Your First Session with OpenAI Codex
Learn to use OpenAI Codex, the GPT-5 powered coding agent, for your first coding project. Build a markdown to HTML converter from the terminal.
What you'll learn
- Start and configure an OpenAI Codex session in your terminal
- Use Codex to build a practical utility script
- Iterate on prompts to refine code output
- Understand Codex's agentic capabilities and multi-tasking
- Complete and test a working project
Modules
4
Pages
14
Estimated Time
25 min
Course Modules
Starting Your First Session
Learn how to open OpenAI Codex and start your first coding session
6 min
3 pages
beginner
Basic Interactions
Learn how to interact with Codex through prompts, understand responses, and iterate on solutions
8 min
4 pages
beginner
Working with Code
Learn how Codex reads files, makes changes, and manages multiple files simultaneously
7 min
4 pages
beginner
Completing Your Session
Learn how to wrap up your Codex session, review your work, and save your progress
4 min
3 pages
beginner