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

Master OpenAI Codex, Skills and Plugins to Build AI Applications, Automate Knowledge Work, and Deploy Autonomous Agents

Created by: Prof. Ryan Ahmed, PhD, MBA

Last updated September 2026

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What you will learn

  • 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.
  • Connect Codex with tools such as Gmail, Drive, Calendar, and Canva.
  • Create presentations, reports, dashboards, marketing assets, and business deliverables in Canva using Codex.
  • Design and orchestrate multi-agent systems and operate and control them from your phone for real-time delegation.
  • Build real-world applications, games, and AI-powered solutions with Codex.
  • Automate research and browser-based workflows. Analyze data and build forecasting models with Codex.
  • Write effective agent prompts & master “Meta Prompting” for high-quality AI outputs.
  • Master Codex Agents to automate tasks in finance, legal, marketing, data analysis, & research.

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Course Description

In this OpenAI Codex Masterclass, you will move beyond traditional AI chatbots and master the next generation of agentic AI workflows. You'll learn how to leverage Codex to perform research, browse the internet, generate images, build games, create presentations, build websites, analyze spreadsheets, and automate complex knowledge work using specialized AI agents. By moving beyond simple prompting, you will gain the skills to orchestrate AI systems that can execute entire projects with remarkable speed and efficiency.

This course provides a comprehensive hands-on experience designed for both technical and non-technical professionals. You will learn how to use Codex to automate tasks across business, finance, marketing, operations, and content creation while combining multiple AI agents to work together as a coordinated digital team. From creating branded logos and executive presentations to building dashboards, games, websites, and analytical reports, you will discover how to transform Codex into a powerful AI coworker capable of handling real-world professional workflows.

Throughout the course, you will master advanced prompting strategies, agent orchestration, browser-based research, image generation, and workflow automation techniques. You will learn how to create reusable skills and custom workflows that dramatically accelerate repetitive tasks and improve productivity. Whether you're analyzing financial data, preparing business presentations, building internal tools, or generating marketing assets, you'll learn how to turn AI into a fully integrated digital workforce.

By the end of this masterclass, you will be able to design and manage your own AI-powered workflows and deploy multi-agent systems for end-to-end project execution. Whether you are a startup founder pursuing the vision of a "one-person unicorn," a knowledge worker looking to automate digital labor, a creator seeking to scale content production, or a professional wanting to stay ahead in the AI economy, this course will provide the practical blueprints to do so. You will graduate with a portfolio of real-world projects and the skills needed to thrive in the emerging era of agentic AI.

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Instructor Details

Prof. Ryan Ahmed, PhD, MBA

I'm Dr. Ryan Ahmed, professor, engineer, and founder of Stemplicity, where we help people get past the hype and actually build things with AI, Agentic AI, Cloud, and Data Science.

Over the past 10 years, I've taught 1 million learners across 160 countries — 700,000+ enrolled in my Udemy courses, 260,000+ subscribers on the "Prof. Ryan Ahmed" YouTube channel, and 120,000+ on Coursera. I also run corporate AI training for teams at HSBC, RBC, Discover, and Barclays across the US, Canada, and the UK. I held leadership roles at GM, Samsung, and Stellantis in Canada and the U.S., working on electric and autonomous vehicle technologies.

I hold a MASc, PhD, and MBA from McMaster University. I’m also a licensed Professional Engineer and a Stanford-certified program manager with over 60+ published research papers in AI and battery systems.

But credentials are the least interesting part. Here's what I actually believe: "AI is the biggest opportunity of our lifetime", and most people are sitting it out because they think they need to code or have a PhD. You don't. If you're willing to show up and try, I'll help you get good at this.

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Reviews

4.5

251 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Hasib Ryan Rahman on 9/14/2026

The course teaches surface level stuff. Need some more in depth guidance

By Jan van Gameren on 9/8/2026

duidelijke en rustige uitleg. ik ben heel tevreden. Jan

By Daniel Rogowski on 9/8/2026

I didn't like the part where the presenter tried to compare a PowerPoint presentation with and without the Codex Skill. The one using the skill had *a lot of* visual artifacts and looked noticeably AI-generated, yet the presenter kept trying to convince us it looked better. The version without the skill barely had any misalignments at all. It’s not the end of the world, but I really dislike sugarcoating reality. If the skill made the presentation worse, that should have been addressed rather than pretending that Skills always improve the output.

By Akhil Daruru on 9/5/2026

explained everything properly, great learning for a non-coder like me.

By Mark Murphy on 8/28/2026

Presenter is excited about the topic and seems very well-informed.

By Dusmant Kumar Pati on 8/25/2026

like this... let's see how it unfolds further... looking forward to learn

By Ravindra Mehrotra on 8/20/2026

I love the course, it seems to be very useful

By Ricky Marchand on 8/4/2026

Just started but good so far and I've started other classes by Dr. Ahmed

By Javier Gazzarri on 7/17/2026

Clear, concise and engaging - great learning experience

By Bill G on 7/15/2026

Awesome content! Clear and concise delivery. Well organized and structured! I am already learning and I've only completed 2 videos!!!

Showing all 10 reviews on CourseDuck

Read all 251 reviews on Udemy

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Overall Score : 90 / 100