From rolling out OpenAI’s GPT-4 to employees to preventing $27 billion in fraud, Visa exec Rajat Taneja opens up about the payments giant’s AI playbook

The company has licensed a private version of GPT-4 that runs on Microsoft Azure and incorporates Visa’s internal data. The payments company has opened the tool to 13,000 employees since February with guidelines on using it and the underlying data. It aims to roll it out to the rest of its workforce by year-end.