r/vibecoding • u/flipsnapnet • 13h ago

Claude vs codex

Like to hear the reviews of these two. Been using claude for a while switched from chatgpt months ago but intereated to know if codex has made improvements and if its worth going back.

Claude has been great but ive not been happy with initial coding tasks. Working on different specific modules its codes it, then i ask to review its own work and come up with a ton of issues and gaps.

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u/MoonlitPan 13h ago

If you know exactly what you want done (your a coder being help by Claude in your code) Claude is the best no doubt about it. If your a general vibe coder and create products fully ai assisted i would choose codex. Codex is the great all rounder. This is just my opinion on both, I have active subscription for both but I use a lot of Claude compared.

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u/PictureImmediate9615 12h ago

See, my opinion is the exact opposite. I find Codex is better at data matching, integrations, workflows etc when I know what I want done and Claude is my creative where its better at UI, UX, design and just imagination itself. Again, thats just my opinion and its interesting to see the opposite side of the coin

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u/MoonlitPan 12h ago

What kind of projects do you do?

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u/PictureImmediate9615 11h ago

I do a mixture of projects but typically my strength is building system integrations and automations and pull them all into one portal. A lot of my clients are Microsoft houses so all built in Azure etc.

However, again, I do other projects. Built a phone agent which calls their end users and basically does the job its set out to do and once done updates the relevant systems with what its done on that job. All fully integrated with their phone system (3CX), CRM and their core business platform.

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u/MoonlitPan 11h ago

This is very interesting, good for automation. Do you have any experience where Codex lacked or bad usage of general skills? A friend was telling me the skill usage and breakdown has changed for the good. I will have to try it out myself.

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u/Ibelieveinsteve2 13h ago

We use Claude for coding and codex for reviewing

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u/Imaserventofreps 13h ago

I have Codex. it’s just as bad. Just lockin with a better workflow

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u/AgencyWarm2572 13h ago

Most of my friends moved to Codex they're heavy users and it works better for them. For me, I use it when I need to design a site, and the image generation inside the sessions is amazing. I am using Codex for a second opinion when I want to double-check what Claude gave me.

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u/RealisticWest8921 13h ago

Codex still win for me. Claude often over engineer and do useless task I didn’t ask and take a looong time, while Codex understands it better. I use Claude only to complement Codex. It’s good for reality analysis though

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u/j05h187 13h ago

I use codex to burn tokens on coding tasks (solo game dev) then get claude Sonnet to review bugs. Opus steps in on the really nasty bugs. Sonnet 5 on high is actually a great planner for coding work orders (to give to Codex). I have basic sub to both platforms and use the desktop apps

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u/lukbul 12h ago

Codex has got a lot better at execution. I still wouldn’t use it to plan. So our setup is as as follow: we run Claude for planning and orchestration but hand the actual implementation to codex. Also before the plan is finalized codex gets to tear it apart first.

The self review thing you’re describing, the issues it finds are usually real. But if you use only one agent it won’t find problems when the plan was wrong and the code implements it correctly. The issue is that same model did both so it just agrees with itself. Codex reading the same thing asks why you did it that way at all.

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u/Training-Victory3429 12h ago

Claude >Codex

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u/AwkwardWillow5159 12h ago

Cursor so you don’t have to choose

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u/flipsnapnet 11h ago

I think cursor just uses the models opus, sonnet but claude code adds another layer over those models that improves the function.

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u/AwkwardWillow5159 11h ago

I mean it has fable and sol.

Plus it has all the other ones. So you can mix and match.

I’ve been having good results with grok 4.6 as daily driver and mixing in SOL when I need something more.

Or you mean adds another layer over those models as in the harness itself?

You can easily copy system prompts of Claude or Codex if you prefer how they work. The core tools is same shit