ChatGPT / Codex Edition
You Can Build Anything
Build apps and tools with ChatGPT and OpenAI's Codex CLI— without learning to code.
This edition covers OpenAI's coding stack — ChatGPT for thinking through what you want, and Codex CLI for building it. Setup, billing, the workflow loop, in one short read.
Buy the downloadable PDF guide. We include the audiobook at no extra charge.
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About the ChatGPT / Codex Edition
What is OpenAI's Codex CLI?
Codex CLI is OpenAI's command-line coding assistant, paired with ChatGPT for higher-level thinking. You describe what you want; Codex writes, edits, and runs the code. This edition covers both tools together.
Do I need a paid ChatGPT plan?
Codex CLI's pricing depends on usage tier. The book walks through which plan fits which kind of work, what an average session costs, and how to avoid surprise charges.
Does this work on Mac and Windows?
Both. The book covers setup for each platform.
Only need the model-specific chapters?
If you already own another edition, you can buy just the PDF for Chapters 3 and 4 for ChatGPT / Codex or any other model. We include the matching audiobook at no extra charge.