It's a little more like App Store "gems" imo, with some clarity and honesty removed. Pay for "usage" that disappears arbitrarily: coded that bug fix for you, 3% usage consumed. Would you like to upgrade your plan to pro for "more" usage or max for "much more" usage? Buy pro max for "most" usage and access to our latest model, until we revoke it 15 minutes from now.

Yeah, it's a lot like that.

I've been running statistics on my local codex transcripts in order to try and figure out how many API credits are included in the subscription. So far my results are hovering around 3k credits for Plus and 15k credits for Pro 5x, which is aligned with what they advertise.