The Complete OpenAI Codex Masterclass 2026 (GPT-6 Astra)

Our verdict: worth it — as long as the IT & Software skills on the syllabus match what you actually want to learn. The regular price for The Complete OpenAI Codex Masterclass 2026 (GPT-6 Astra) on Udemy is $149.99. With the coupon code on this page, that falls to $9.99 — a saving of $140.00, or 93% off the standard rate Spread across 11h 30m of on-demand video, that works out to roughly $0.87 per hour of content — cheaper than a single chapter of most printed IT & Software textbooks.

A cheap price means nothing if the material is thin — here the syllabus is organized around usable outcomes. Prof. Ryan Ahmed walks you through master Codex by OpenAI for building agentic AI workflows for everyday knowledge work and automation, master built-in Codex Skills & Plugins and build custom Codex skills and reusable workflows, and connect Codex with tools such as Gmail, Drive, Calendar, and Canva — skills meant to be used, not just watched. It has already been taken by 3,295 students and holds a 4.5-star average from verified reviews, which suggests the content holds up once learners actually apply it.

Check the prerequisites before you commit: No programming experience is required, the course is open to anyone with a laptop and internet connection!. Best suited to learners who already have footing in IT & Software. Plan for roughly 11h 30m of on-demand video at your own pace. Lessons are delivered in English.