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Talk · 29m · OpenAI DevDay 2025

Shipping with Codex

Thibault Sottiaux, Nacho Soto, Aaron Friel and Daniel Edrisian · on OpenAI

OpenAI engineers show how they use Codex day to day, from pairing in the terminal to handing off long jobs.

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What you'll take away

  • Pair in the IDE or terminal for small changes, delegate bigger ones to the cloud
  • Write a plans.md that the agent keeps updated as a living spec for long tasks
  • Iterate on UI by having Codex check its own screenshots
  • Use Codex for automatic code review on pull requests

Mentioned in the talk

CodexAgentic codingCode review

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