Which AI Coding Tool?
Claude Code, Codex, Gemini CLI, Cursor, Grok, Kimi — what each is actually good at, and how to choose without burning a month.
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⌘K — search the whole course: commands and glossary terms too.
Level 0. Picking a tool
The questions that actually decide it
Level 1. Head to head
The agents, compared on real work
More in this track: The tools
Frequently asked questions
Is "Which AI Coding Tool?" free?
Yes, the whole course is free — no ads, no paywall, no hidden charges. You can support the project if you want to, but it changes nothing about your access to the lessons.
Do I need to install anything or sign up?
No. Everything runs in your browser, and your progress is saved in this browser. To move it to another device, download a backup from settings.
Who is this course for?
Anyone choosing a tool. It builds up from the simplest possible starting point, so no prior experience is assumed.
How many lessons is it, and how long will it take?
5 lessons. Go at your own pace — one short lesson a day, or several in a sitting.
Is there a certificate?
Yes. Finish the course and pass the final exam, and you unlock a personalized certificate you can share.