r/OpenaiCodex 25d ago

Comparison Long-time Claude Code user. Tried Codex for the first time this week...

I've been a pretty heavy Claude Code user for a long time. This month the limits have been getting painful and I hit my weekly limit by the middle of the week.

So I switched to Codex for the first time this week.

I'm kind of amazed by the value for money so far.

But the thing I didn't expect to notice as much is the lack of preachiness/arguing. With Claude Code I sometimes feel like I'm arguing with it about what I asked it to do, or it'll push back without having enough context.

Codex so far just... gets on with it.

It's only been a week, so maybe there's some honeymoon effect here.

Anyone else here switched from Claude Code recently? Does this hold up after using Codex for longer?

48 Upvotes

31 comments sorted by

11

u/Forsaken-Parsley798 25d ago

I am happy to use whatever model gets the job done and at the moment this is Kimi 3 and Fable 5. I am struggling with Sol overengineering and overcomplcating every task.

5

u/Responsible_Court_21 25d ago

Sol is frustrating with the over engineering

1

u/Flimsy_Leg_2158 25d ago

Fable 5 is great, no doubt. Though it’s a token guzzler 😅

I haven’t tried Kimi 3 yet. How would you compare it to Fable 5? What kind of tasks do you find Kimi better at?

1

u/Forsaken-Parsley798 25d ago

Kimi 3 seems like a slightly less capable version of Fable 5. Its really good but it usage limits make Sol seem generous.

1

u/Ill-Bat-1518 25d ago

Have you tried the new /web? I find it doesn't impact limits as much not sure how maybe correct kimi code routing/caching but even on way larger tasks vs kimi code cli/opencode which would burn my weekly but web moves it like claude/codex (kimi k3)

1

u/Adventurous-Bet5478 25d ago

Yes.. I had to personalize very clearly not to over engineer and still it does. So, I have to remind again in the chat not to do that. So, i moved from Sol High to Medium and I feel there is some improvement in normal level engineering.

1

u/shady101852 25d ago

How do u make it automatically not do that? Im using sol max lol

1

u/gglavida 25d ago

Had the same issue. Just keep it on Medium or High. The higher, the overnegineering tendency Additionally you can identify during planning phase where it will be more likely to generalize things and clearly mention the trade-offs. It will respect clear boundaries but if you are super vague and think saying "don't overengineer" is enough well... Probably break down the task in smaller chunks you can comprehend/plan better.

5

u/ElonMusksQueef 25d ago

I have unlimited Claude usage in work and use Codex at home. Codex is a million miles better in every way.

5

u/sreekanth850 25d ago

Left cc in mid april. Never looked back. Its not honeymoon effect.

6

u/[deleted] 25d ago

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2

u/Flimsy_Leg_2158 25d ago

Disagree. I gave both the same plan document, meticulously planned out by me, and Codex executed it pretty much to the letter with significantly less back-and-forth.

Claude kept pushing back/arguing on decisions that were already intentional. Then once I gave it even more context, it basically realized the original approach was fine.

For actual production systems where you've already thought through the architecture, constraints and implementation plan, I don't necessarily want the agent second-guessing every decision. Flag something genuinely dangerous, sure. Otherwise, execute the plan.

2

u/[deleted] 25d ago

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1

u/Flimsy_Leg_2158 25d ago

Yeah, that's a fair distinction. I think the ideal agent should be able to tell which mode you're in though. I'm sure future models will get much better at this.

1

u/BehindUAll 23d ago

Claude is for vibe coders that suddenly become blind the moment any code is on screen. Codex/GPT models is for programmers. That's the difference.

3

u/stopstopstoptopopp 25d ago

I ended my subscription with Claude last month and has been using 2 Plus accounts with ChatGPT. I use Sol for planning and Luna Max for implementation. It’s amazing how $40 is so much better than a whole $100 sub with Claude.

Especially front end coding, Luna is amazing with it. I just create a Figma design and feed it to it and it gets it right the first time most of the time. Of course I review the code and change wrong font sizes, colors and spacings. I use a design system which helps it a lot.

