customer calls in 50+ languages — powered by a speech-to-text engine we built from the ground up.

50+
Languages supported: 24/7
Agent availability: Real-time
Streaming transcription: Human + AI
Transcription workflows

Our Story

Tunk started inside the speech-to-text industry, where accurate transcription stayed locked behind enterprise pricing and English-first models. We built our own engine to change that — and it grew into a platform that talks back.

01
Speech-to-text roots
We built our own engine to make accurate transcription affordable and multilingual — for every team, not just enterprises.
02
Going real-time
Streaming speech-to-text brought that accuracy to live conversations: captions, agent assist, and voice interfaces.
03Today
Voice AI agents
The same engine now powers AI agents that hold full business conversations — answering, understanding, and resolving calls on their own.

What We Build

One voice stack — from raw speech to full conversations.

Voice AI Agents

AI agents that answer every call — qualifying leads, booking appointments, and resolving support queries with human-like conversation, 24/7, in your customer's language.

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Real-Time Speech-to-Text

Streaming transcription with low latency for live calls, captions, and agent assist.

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Speech-to-Text API

Batch transcription that stays accurate across accents and acoustic conditions — in 50+ languages.

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How We Work

The principles behind everything we ship.

Human at the core

AI that serves people — transparent, fair, and accountable. Every product we ship keeps a human in the loop.

Always learning

Our models improve every day. So do we. Standing still isn't an option in voice AI — and we wouldn't want it to be.

Built for everyone

50+ languages, every accent. Voice AI shouldn't have a default user — and ours doesn't.

Ship the future

We build for where voice is going, not where it's been — one bold idea, one fearless step at a time.

Sustainable ambition

Big goals, no burnout. We design a culture where well-being and ambition coexist — the journey matters as much as the destination.

The People

Builders from the speech industry, advised by people who shaped modern voice communications.

Diwakar Set

Founder & CEO

Years in the speech-to-text industry convinced him voice is the next interface. As Founder & CEO, he turns that conviction into products for global markets — and finds inspiration in time-loop movies, seeing life as a series of fascinating coincidences.

Himanshu Sagar

Co-Founder & CTO

An expert in generative AI and backend systems, Himanshu turns bold ideas into shipped products, leading projects from inception to launch. He recharges with spiritual series and sci-fi, drawing on cosmic wisdom and futuristic tech alike.

Jack Meek

Advisor

Customer experience and enterprise operations leader with 30+ years scaling global engagement organizations at Transcom, GoDaddy, AT&T, and Cox Communications. He advises Tunk.ai on enterprise growth, AI-powered CX strategy, and voice automation at global scale.

Jeff Pulver

Advisor

VoIP pioneer who helped shape the voice-over-IP industry — founder of Free World Dialup, founding chairman of Vonage, and leader of the vCon Foundation. He advises Tunk.ai on AI communication ecosystems and the future of conversational intelligence.