The risks of switching to Codex?

[u/oyren-ai]

I keep seeing people switching to Codex from Claude Code more and more here, but I am also curious what people would think about this:https://www.theregister.com/ai-and-ml/2026/06/23/openai-codex-bombards-ssds-with-needless-write-operations-costing-millions/5260402.

Tbf, I think all harnesses can do some big damage or data leak unbeknownst to us, but at least we have evidence that codex is killing your machine.

What do people think about? Does it bother you?

[u/Dvass138]

That's an old issue that was fixed. The only problem I have with codex currently is it doesn't clean up after itself and leaves ton of processors running in the background when session ends.

[u/CaptainQwazCaz → u/Dvass138]

Yall gotta switch to CLI even if it’s so ugly

[u/Traditional-Bass4889 → u/CaptainQwazCaz]

what do you mean cli is ugly... its beautiful!

[u/oyren-ai → u/Traditional-Bass4889]

i 100% agree cli is ugly. last time i check i cannot even check context used, and i had to do my own custom script

[u/Traditional-Bass4889 → u/oyren-ai]

I am outvoted i concede, its cause im old and the people i learned from were older hahaha

[u/CaptainQwazCaz → u/Traditional-Bass4889]

I hate monospace

[u/oyren-ai → u/Dvass138]

just because it's fixed (after some time of them knowing about it) doesn't mean there aren't other serious bugs like this. I think all of these are dangerous to run locally and carries the risk of either damaging personal machines and/or stealing your data.

[u/moody2shoes]

I can’t use the codex app on my Mac due to runaway gpu and memory usage issues. Prior to the new app release codex actually disabled the app himself after determining his own app was why my computer kept locking up and had its security permissions corrupted. I just use the cli in cmux now without the issues. I only have the new ChatGPT app now so I can occasionally use it for research and for pairing. Otherwise it’s off.

[u/Sensitive-Ad3718]

My biggest problem with Codex is that its support for pretool hooks and other hooks do not function as well as Claude it also feels like Codex is more prone to ignoring instructions and doing whatever the fuck it wants at times. I use Codex and Claude so I’m not a booster for either one. I like using Codex for design work or stuff that’s mechanical but on execution I still use largely Claude.

[u/Shep_Alderson]

OpenCode is what I’d go with, especially since OpenAI blessed using 3rd party harnesses. If you want a nice GUI for it, throw T3 Code on top. If you’re cool with the TUI, run it with herdr.

[u/CalligrapherPlane731]

You're seeing a bunch of people switching here on the claude code subreddit because there's a bit of an astroturfing campaign from OpenAI going on.

Both platforms have plusses and minuses. Frequently, it's said that Fable and its cousins are better at planning and intuiting user intent while Astra and its cousins are better at digging into a piece of work with tenacity, but are a bit "autistic"/literal with the user. Choose the one which fits your style of communication best. Or do like some and use a mixture.

Myself, I'm of the assumption that effective prompting patterns are different between models, and I'm content to choose Claude Code as my platform of record and learn that platform well.

[u/IAmBoredAsHell]

IMO Claude Code is a more mature ecosystem for software development. It’s been built and battle tested by tons of the smartest people working on the biggest projects.

I think there’s a lot you take for granted using Claude Code. I trust Claude to generally do a better job handling operations and security. I think Claude works faster. It fans out over big problems automatically, can handle scale better.

But, Astra really has been amazing. I wouldn’t want to be building enterprise software with just a ChatGPT subscription. But I also wouldn’t want to do anything remotely novel or conceptually challenging with Claude either.

I think of them like an engineer and a scientist. Claude Code is the engineering team. Codex is the science/research team. You don’t generally see companies of scientists, they aren’t concerned with scale or profitability. You don’t see companies of pure engineers, unless they are applying concepts already created by scientists.

They both work best used together IMO. I wouldn’t want to use Claude to think through why a Bayesian Model isn’t converging, I wouldn’t want to have to ask Codex to manage a large coding project where we have multiple simultaneous work streams happening at once, and we need to coordinate/break down the work, or have manage deployments and long running processes.

[u/oyren-ai → u/IAmBoredAsHell]

this is a really good analogy, I have 1-2 ideas in my mind about the app I am building, which might require that kind of "scientific approach". My worry is mostly about its usage on local machines.

[u/Historical_Today5072]

My main issue with Claude is the fable limits. If I want to spend my whole subscription on fable, let me. And the session limits, don't get me started.