Brex’s AI Hail Mary — With CTO James Reggio

Brex CTO James Reggio discusses Brex's AI transformation, focusing on a three-pillar strategy: corporate AI adoption, operational cost reduction, and product AI features. Brex embraces hiring ex-founders, offering them opportunities to build AI applications with instant distribution to a vast customer base. The engineering team is structured around product domains, with a separate AI team focused on LLM applications. Reggio details Brex's agent platform architecture, including an LLM gateway and the use of Mastra, and an internally developed multi-agent framework for their consumer-grade Brex assistant. He also shares insights into internal AI adoption, the importance of code review rigor, and Brex's AI fluency levels framework for employees.