I was a regular Claude Code user but Codex eventually won me over due to a few factors:

1. Less interaction required over long horizon tasks.

2. You actually get the amount of tokens they advertize. It's been an open secret on r/Claude that over the last several months, due to supposed "bugs" in Claude, users on the Max plan have seen over 50% of their tokens used on a single prompt. Super annoying.

3. Really strong image generation capabilities.

That's not to say OpenAI's current generosity will last, but for now I definitely see Codex as the stronger option between the two.