I think the author glosses over the real reason why tons of people use Codex over CC: limits. If you want to use CC properly you must use Opus 4.5 which is not even included in the Claude Pro plan. Meanwhile you can use Codex with gpt-5.2-codex on the ChatGPT Plus plan for some seriously long sessions.
Looks like Gemini plans have even more generous limits on the equivalently priced plans (Google AI Pro). I'd be interested in the experiences of people who used Google Antigravity/Gemini CLI/Gemini Code Assist for nontrivial tasks.
Heya, author here! I do agree with you that this is a big downside, but I don’t know if this is the primary reason.
In my experience teaching people, most people don’t actually know much at the time they make this decision. They’ve heard about Cursor, they’ve heard of Claude Code, and they may have heard about Codex. But what they’ve heard is anecdotes and marketing — they don’t yet have hands-on experience.
They make a big choice and then assume that this is how all AI works, because they don’t have a full breadth of context yet. And that’s to be expected! That’s how most things work.
That is why I teach the workshops I do to make AI accessible, so people can walk through the tradeoffs and make the best educated choices for them.
A couple of comments here have said that the post is subtly pro-Codex, but I tried to make my point very explicit: people should try a lot of things and see what works best for them. But it’s very hard to do that without investing a lot of time because the market is so nascent and moving so fast. This post exists to try and nudge people into exploring more of the tools they haven’t tried yet, so they can make their own informed decisions like you have. :)
All that’s to say, people definitely hit limits with Claude Code (as I have done myself) — especially if they’re hesitant to upgrade to Claude Max because they haven’t gotten enough out of Claude Pro. But I think the real reason people make the choices they do starts earlier in the process, even before they get a lot of hands on experience with Claude Code or Codex.
Personally I bit the bullet and went with the Max plan for Claude Code. After tax it costs me ($108) less than I earn from one billable hour. I have been punishing it for the last two months, it defaults to Opus 4.5 and while I occasionally hit my session limit (it resets after an hour or so), I can't even scratch the surface of my monthly usage limit.
Thanks for the correction, looks like I misremembered. But limits are low enough with Sonnet that, I imagine you can barely do anything serious with Opus on the Pro plan.
Looks like Gemini plans have even more generous limits on the equivalently priced plans (Google AI Pro). I'd be interested in the experiences of people who used Google Antigravity/Gemini CLI/Gemini Code Assist for nontrivial tasks.