Abnormally high ram usage in mac app
What version of the Codex App are you using (From “About Codex” dialog)?
Version 26.415.40636 (1799)
What subscription do you have?
ChatGPT Plus
What platform is your computer?
Darwin 25.4.0 arm64 arm
What issue are you seeing?
While using the Codex app, ram usage (by the content renderer) reached our 12 GBs, I noticed that when the codex app seemingly restarted/refreshed and the UI became non-responsive (even the time of the chat stopped updating)
<img width="518" height="360" alt="Image" src="https://github.com/user-attachments/assets/79bbf2c0-2e42-4923-b658-26ac206b4e1b" />
What steps can reproduce the bug?
Session ID: 019da6df-0f3f-7941-932c-b42bf6f536da
Token limit usage:
5 hour usage limit: 78% left
Weekly usage limit: 29% left
Context windows: 162/258k (63%)
What is the expected behavior?
_No response_
Additional information
I waited around an hour, the usage was around 12 GBs all the time with CPU usage varying. After that, I killed the content renderer from activity monitor. App refreshed/restarted (same as before) and task had completed successfully.
13 Comments
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was it both high ram and high cpu presist even launch/reopen the app?
that might half similar to #18463, just render proc no high ram like urs. but i did saw codex app use 29gb before i hit oom
wait, but first time ever i observed this
<img width="343" height="134" alt="Image" src="https://github.com/user-attachments/assets/a8de786a-5ad8-454e-b83d-19496302ee56" />
indeed it use lot ram then usage now. codex app Version 26.417.41555 (1858)
I often get a MacOS system dialog popping up saying my system has run out of RAM. That's usually when Codex gets to about 20GB of RAM usage.
@matthabermehl was cpu usage high too?
@happyf-weallareeuropean It was high, but I do not remember exact numbers (around 80% or so). My laptop fans were pretty loud (I have a Macbook Pro M5, it takes heavy usage to push it to this fan noise level).
@lauorbit mine today cpu really chill, but ram bulk at 1.6gb+
at least my macbook dont like macmini need to always plug in. just not sure what next moment it gone back. it looks like it have one more hidden trigger or what.
I’m seeing a similar Renderer memory/performance issue on Codex Desktop for macOS.
Setup:
What I observed:
Remaining issue:
Current workaround:
Happy to provide logs or a /feedback session ID if useful.
I got a pop up from mac that my system was running low on memory and I need to close some apps. The window showed ChatGpt app using 36GB of memory. I wish i had taken a screenshot.
I was able to take a screenshot this time.
<img width="796" height="942" alt="Image" src="https://github.com/user-attachments/assets/2757e906-548d-4742-a86d-a2645bfd8889" />
same..
What's going on here? This has been an issue for at least 6 months. On my computer, when ChatGPT is open it steadily eats memory until restarted (right now it's at 26.5 GB!). On two occasions I've woken up my computer in the morning to find it completely hung, with ChatGPT at over 100 GB and the system kernel panicked and requiring a hard restart.
For now I'm adding ChatGPT to Quitter, but this seems like a good opportunity to try out Claude.
For me this happens everytime I use the @ function to reference a file, every single time codex/chatgpt will balloon to about 60GB before cooling down again.