Sarvam AI

Full Indian language AI stack for Bolna voice agents. LLM, speech-to-text, and text-to-speech tuned for Hindi, Tamil, Telugu, Kannada, and 10+ languages.

How Sarvam AI fits in the stack

Best for
Turning noisy phone audio into text the agent can reason over.

Use this layer when
Recognition accuracy, language coverage, and latency matter most.

Connects to
Telephony audio upstream and your LLM downstream.

Voice Stack

Speech-to-text is the listening layer

This provider converts raw audio into text in real time. It shapes how accurately the agent hears the caller and how natural the back-and-forth feels.

Telephony → STT → LLM → TTS → Tools

This page focuses on where Sarvam AI fits in a production voice stack. For full setup steps, credentials, and API details, use the documentation link above.

Overview

Sarvam AI is an AI platform built custom for India. It natively understands and speaks 10+ Indian languages (like Hindi, Tamil, Telugu, and Kannada) with perfect regional accents, making your voice agents sound like real locals.

With Sarvam, you get everything you need in one place: smart language models (LLMs) to understand Indian culture, Speech-to-Text (STT) that handles heavy accents perfectly, and Text-to-Speech (TTS) voices that sound entirely human.

Capabilities

1. Language Model (LLM)

Instead of just translating English, Sarvam’s AI is trained directly on Indian languages. It easily understands heavy regional accents, cultural references, and common mixed languages like Hinglish.

Supported Languages: Hindi, Tamil, Telugu, Kannada, Malayalam, Bengali, Marathi, Gujarati, Punjabi, Odia, and more.

2. Speech-to-Text (STT)

Sarvam's STT (Saarika) easily transcribes over 10 Indian languages. It cuts through typical background noise and understands heavy regional accents perfectly.

Key Features:

  • Fast processing for smooth conversations
  • Easily understands regional accents
  • Gets mixed languages right (Hinglish, Tanglish, etc.)
  • Works great even with background noise

3. Text-to-Speech (TTS)

Sarvam's TTS (Bulbul) gives you voices that don't sound like robots. They sound exactly like real, native speakers with natural tone and emotion.

Available Voices:

  • Many different voices for each language
  • Different ages and genders
  • Perfect regional accents
  • Natural, human-like rhythm and tone

Features & Use Cases

Truly Understands Indian Languages
Built directly for Indian languages so conversations feel natural, local, and culturally aware.

Code-Switching Ready
Easily understands when callers mix English with their regional languages, like Hinglish or Tanglish.

Handles Heavy Accents
The AI is specifically trained to accurately understand all types of Indian accents and dialects.

Natural, Authentic Voices
Voices sound like real people, not clumsy AI translations, keeping callers comfortable and engaged.

Built for Real Indian Phone Calls
Works smoothly on Indian networks without any lag or awkward delays during the conversation.

Use Case: All-India Customer Support
Easily run support lines that automatically recognize the caller's language and respond perfectly in it.

Use Case: Reaching Rural Markets
Connect directly with customers outside main cities by having voice agents speak their exact local dialects.

Use Case: Regional Banking Services
Easily meet rules requiring financial help in local languages while giving customers a much friendlier experience.