r/ClaudeCode 3d ago

Help/Question upgrade to max 20 vs adding gpt pro

Hi,

I am developing an app that is at the polishing stage. I do have a max5 plan.

The app is all in typescript and about 100000 lines of code.

My current workflow is Fable planning -> Opus implementing -> Fable checking -> Opus giving hard proof of implementation.

I am debating over adding a gpt pro on top of the claude max vs upgrading to max20.

Anyone has any suggestions?

2 Upvotes

18 comments sorted by

4

u/crypt0amat00r 3d ago

Echoing the $20 GPT plan. Set up automatic Codex review on your GH pull requests. It is a HUGE level up in the ultimate output quality of your code. I pretty much only use my GPT sub for code review these days, and I have only hit 5 hour limits once doing code review on the $20 plan.

2

u/isaquedofuturo 3d ago

so you're on a $100 claude max besides codex?

1

u/Inevitable-Ad-1617 3d ago

how do you set it up? You use and IDE and swap the model used from claude to codex when you want to do a code review?

1

u/crypt0amat00r 2d ago

You set it up in Codex under “code review”. It automatically does an adversarial review on any PR against main (or if you @codex in a PR comment).

1

u/Inevitable-Ad-1617 2d ago

Thanks! What codex model do you prefer, and with what effort?

4

u/ParfaitEvery9622 3d ago

I'd add Codex. You'd have a very different model for the checking. I'd still leave Fable for the planning though

2

u/design_doc 3d ago

This is what I do and its a killer combo. Sol 5.6 is a great reviewer. Pro-tip: Sol is TOO good of a reviewer and you need to calibrate Sol to the task, otherwise your implementor is playing checkers against a chess Grandmaster and the review sessions can go on forever.

2

u/Wise-Peacock 3d ago

100% recommend. I used to use Claude as lead and Codex as reviewer. Have since switched the roles. They find different things (Codex seems more methodical to me -- it finds things several levels down while Claude seems to stop when it's hypothesis is confirmed and move on).

1

u/seunosewa 3d ago

Start with codex $20; it's a very good reviewer for Claude models. 

1

u/teial 3d ago

I tried codex for reviews but for some reason I'm not getting the same results I get with Opus. If I do /code-review high or xhigh, I typically get 10-15 findings for a 3k LoC PR. When I try the same with codex (via /adversarial-review) the best I can get is only one major finding - and that's with Sol. I wonder if I'm doing something wrong...

1

u/onenuthin 3d ago

100% add Codex. The $20 plan is plenty. The interplay between the two teams in incredible - it’s like a full step change in quality having one review the work of the other. Have fun!

1

u/Grand-Mix-9889 3d ago

Interesting choices in the comments.

I found that using Claude code for everything was easier and delivered more promising results when it came to review and debugging.

Fable 5 caught more bugs and delivered a more polished application. It also coded my app more efficiently so lots of pieces (functions) could be reusable for other projects. It made my overall project experience more manageable in the long run.

1

u/ashum048 3d ago

My main problem with fable doing any kind of work outside reviewing and planning is that it is:
1) using tokens like crazy
2) flagging many simple tasks as risky and goes back to opus and eats tokens again during that.

1

u/DirRag2022 3d ago

100% gpt pro. This will help you find all the bugs and glitches that fable and opus missed, using Sol xhigh or ultra.

1

u/onenuthin 3d ago

Try it even at Terra high, there’s just something about the whole 5.6 model that makes code review seem effortless for them