Conversations with 4.1 get rerouted to 5

[strong glacier]

Reported by @untold pasture

Bug Report: Conversations with 4.1 get rerouted to 5

`Steps to Reproduce`

Start the conversation with 4.1, especially with the smallest hint at emotional cue

`Expected Result`

Replies from 4.1 only, no exception

`Actual Result`

Replies from 5-Auto that cannot be regenerated in the model of choice; conversation gets locked in with undesired model; case similar to Friday Oct 24 2025 (broken reroute from 4o)

`Environment`

Across platforms

Nov 10, 2025, 10:27 PM

Additional Information

Please provide relevant details to help resolve the issue, such as:

• ChatGPT Shared Link (if applicable).
• Screenshots or videos demonstrating the problem.

-# ➜ Need to contact support? Visit the OpenAI Help Center.