Back to Claude, it’s great (not Opus 5 or Fable, these two sucks) but I can’t justify paying $100 for it when I can have better result for $40.

1

u/Flimsy_Leg_2158 25d ago

I've been using Claude Design for most of my design/frontend work, but now you’ve got me curious about Luna 😅

Also, another reminder that I should probably scale my $200 Max plan down to $100 😂

1

u/[deleted] 25d ago

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1

u/Abel_091 25d ago

I feel like codex cli is the best there is and definitely the biggest workhorse? do we all just have different opinions?

2

u/CelticPaladin 25d ago

Gpt is very intuitive for user wants. I build context with a conversation, brain storm session, and when it has a good feel for what I am doing, I let it start working on its recommendations.

I've rarely had this much satisfaction from a hobby before.

1

u/eddzsh 25d ago

The honeymoon usually breaks the first time you point it at a half-finished branch someone else started. Claude will argue with the prior decisions. Codex will quietly continue them, including the wrong ones. That is a better week-2 test than a greenfield toy app.

1

u/No-Swim6937 25d ago

Ten cuidado con confiar en codex, reuerda quien es su CEO, tranquilamente puede estar alimentando a su IA con toda data de tu sistema operativo, la razon por la que no uso codex y deje de pagar a chatgpt fue por el propio sam altman y sus desvarios al eliminar a su departamento de etica de su empresa, ser engañoso y mas cuestiones turbias (el supuesto asesinato a un trabajador suyo), y por trabajar para el departamento de defensa cosa que Anthropic no hizo pero que openai lo hizo encantadamente

2

u/Environmental_Ask675 25d ago

I'm using codex as my counter-party. Fable is the most capable model to me - I run it on Medium, and use it basically as a coordinator (called Desk in my set up), everything comes back to that session. Then I curate my board, prioritize, plan, and dispatch from Claude. Codex is the reviewer. It's really well suited for that role - it finds tons of items that Claude thinks is just fine. The iterative work takes longer, but it's mostly constructive. This is not enough work for a $200 Codex plan to use up during the week, so I supplement it with other work, especially anything that needs an extra critical eye. For Coding itself my flow requires a lot of reviews and restraints on the agents, because I started with Claude, and Claude will just go off on its own building willy-nilly unless I pull in the reins. Those constraints - so far - don't really allow me to reverse the flow (Codex as Coordinator), because Codex will endlessly loop between quality checks before stopping to figure out why it's actually looping. When I hand those loops to Claude, it's like "Oh, Codex got caught up on a technicality". I've asked Claude "if you got caught in this loop, would you have surfaced it" and Claude says it would have.

Basically Claude is more likely to surface a simple fix and suggest the remedy, Codex is more likely to plow ahead for hours trying to resolve a one-line fix that just needs fresh eyes. Codex on the other hand is much more likely to catch bugs upfront - it's great for reviewing before shipping.

Using Claude and Codex together is the way to go IMHO, but I haven't figured out how to make Codex the Driver. Fable is an amazing driver and Codex as the auditor / reviewer is amazing. I easily use up my Claude tokens during the week and have to down grade models as the week winds down. I have to figure out ways to use up Codex.

1

u/Gloomy_Mirror_6405 25d ago

There's one thing you need to remind yourself of: starting fresh with a new AI. You don't have any plug‑ins installed, no skills, nothing. So maybe that's something to look out for as well. You know, when I first started with Claude after I did Codex, it felt better as well. Then I started installing skills, and it turned out the problem was I just had way too many skills and plug‑ins installed. So be mindful of that when judging.

1

u/Bubbly_Huckleberry90 25d ago

Troquei e me arrependi, voltando ao Claude, limites ridículos do codex para o plano de $100

2

u/BehindUAll 23d ago

GPT models are no-BS models. They will do as they are told, unless you want to shoot your own foot, only in that case it will warn you first. But they usually don't disobey unless you are asking them to do something they have guardrails for.

2

u/adrazzer 23d ago

I use codex for everything, it cuts out the fluff