AI coding agents are transforming the software development process by shifting the focus from code generation to planning, reviewing, deploying, and coordinating. This change is fostering the rise of advanced systems that function within defined environments, reason over extended periods, and integrate with tools like IDEs, version control systems, and issue trackers.
OpenAI is leading in AI research and product innovation. In 2025, it launched Codex, an AI coding system meant to operate safely in sandboxed settings while interacting with the current software development stack.
Thibault Sottiaux, the Codex engineering lead, and Ed Bayes, the Codex product designer, joined Kevin Ball to discuss Codex’s development, the evolution of models, the prospects of multi-agent systems, Codex’s open-source CLI, model specialization, and performance considerations.
Kevin Ball, also known as KBall, is Mento’s vice president of engineering and an independent coach for engineers. He co-founded and served as CTO for two startups, established the San Diego JavaScript meetup, and organizes the AI in Action discussion group through Latent Space.
Please click here to see the transcript of this episode.
Sponsors
When issues arise in production, do you identify the cause quickly? AppSignal offers application performance monitoring for clean insights without high costs, providing tools like error tracking, performance monitoring, and log management for teams using Ruby on Rails, Elixir, Node.js, and Python. Try it free for 30 days and get 10% off with SED10 at www.appsignal.com/sed.
If you’re a developer aiming for innovation but facing bottlenecks and legacy code issues, MongoDB is here to assist. It’s a flexible platform built for developers, compliant with ACID, ready for enterprise, and ideal for AI apps, trusted by many Fortune 500 companies. Start building at mongodb.com/build.
In mobile app security, “good enough” isn’t sufficient. Guardsquare applies advanced code hardening and security testing, with real-time threat monitoring, to secure your Android and iOS apps effectively. Learn more about Guardsquare at www.Guardsquare.com.