Inside OpenAI’s Codex With Andrew Ambrosino
Aug 31, 2026 · 45m
Summary
Andrew Amrosino from OpenAI joins App Stories to discuss the evolution of Codex into a unified ChatGPT desktop app. He explains the shift from terminal-based agents to a GUI-first approach, emphasizing trust mechanisms for computer use and the company's bottom-up innovation culture. Amrosino also addresses the technical trade-offs of using web technologies for cross-platform consistency while promising deeper macOS integrations.
Topics discussed
Introduction and guest Andrew Amrosino from OpenAI
History of Codex: From CLI agent to standalone app
Designing the Codex app interface and user experience
Why not build an IDE? The middle-ground approach
Fluid surfaces and the evolution of coding agents
Integration of Computer Use and Computer History
Sponsor segment: Finalist 4 planner app
Building trust with agents: Cursors and transparency
Native Mac app vs. Web technologies debate
The 'Super App' concept: Unifying Chat, Work, and Codex
OpenAI's internal culture: Everyone builds everything
Product leadership, taste, and avoiding feature slop
Testing, metrics, and agent-first experiences
Future of Codex: Local files and ecosystem integration
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