Smallest.ai raises $8Mn in seed round from Sierra Ventures

Artificial intelligence (AI) startup smallest.ai has raised $8 million (around INR 70.9 Cr) in its seed funding round led by Sierra Ventures.

The round also saw participation from Schema Ventures, DeVC, peercheque, Mission Street Capital, 3one4 Capital, Better Capital, Upsparks Capital, Boris Wertz (founder, Version One Ventures), Raveen Sastry (founding partner, Multiply Ventures), Shyamal Hitesh Anadkat (applied AI, OpenAI), among others.

The startup plans to use the fresh capital to build the foundation for its enterprise voice AI platform.

Read also- Reia Diamonds raises Rs 2 crore in pre-seed round

“Enterprises need voice agents that do not break. They connect to the systems of record, CRMs and come with guarantees around accuracy and compliance. Getting there requires a deep understanding of enterprise context and building it into a voice interface that just works. smallest.ai is here to do just that,” smallest.ai CEO and cofounder Sudarshan Kamath said. 

About Smallest.ai 

Founded in 2023 by Sudarshan Kamath and Akshat Mandloi, smallest.ai develops hyper-realistic voice agents and high-quality text-to-speech (TTS) models for diverse applications. It claims to generate 10 seconds of speech in just 100 milliseconds, enabling ultra-realistic voicebots with sub-second responsiveness.

The startup offers two main products: Waves, an AI voice platform for TTS, voice cloning, and conversion, and Atoms, a real-time AI voice agent platform that integrates with business systems for tasks like customer support and lead qualification.

According to Kamath, smallest.ai’s agents already handle over 1 million calls for large enterprises across sectors including debt collection, real estate, e-commerce and logistics. Serving over 5,000 SMBs and enterprises in India and the US, the platform supports English, Hindi and 30+ languages, making AI-driven voice experiences scalable, efficient and cost-effective.

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