Imagine a world where your favorite app speaks to you in your native language, with an accent that feels like home. That’s the vision driving Sarvam AI, a Bengaluru-based startup, which launched its groundbreaking Bulbul-v2 text-to-speech (TTS) model on May 7, 2025. Supporting 11 Indian languages with authentic regional accents, Bulbul-v2 is poised to transform how businesses and individuals connect in India’s diverse linguistic landscape. From customer service bots to educational tools, this model offers natural, human-like voices at a fraction of the cost of global competitors. Let’s explore what makes Bulbul-v2 a game-changer for India’s AI ecosystem and why it’s generating buzz worldwide.
India’s Linguistic Diversity Meets AI Innovation
India is a tapestry of over 19,500 dialects, where language is not just communication but a bridge to culture and identity. Yet, many AI tools struggle to capture this diversity, often offering generic or robotic voices that feel out of place. Sarvam AI, founded in Bengaluru, is changing that narrative with Bulbul-v2, a TTS model launched to make AI speak “just like India.” Supporting 11 major languages—Hindi, Tamil, Bengali, Kannada, Gujarati, Punjabi, Marathi, Odia, Telugu, Malayalam, and Assamese—Bulbul-v2 delivers voices that resonate with India’s heart and soul.
This launch is more than a tech milestone; it’s a step toward inclusivity. With voice-first interactions gaining traction, especially in rural areas with lower literacy rates, Bulbul-v2 could empower millions by making technology accessible in their native tongues. Sarvam AI’s role as the first startup chosen for India’s sovereign large language model (LLM) under the [IndiaAI mission www.sarvam.ai ] underscores its commitment to this vision.
What is Bulbul-v2?
Bulbul-v2 is Sarvam AI’s flagship TTS model, designed to convert text into natural, human-like speech tailored for Indian languages. Unlike its predecessor, Bulbul-v1, which introduced six preset voice personalities, Bulbul-v2 expands language support and enhances customization. It’s built for businesses, developers, and creators who need high-quality voice solutions, from call center automation to audiobooks.
The model’s standout feature is its authenticity. Sarvam AI claims Bulbul-v2 captures regional accents with precision, avoiding the robotic tones common in global TTS systems. Whether it’s a warm Tamil greeting or a lively Punjabi narration, the voices feel familiar and engaging, making interactions more personal.
Fun Fact: Bulbul-v2’s name is inspired by the bulbul bird, known for its melodious song, symbolizing the model’s harmonious and natural speech.
Key Features and Capabilities
Bulbul-v2 is packed with features that make it versatile and user-friendly. Here’s a breakdown of what it offers:
| Feature | Description |
|---|---|
| Multi-Language Support | Handles 11 Indian languages and code-mixed text, common in bilingual conversations. |
| Real-Time Synthesis | Generates speech instantly, ideal for live applications like chatbots. |
| Fine-Grained Control | Adjusts pitch, pace, and loudness for customized voice output. |
| Custom Voices | Allows brands to create unique voice identities for enhanced engagement. |
| Sample Rate Options | Offers audio quality from 8kHz to 24kHz, suiting various needs. |
| Smart Normalization | Accurately pronounces numbers, dates, and mixed-language text. |
These features enable Bulbul-v2 to excel in diverse scenarios. For instance, a retailer could use it to create a Hindi-speaking chatbot with a friendly tone, while an e-learning platform might produce Tamil audiobooks with clear narration. The model’s low latency—boasting a P90 latency speed of 0.398 seconds—ensures smooth performance, even in high-demand settings.
How Businesses Can Leverage Bulbul-v2
For businesses, Bulbul-v2 is a cost-effective alternative to global TTS models like ElevenLabs. Its India-first pricing makes it accessible to startups and enterprises alike, while its customization options allow brands to craft voices that align with their identity. Imagine a food delivery app using a cheerful Bengali voice to confirm orders or a bank deploying a professional Marathi voice for customer support—Bulbul-v2 makes these scenarios possible.
