Coinbase CTO: The Strategy to Achieve 99% AI Written Code
Sep 24, 2026 · 1:02:52
Coinbase CTO Rob Witoff says agents now write 98-99% of Coinbase's code, with engineers supervising 3-10 agents each and producing 100x the code of a year ago. He explains how engineers moved from writing code by hand to supervising agents and loops through Coinbase's internal CB agent platform and 'Coinbase brain.' His custom 'spicy feedback' agent sends every employee a Friday 9 a.m. assessment of their Slack and meetings, built on GPT-5.6 and Claude 4.8+, giving bigger productivity gains than models in product development. He also details custom compliance and security models trained on 13 years of Coinbase data and stablecoins as the killer rail for agent-to-agent payments. The episode also covers prediction markets, Coinbase's everything exchange, and flattening management layers.
