ChatGPT chat model downgrade
Open 💬 2 comments Opened Aug 21, 2026 by Printf-wow
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of the Codex App are you using (From “About Codex” dialog)?
26.818.31338
What subscription do you have?
plus
What platform is your computer?
Microsoft Windows NT 10.0.19045.0
What issue are you seeing?
我在使用chatgpt聊天时，使用的是5.6高级模型，可以回答我的一直是GPT5.5-mini。什么原因导致的，可不可以恢复
What steps can reproduce the bug?
Feedback ID: no-active-thread-01a02546-02c3-7ee0-a5ae-f93210f6d95a
What is the expected behavior?
我用5.6高级模型时回复我的是相对应的模型
Additional information
_No response_
2 Comments
English translation:
What version of the Codex App are you using (From “About Codex” dialog)?
26.818.31338
What subscription do you have?
plus
What platform is your computer?
Microsoft Windows NT 10.0.19045.0
What issue are you seeing?
When I use ChatGPT chat, I select the 5.6 advanced model, but the model that responds is always GPT5.5-mini. What is causing this, and can it be restored?
What steps can reproduce the bug?
Feedback ID: no-active-thread-01a02546-02c3-7ee0-a5ae-f93210f6d95a
What is the expected behavior?
When I use the 5.6 advanced model, I expect the corresponding model to respond.
Additional information
_No response_
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