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Bulbul V4 Flash
Expressive Indian-language speech, built for real time
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.
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.
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About Bulbul V4 Flash on Product Hunt
“Expressive Indian-language speech, built for real time”
Bulbul V4 Flash was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #66 on the daily leaderboard. 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.
Bulbul V4 Flash was featured in Artificial Intelligence (481.7k followers) on Product Hunt. Together, these topics include over 131.2k products, making this a competitive space to launch in.
Who hunted Bulbul V4 Flash?
Bulbul V4 Flash was hunted by Kumar Abhishek. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Bulbul V4 Flash stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Kumar Abhishek
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.