The only voice AI harness that you'll ever need.

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  • SBI Life
  • Krafton
  • Randstad
  • Bajaj Finserv
  • Neuberg Diagnostics
  • Mphasis

A call is more than words. Most voice AI only hears the words.

Try a live call for free
Production conversations powering the platform
275K+
Response accuracy on noisy telephony audio
98.7%
Sub-500ms multilingual engine, P-90 latency
<500ms

  • Zero dead air

    Our agents make small talk.

  • Turn taking

    Agents pause when it’s relevant.

  • Effective communication

    Auto-switch to your language and dialect.

  • Ultra realistic voice

    Realistic voices with emotional tags.

  • Lowest latency

    Best-in-class p90 latency of ~450ms.

A real conversation. Your use case.

Choose a use case, pick an agent and try a conversation.

Financial Services

Manage payments and policies.

Choose an agent

Taking too long to build an agent from scratch?

No problem. Launching Teacher AI. Let our AI build it for you.

  1. Tough to build a nuanced agent? Not anymore

    Describe the agent in your own words

    Tell Teacher AI who to call, what to say, and what counts as success, in plain language. You don't need prompt engineering or flowcharts. One sentence is enough to start.

  2. Agents break on the questions nobody thought to ask.

    Answer a few clarifying questions

    Teacher AI asks about what's missing: languages, objections, qualifying criteria, and handoffs. Each answer tightens the agent before it ever makes a call.

  3. Stitching voice, language and tools together takes time.

    Watch it build in seconds

    The prompt, voice, language mix, and tools come together live, with a readiness score as it goes. You get a deployment-ready agent, not a draft to finish.

  4. One prompt tweak can quietly break a live agent.

    Review the prompt diff, then accept

    See exactly what changed, with recommended settings for latency, voice, and turn-taking. Nothing is saved until you approve it.

  5. Every small change means starting the build over.

    Keep refining by chat

    Ask Teacher AI to change the tone, add a language, or handle a new objection on an existing agent. It updates the same way, with a diff to review.

  6. That’s it. Your agent is ready for its first call.

Do your customers have to keep giving context every call?

That's a lot of friction. Not anymore. Launching Memories.

Past callsEvery call with this caller, retained and stored.

  1. 12 OctWhere is order #48213?
  2. 15 OctDelayed. Wants a UPI refund.
  3. 18 OctPrefers Hindi.
  4. 20 OctWhatsApp, not SMS.

Another agentContext shared by a different agent.

Order Support · 19 Oct

Courier delay confirmed. Refund approved.

Custom context filterChoose how many past calls to use, and which ones.

Refer past calls for #48213 only, from the last 4 calls

Cumulated contextOnly what this call needs.

Context for this call

  • Order #48213, refund approved
  • Speaks Hindi
  • Updates on WhatsApp

Delivered with easeThe agent picks up where the last call left off.

Live call · Priya

“Namaste Priya ji! #48213 ka refund approve ho gaya. Details WhatsApp pe bhejun?”

Nothing to repeat

Customers who don't have to repeat themselves are less frustrated.

From first agent to millions of calls

Real conversations in Hindi, English, Kannada, and more, from the teams already shipping on Vaani.

Outbound sales

Partnered with IndiaFilings

Automated first contact, qualifying founders in need of Compliance services.

Leads qualified
891
  1. First contact
  2. Qualify founders
  3. Expert callback

Outbound sales

Partnered with Prateek Group

Automated broker outreach, qualified 40 warm leads for RM callback.

Calls completed
16,282
  1. Broker outreach
  2. Filter contacts
  3. Relationship manager

Inbound sales

Partnered with Sat Kartar Life

Handled product inquiries, qualifying buyers for human agent transfers to complete sales.

Ready-to-buy transfers
4,409
  1. Customer enquiry
  2. Qualify intent
  3. Human handoff

Enterprise-grade security. On your terms.

Keep control of your data, your infrastructure and the way Vaani connects to your business.

Data security

Local Data Residency

Keep conversations on local infrastructure, with deployment options that meet your organisation’s data residency requirements.

Trust, built into every conversation.

Privacy standards, encrypted data and a clear audit trail. Built to protect your conversations and give your team control.

Compliance ready

Built to meet global privacy and security standards.

  • DPDP Act
  • SOC 2
  • ISO 27001
  • HIPAA
  • GDPR

Encryption at every step

Your conversations are protected in transit and at rest.

  • Consent recorded00:02
  • SSO · role-based access00:04
  • Retention policy applied00:06

Every call, auditable.

Built in Bengaluru, from the model up.

Voice AI should follow a conversation as naturally as people do, across accents, languages and the Hindi-English switches in between.

We build the speech model, the call engine and the agent platform together. That keeps the research close to the voices and workflows it needs to serve.

  1. 2017

    A question at IISc.

    The research began around 2017, with a conviction that voice models should work for the way India speaks.

  2. 2024

    From conviction to a lab.

    After seven years, the founders left their corporate careers and began building Vaani in late 2024.

  3. Today

    Sixteen people. One stack.

    Researchers, engineers and product builders in Bengaluru, taking ideas from the model into real customer calls.

Every layer, built together.

  1. Our speech modelThe Latent Speech Model, built for Indic speech.
  2. Our call engineC++ orchestration that keeps conversations moving.
  3. Your voice agentsOne platform to build, deploy and improve.
Founders
IISc and IIT Madras alumni
Backed by
Venture Catalysts, Google for Startups AI Accelerator, NASSCOM GenAI Foundry

Humanizing AI,one call at a time.

Try a live call for free

Sign up and get 1000 free credits!

Sign up for the waitlist and get in on the action.

You’re on the waitlist.

Thank you for signing up. We’ll email you with your early access details and 1,000 free credits.

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