The model’s ability to handle code-mixed text is particularly valuable in India, where users often blend English with regional languages. For example, a phrase like “Please confirm your order by 5 PM today” in a mix of Hindi and English can be pronounced naturally, enhancing user experience. This flexibility could boost customer satisfaction and retention for businesses targeting India’s 1.4 billion consumers.
Comparing Bulbul-v2 to Global Competitors
While global TTS models like ElevenLabs offer robust features, they often cater to Western markets, with limited support for Indian languages. Bulbul-v2 fills this gap by prioritizing regional accents and affordability. According to Sarvam AI, Bulbul-v2’s latency (0.398 seconds) outperforms ElevenLabs (0.945 seconds), making it faster for real-time applications. Its pricing, tailored for the Indian market, also gives it an edge over pricier competitors.
However, global models may still lead in areas like voice variety or integration with international platforms. Bulbul-v2’s focus on India-specific needs makes it a niche but powerful player, especially for businesses operating locally. As Sarvam AI continues to innovate, future updates could further close the gap with global leaders.
Bulbul-v2’s Role in India’s AI Ecosystem
India’s AI landscape is evolving rapidly, driven by initiatives like the [IndiaAI mission www.sarvam.ai], which aims to build indigenous AI capabilities. Sarvam AI’s selection as the first startup to develop India’s sovereign LLM highlights its leadership in this space. Bulbul-v2 aligns with this mission by addressing a critical need: accessible, culturally relevant voice technology.
In rural India, where literacy rates can be as low as 60% in some areas, voice-based tools are transforming access to information. Bulbul-v2 could power apps that read news in Odia, provide health advice in Telugu, or teach math in Malayalam, making technology inclusive for millions. Its low-cost API access also encourages developers to integrate it into innovative solutions, from WhatsApp bots to educational platforms.
Why Bulbul-v2 Matters Globally
Bulbul-v2’s launch isn’t just a win for India—it’s a signal to the global AI community. By focusing on linguistic diversity, Sarvam AI is setting a precedent for region-specific AI solutions. Other countries with diverse languages, like Nigeria or Indonesia, could draw inspiration from Bulbul-v2 to develop their own TTS models. The model’s success could also attract international investors to India’s AI sector, boosting innovation.
Sarvam AI’s emphasis on open-source contributions, as noted on their [IndiaAI mission www.sarvam.ai], further amplifies its global impact. By sharing tools like Shuka v1 and Sarvam-2b, the company fosters collaboration, potentially influencing TTS development worldwide.
Tips for Getting Started with Bulbul-v2
Ready to explore Bulbul-v2? Here are some tips for businesses and developers:
- Test the API: Access Bulbul-v2’s API via Sarvam AI’s [developer portal](www.docs.sarvam.ai/api-reference-docs/text-to-speech/models/bulbul) to experiment with voice settings.
- Customize for Your Brand: Create a unique voice that reflects your brand’s personality, like a warm tone for a hospitality app.
- Optimize for Code-Mixing: Use Bulbul-v2’s code-mixed text support to cater to bilingual users, common in urban India.
- Start Small: Begin with a single language and scale up as you refine your application.
Want more AI insights? Check out our post on Top AI Innovations to Watch in 2025 for other cutting-edge tools.
Final Thoughts
Sarvam AI’s Bulbul-v2 is a bold step toward making AI speak India’s languages with authenticity and heart. By supporting 11 languages with natural, customizable voices, it’s breaking barriers in a country where diversity is both a strength and a challenge. From empowering businesses to enhancing accessibility, Bulbul-v2 is more than a TTS model—it’s a voice for India’s future. As Sarvam AI leads the charge in India’s AI revolution, Bulbul-v2 could inspire a new wave of inclusive technology worldwide. Have you tried Bulbul-v2 yet? Share your thoughts in the comments!
