Working with Codex

Source: OpenAI Date: 2026-04-23 URL: https://openai.com/academy/working-with-codex

Summary

OpenAI Academy module on working with Codex — a practical guide for developers on integrating Codex into coding workflows, covering repository-level tasks, code generation patterns, debugging workflows, and using Codex as a coding agent via the API. Published the same day as GPT-5.5’s launch and the Codex Automations module.

Implications

Platform/developer thread. A “Working with Codex” Academy module targets developers who need structured onboarding rather than just API docs. The April 2026 timing aligns with Codex being positioned as the primary developer-facing product (alongside GPT-5.5 as the general frontier model). The Academy format suggests OpenAI is investing in developer education as a retention strategy — developers who internalize Codex workflows are less likely to switch to Cursor/Aider alternatives built on competing models.