Fintech Brief — August 24, 2026 Razorpay Launches Vulcan — India’s First AI Foundation Model for Payments Razorpay has launched Vulcan, a transformer-based AI foundation model built specifically for payments processing — not an LLM, but a purpose-built architecture that treats each payment as an unordered set of fields, tokenising even missing values. Trained on roughly 3 trillion data points from 4 billion transactions and weighing about 3,000 signals per transaction, Vulcan collapses routing, fraud detection, risk scoring and checkout personalisation into a single model. Built with NVIDIA and AWS, the model is already in beta across 51,000 businesses. Early results: 8–10% better payment success rates, 8x more international card fraud blocked, and 5x more fraudulent transactions caught without additional false-positive alerts. The approach diverges from Nubank’s nuFormer and Revolut’s PRAGMA — both sequence models optimised for card-heavy markets — because India’s payment landscape (UPI, cards, netbanking, COD) needs a set-based approach rather than sequential ordering. Telangana Today
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