Conversational ・ Friendly
News ・ Authoritative
Conversational ・ Consistent
Entertainment ・ Dynamic
Want to use this API?
A customer says 'Mera account balance check karna hai, last transaction bhi batao.' Most TTS engines choke on the Hindi-English switch. Bulbul V3 handles Hinglish, Tanglish, and Benglish natively because it was trained on how Indians actually speak.
'Lajpat Nagar' becomes garbled. 'Dr. Lal PathLabs' is unrecognizable. 'Koramangala' turns into nonsense. Bulbul V3 is trained on Indian speech data. Names, addresses, and abbreviations sound right.
Voice agents run over phone lines at 8kHz, not studio-quality 24kHz. Most TTS sounds acceptable at high quality but falls apart at telephony bitrates. Bulbul V3 is optimized for 8kHz output, so your voice agent sounds natural on actual phone calls.
Install the SDK
pip install sarvamai or npm install sarvamai. OpenAI-compatible API, so if you've integrated any LLM, this is familiar.
Pick a voice for your brand
35+ voices across 11 languages. Arjun for authoritative banking, Meera for warm customer service, Amol for casual Hinglish. Preview all voices before committing.
Stream over WebSocket
Sub-250ms first-byte latency. Send text, get audio chunks in real-time. Works with LiveKit, Pipecat, Twilio, Exotel, and Ozonetel out of the box.
Go live with enterprise SLAs
SOC 2 Type II certified. ISO 27001. All data processed in India (RBI data localization compliant). 99.9% uptime SLA on enterprise plans.
from sarvamai import SarvamAI client = SarvamAI(api_subscription_key="YOUR_KEY") audio = client.text_to_speech.convert( text="Hello, main Suresh bol raha hoon ABC Finance se. Aapka loan approve ho gaya hai.", target_language_code="hi-IN", model="bulbul:v3", speaker="arjun", pitch=0, pace=1.1, enable_preprocessing=True )
Drop-in integration with leading voice infrastructure providers. REST and WebSocket APIs.
Real-time streaming over WebSocket. No buffering, no awkward pauses in conversation.
Sounds natural at phone-line quality, not just studio quality. Optimized for the bitrate your callers actually hear.
Pick a voice that fits your brand. Adjust warmth, authority, and pacing for the exact call flow.
Hindi, Tamil, Telugu, Bengali, Malayalam, Marathi, Gujarati, Kannada, Punjabi, Odia, Assamese. One API, all languages.
Enterprise-grade security. Data processed in India. No training on customer data. RBI compliant.
Starting at ₹30 per 10K characters. View pricing
Higher is better
ElevenLabs Flash V2.5
ElevenLabs V3 Alpha
Cartesia Sonic-3
SBI, HDFC, ICICI handle millions of Hindi calls daily. Voice agents process balance inquiries, loan status, and EMI reminders. RBI mandates data localization. Sarvam processes everything in India.
LIC has 300 million policyholders. Claims processing, renewal reminders, and policy servicing in Tamil, Telugu, Hindi, and more. Complex terms like 'sum assured' and 'maturity benefit' spoken naturally.
Order confirmations, delivery updates, COD collection calls. Indian addresses and PIN codes pronounced correctly. Handles 'cash on delivery' in Hinglish without breaking.
Jio, Airtel, Vi serve 1 billion+ subscribers. Plan info, recharge confirmations, complaint resolution. Data pack names and validity periods communicated in the customer's language.
India's banking regulator (RBI) requires customer data to be stored and processed within India. For voice agents handling financial conversations, this means your TTS provider must process audio generation on Indian infrastructure. Sarvam's entire stack runs in India. No data leaves the country, no exceptions.
Beyond compliance, latency matters. A voice agent with a TTS provider hosted in US-East adds 200-300ms of network round-trip on top of generation time. That's the difference between a natural conversation and an awkward pause. Sarvam's India-hosted infrastructure delivers sub-250ms first-byte latency to Indian callers.
For enterprises evaluating TTS providers, the checklist is short: Does it sound natural in Hindi? Does it handle Hinglish? Is it fast enough for real-time conversation? Does it meet RBI data localization? Does it have SOC 2? Sarvam checks all five.
Samvaad is Sarvam's end-to-end conversational AI platform. It goes beyond TTS to handle the entire voice agent pipeline, purpose-built for Indian languages.
Natural, expressive voices for customer service in every major Indian language.
Start building your voice agent Powered by Bulbul V3
Start building your voice agent
Powered by Bulbul V3
