Codex Full Tutorial 2026: From Beginner to Real-World Workflows
Codex is more than an AI coding assistant. It can plan tasks, use tools, execute work, and keep going until the job is finished.
In this video, I’ll walk you through the Codex interface, show you how to create a project, use Plan Mode and Goal Mode, install useful plugins, configure permissions, and personalize the way Codex works.
You’ll also see how to continue an active Codex task from your phone, check progress remotely, approve actions, answer follow-up questions, and redirect the task while your computer keeps working in the background.
I’ll also show you how I used Codex with Remotion and Hyperframe to create code-based animations with precise control over fonts, colors, layouts, and transitions.
Finally, I’ll share a practical tip for managing Codex’s rolling usage window, along with examples of scheduled tasks and automated daily briefings.
Whether you’re a developer, creator, founder, or just getting started with AI agents, this video will help you understand how to use Codex in real workflows.
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