Launching today
Bulbul V4 Flash
Expressive Indian-language speech, built for real time
1 follower
Expressive Indian-language speech, built for real time
1 follower
Bulbul V4 Flash is Sarvam AI's text-to-speech model built for natural, expressive speech across Indian languages. It delivers under 250 ms time-to-first-audio, with 83 voices across 11 languages and 224 voice-and-style combinations. It's up to 40% faster than Bulbul V3 under comparable load and costs ₹20 per 10,000 characters. Try it through the Sarvam API, Playground, or Content Studio.
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Launch tags:Artificial Intelligence
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Bulbul V4 Flash is Sarvam AI's latest text-to-speech model, built to make Indian-language voices sound more natural, expressive, and responsive.
The problem
Building voice experiences for Indian users isn't just about converting text into audio. The voice needs to sound natural, pronounce regional words correctly, and respond quickly enough for a real conversation.
The solution
Bulbul V4 Flash brings expressive text-to-speech and low-latency audio generation together, making it easier to build voice agents and other speech-powered experiences.
What makes it different
It's designed with India's linguistic diversity in mind, with support for 11 languages, 83 voices, and 224 voice-and-style combinations. It also delivers under 250 ms time-to-first-audio and is up to 40% faster than Bulbul V3 under comparable load.
What you get:
Natural, expressive speech with improved pacing, emphasis, and pronunciation
Support for 11 languages and Indian English
83 voices and 224 voice-and-style combinations
Under 250 ms time-to-first-audio for responsive voice experiences
₹20 per 10,000 characters, one-third less than Bulbul V3
Access through the API, Playground, and Content Studio
Who it's for
Developers building voice agents, conversational AI, customer support systems, IVR experiences, and applications that need natural Indian-language speech.
Try it:
Explore the Bulbul V4 Flash announcement, try the Sarvam Playground, or check the API documentation.