Zero Codeswitch AI Decodes Hinglish, Unlocking Voice Technology for 1.4 Billion Indians
Unified AI architecture eliminates transcription errors in real-world Hinglish, promising equitable voice access and privacy.
January 19, 2026

The unveiling of the Zero Codeswitch foundation model by Shunya Labs marks a pivotal advancement in the development of artificial intelligence tailored for the unique linguistic landscape of India, challenging the dominance of Western-centric AI systems. The model is specifically engineered to natively process and accurately transcribe what the company describes as the "real-world" speech of over a billion Indians, which is characterized by the fluid, frequent blending of Hindi, English, and various regional languages within a single utterance—a phenomenon known as code-switching. Traditional Automatic Speech Recognition systems, often developed with monolingual data, struggle immensely with this linguistic complexity, resulting in high error rates and rendering voice-first technologies unreliable for the vast majority of the Indian populace. Shunya Labs’ breakthrough directly addresses this foundational flaw, aiming to make digital access truly voice-enabled and equitable across the country's diverse demographics.
The technical innovation behind Zero Codeswitch lies in its move away from the segregated language processing architecture of conventional AI. Historically, ASR models treat languages like Hindi and English as entirely separate entities, forcing transcription into one language or the other and leading to systemic failures when a speaker switches mid-sentence. Shunya Labs' solution employs a unified architecture capable of generating mixed Hindi and English tokens within the same transcription output, thus reflecting the seamless code-switching inherent in daily Indian conversation. This native processing capability eliminates the need for complex, error-prone intermediate translation or language detection layers. The foundation model, built upon a base like OpenAI’s Whisper Medium and extensively post-trained by Shunya Labs on code-switched speech, has demonstrated a significantly higher accuracy rate on real-world Hinglish speech. This core technology has positioned Shunya Labs to assert that its overall ASR platform, which supports over thirty-two Indic languages including Marathi, Assamese, and Maithili, can outperform models from major global technology firms on key metrics like multilingual fluency and accuracy.[1][2][3][4]
The commercial and strategic implications of Zero Codeswitch are significant, particularly for high-volume, mission-critical enterprise applications across India. The model's immediate use cases are extensive, spanning the transcription of Hinglish conversations, powering customer support and conversational agents, and providing accurate transcription for workplace meetings and media content creation. Beyond its linguistic capabilities, the model is architected for privacy-first, decentralized deployment, a critical feature for sectors handling sensitive data. It is explicitly designed for enterprise and public-sector use cases where data privacy is paramount, supporting deployment on-premises or in air-gapped environments, thereby allowing organizations to train domain-specific variants while maintaining full control over their data. This focus on privacy is coupled with an emphasis on cost-efficiency and accessibility. Shunya Labs has engineered the platform to support CPU-first deployments, reducing the dependency on specialized and expensive GPU infrastructure and, according to company claims, cutting enterprise cloud expenses by a factor of up to twenty. This optimization also enables edge deployment, facilitating offline functionality and faster inference times crucial for remote or sensitive environments like rural telehealth kiosks or defense applications. The claimed low average Word Error Rate of 3.37% represents a potential leap in performance compared to the 17% to over 25% WER averages often cited for other models on various Indic language benchmarks.[5][2][3][6][4][7]
The launch of the model is indicative of a broader, consequential shift in India's AI ecosystem, moving past English-first systems to create context-aware solutions. The prevalence of code-switching, a natural result of the country's profound linguistic diversity with twenty-two scheduled languages and hundreds of dialects, presents a formidable technical challenge that local innovators are now tackling with first-principles approaches. Shunya Labs itself emerged from an unexpected source: it is a deep-tech spinout from United We Care, an AI-driven mental health startup. The underlying technology was originally honed to power an empathetic AI wellness coach, Stella. This origin story suggests that the initial training focused on deciphering the subtleties and emotional nuances of complex human conversations, which may have inadvertently granted the ASR system a superior ability to handle the fluidity and non-standardization of everyday language. The foundational work included pioneering a Clinical Knowledge Graph with over 230 million nodes and developing a Spatio-Temporal Graph Attention Network, underscoring the sophisticated research backing the commercial applications.[3][6][4][7][8] This innovation aligns with national initiatives like the IndiaAI Mission and the Bhashini project, which seek to build large, multilingual systems grounded in Indian data and use-cases, particularly for citizen services and digital public infrastructure. The development of domestic intellectual property to address uniquely Indian technological problems is critical for ensuring that the benefits of AI are accessible to all segments of the population.[5][8]
In conclusion, the debut of Zero Codeswitch is more than a mere product launch; it is a significant step toward democratizing AI voice technology across a linguistically complex nation. By developing an AI model that listens to and understands how 1.4 billion people actually speak—seamlessly blending Hindi, English, and regional words—Shunya Labs has created an essential infrastructural layer for India’s digital future. The combination of cutting-edge code-switching accuracy, expansive Indic language support, and a firm commitment to privacy and cost-effective on-premise deployment positions the technology to be a catalyst for a new wave of voice-first digital transformation, ranging from large-scale contact centers to rural government services. The model’s success will be a key indicator of how far homegrown Indian AI innovation can go in solving the world’s most challenging linguistic diversity problems, ensuring that technology serves as an enabler rather than a barrier to digital access.