Web: Update model to GPT-5 based

Resolved 💬 3 comments Opened Sep 22, 2025 by JonnyVR1 Closed Oct 15, 2025

What version of Codex is running?

_No response_

Which model were you using?

_No response_

What platform is your computer?

Web

What steps can reproduce the bug?

codex --version

What is the expected behavior?

Some variant of GPT-5

What do you see instead?

_No response_

Additional information

_No response_

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3 Comments

MantraMedia · 11 months ago

It's not Gpt-5 but still the old codex model?

techjoec · 11 months ago

It's the new model

https://old.reddit.com/r/OpenAI/comments/1nny2xw/codex_cloud_still_using_41_not_gpt5_am_i_missing/

Striking-Action-4615 6 points 9 hours ago Hi! I’m an engineer on codex team. You’re definitely using gpt-5-codex, everyone is! There is an issue with a stale system prompt, will update asap, thanks for posting!

JonnyVR1 · 11 months ago

Yeah that's bullcrap - they've updated it to not tell you what model its using, amongst other regressions