Significant GPU usage when running prompt
Resolved 💬 1 comment Opened Apr 12, 2026 by simonliu99 Closed Apr 12, 2026
What version of the Codex App are you using (From “About Codex” dialog)?
26.409.20454 (1462)
What subscription do you have?
Pro
What platform is your computer?
Darwin 25.5.0 arm64 arm
What issue are you seeing?
Running Codex app on Macbook Air M2. Seeing up to 100% GPU usage when running prompts. Doesn't happen on all prompts but seems to be more common when running subagents.
What steps can reproduce the bug?
Run prompt with 2+ subagents.
What is the expected behavior?
Previous issue #10432 related, seems to be much better than before but still sometimes causes 100% GPU usage.
Additional information
_No response_
This issue has 1 comment on GitHub. Read the full discussion on GitHub ↗