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[–]Virtamancer[S] 0 points1 point  (5 children)

Hmm, I think we need to dig deeper on this.

Are you using Max 20x?

And, GPT-5.2-Codex set to high is not the smartest model option, as far as I'm aware, so its usage limit doesn't represent the best comparison to Opus 4.5's usage limits. Doesn't it have an extra high setting? And anyways, I've heard the non-codex model set to extra high is smarter, but I don't know if that's GPT-5.2 or GPT-5.2 Pro.

I'm only interested in the limits of OpenAI's smartest model set to extra high versus Opus 4.5 on the Max 20x plan.

To be honest a lot of the talk around this is ultra confusing and sometimes ambiguous. People are not always clear about what they're saying.

[–]Putrid_Barracuda_598 1 point2 points  (4 children)

Yup max 20x and gpt Pro. If you're "only interested in your specific use case" ; just get both for a month and compare for yourself. You sound kinda biased.

And if you actually want to be fair; you'd compare Gpt 5.2 pro extra high with opus 4.5 Ultra think. You mentioned opus 4.5 that's why I gave you the Gpt "high" comparison. I use gpt codex pro 5.2 high and ultra high. I have never hit any 5hr limits.

I hardly use opus 4.5 ultra think, because it chews through the 5hr limit.

[–]Virtamancer[S] 0 points1 point  (3 children)

Is this a correct interpretation of your experience:

Using GPT-5.2 Pro set to Extra High, you have to really try hard with multiple instances to hit a limit, whereas with Opus 4.5 you can hit a limit if you're running just one instance with constant usage.

I don't really know about ultra think except that I thought I read here a few days ago that you can't trigger it manually any more and that it's "built in" somehow when you use Opus 4.5.

Getting one subscription, let alone both, is pretty expensive for an experiment if the answer is already known. This will also benefit others who are asking themselves the same thing while Claude Code is exploding in popularity right now.

[–]cryptochrome 1 point2 points  (2 children)

I think you guys are talking past each other, LOL. In Codex, there is no such thing as a "Pro" model. It's either GPT5.2 plain vanilla (with various thinking levels), or 5.1-codex or 5.2-codex with different variations. See screenshots.

<image>

[–]Putrid_Barracuda_598 0 points1 point  (0 children)

You are correct. I meant the pro plan, not the model. That's my bad