I beg to differ, and so do a lot of other people. But if you're locked into this mindset, I can't help you.

Also, Codex isn't a model, so you don't even understand the basics.

And you spent "several hours" on it? I wish I could pick up useful skills by flailing around for a few hours. You'll need to put more effort into learning how to use CLI agents effectively.

Start with understanding what Codex is, what models it has available, and which one is the most recent and most capable for your usage.