Codex Crash Course

Codex is an AI-powered coding assistant from OpenAI that can write and review code across different environments.

In this course you’ll learn what Codex is and how the different parts of it fit together. We’ll look at Codex Cloud for running tasks from anywhere, the GitHub code review integration for automated PR feedback, the Codex CLI for working directly in the terminal, and the IDE extension for VS Code. You’ll also learn how these tools share context, how to switch between them depending on what you’re doing, and how to run multiple tasks in parallel.

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