There was a period of time Codex was better, they slowly cut it back by my estimate 3x a few months ago.

I've verified this with the heaviest users I know, I've run the numbers myself over and over.

I have too many max accounts on each to not know this. My Claude accounts typically are doing 2x the number of sessions, and every single week the Codex accounts run out faster even with all these resets. I can easily burn a full weeks usage in a half day, it's closer to 1.5 with CC.