Free Codex Course

Build ambitious, modern frontend interfaces faster with OpenAI Codex.

Free Codex Course
Watch Course

Why Take This Course?

Frontend Development has Changed with Agentic Coding

Set up Codex for Frontend Work

Choose the right model and reasoning effort, then give Codex the project context, plugins, skills, and browser tools it needs with a robust Agents.md file.

Build, Inspect, Steer, & Verify

Give Codex visual direction to build ambitious UIs while staying in control with goal setting, explicit UI tests, and iterative feedback loops.

Work Faster with Skills, Plugins, & Automations

Turn your team's frontend workflows into repeatable skills that produce components and features on demand and with consistent, predictable results.

Deploy to ChatGPT Sites

Share your UIs with the world by seamlessly deploying projects to ChatGPT Sites directly from Codex.

What You'll Learn

Practical workflows for quickly moving from idea to application

22
Lessons
3.4
Hours
Certificate of Completion
Learn at Your Own Pace

Direct Codex throughout your entire frontend development workflow as you plan, build, and iterate on new and innovative UI experiences.

  • Give Codex what it needs to work fast and efficiently with a well-structured Agents.md, the proper model and effort levels, and strategies for context management.
  • Iterate less by providing visual feedback through App Shots, annotations, and explicit skill references.
  • Set goals and clear prompts for the desired outcome to steer Codex toward a testing strategy that ensures a high-level of quality.
  • Innovate with "Living Frontends" that go beyond static screenshots and provide fresh visualizations for complex topics and documentation.
  • Deploy directly from Codex to ChatGPT Sites to ship a finished product you can share with the world.
Get Started with Agentic Frontend Dev with Codex
Instructor Katia Gil Guzman
Katia Gil Guzman OpenAI

Your (Awesome) Instructor

Katia Gil Guzman is a Developer Experience Engineer at OpenAI, where she helps developers build with OpenAI’s latest models, tools, and agentic workflows.

A Career Immersed in AI and ML

Katia has been working in AI since before it was cool. She started her career working at Microsoft on the Azure Cognitive Services team, founded an AI-focused SaaS start up, and is now with OpenAI working on the bleeding edge of agentic developer tooling.

Developer Experience Team

Focused on developer experience and helping developers build on the OpenAI platform

Software Engineer

Member of the Azure Cognitive Services team working on data & AI applications

Solution Architect

Architecting payment capabilities and services for Stripe's Platforms Team.

Prerequisite: Knowledge of prompting and basic software development experience.
Introduction
5 minutes
Codex Overview
31 minutes
Building with Sites
50 minutes
3D, Animation & Interactions
41 minutes
Existing Codebases
23 minutes
Living Frontends
47 minutes
Wrapping Up
4 minutes
3 hours, 24 minutes
Get Started with Agentic Frontend Dev with Codex
Master.dev course player

Best in Class Course Player

Your Learning Adventure Begins Here

  • Course Progress: Learn at your own pace and pick up right where you left off.
  • Robust Note-Taking: Take notes alongside transcripts to easily reference information while learning.
  • Quizzes & Flashcards: Reinforce your learning with quizzes and flashcards after every lesson.

Earn a Completion Certificate

After completing this course, you'll receive a certificate of completion that serves as proof of your achievement, showcasing your expertise, and commitment to professional development. You can easily share this certificate on your LinkedIn profile to highlight your new skills and demonstrate continuous learning to potential employers and professional connections.

Sample completion certificate