codex - 💡(How to fix) Fix GPU usage still high, battery killer [1 comments, 2 participants]

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openai/codex#20840Fetched 2026-05-04 05:09:38
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What version of the Codex App are you using (From “About Codex” dialog)?

Version 26.429.30905 (2345)

What subscription do you have?

Pro ($100)

What platform is your computer?

Darwin 25.4.0 arm64 arm

What issue are you seeing?

<img width="321" height="286" alt="Image" src="https://github.com/user-attachments/assets/34925b0b-1df1-4de5-8d39-72c564906639" /> <img width="237" height="339" alt="Image" src="https://github.com/user-attachments/assets/c519f6d1-f4f9-47c1-8604-5d17aa6abc5d" />

When I start a conversation thread, GPU usage goes through the roof and battery consumption makes it basically unusable off of charge

What steps can reproduce the bug?

Use the codex app and start a conversation. To feel the pain use it on an unplugged laptop.

What is the expected behavior?

No response

Additional information

No response

extent analysis

TL;DR

The issue is likely related to excessive GPU usage when starting a conversation thread in the Codex App, and a potential fix could involve optimizing the app's graphics rendering or adjusting system settings to reduce GPU load.

Guidance

  • Investigate the Codex App's graphics settings to see if there are any options to reduce GPU usage or switch to a lower-graphics mode.
  • Monitor system resource usage (e.g., Activity Monitor on Darwin) to confirm that GPU usage spikes when starting a conversation thread.
  • Consider reaching out to the Codex App support team to report the issue and ask about potential fixes or workarounds, especially given the Pro subscription.
  • Test the app on a different platform or device to see if the issue is specific to the Darwin 25.4.0 arm64 arm configuration.

Notes

The provided information does not include detailed technical specifications of the Codex App or its underlying architecture, which might be necessary for a more precise diagnosis.

Recommendation

Apply workaround: Given the information available, it seems prudent to explore workarounds such as adjusting system settings or app configurations to mitigate the high GPU usage, rather than waiting for a potential update or fix from the developers.

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codex - 💡(How to fix) Fix GPU usage still high, battery killer [1 comments, 2 participants]