Codex 5 has reduced intelligence

Resolved 💬 2 comments Opened Nov 17, 2025 by alixiaodi Closed Nov 17, 2025

What version of Codex is running?

0.5.39

What subscription do you have?

pro

Which model were you using?

codex5 high

What platform is your computer?

windows

What issue are you seeing?

The current codex5 is a fool, asking him to modify a problem won't solve anything. Using the same claude4,5 can completely solve it. Compared to last week's codex5, it feels much worse these days

What steps can reproduce the bug?

1

What is the expected behavior?

1

Additional information

_No response_

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