I am the owner/admin of a ChatGPT Business workspace and am trying to obtain a meaningful technical review of a reproducible model-routing mismatch. Strict controlled comparison Both tests used: the same ChatGPT Business account and workspace the same ChatGPT conversation the same endpoint: POST …

I think a lot of other users had met that issues yesterday!

I would like to report a serious issue regarding the mismatch between the selected model and the model actually being used. When I select a higher-tier model such as GPT-5.6 in the model picker, I expect my conversations to run on that model. However, there appear to be cases where the interface sh…

@OpenAI_Support — could you please take ownership of coordinating existing Support Case 13542447 and confirm that it is in the appropriate technical escalation queue? Since the original post, I have provided Support with a much stronger HAR-verified matrix: Chrome normal, GPT-5.6 Pro standard → s…

I’m having that issue aswell, it is so annoying. I hope they fix it asap :slight_smile:

[image] 5.6 pro model has been automatically downgraded and routed to the 5.5 mini model since its release Bugs Hi everyone, I am a subscriber of the ChatGPT Pro 5x tier. Since the release of version 5.6, I haven’t had the chance to use the Pro tier model. I …

I’ve also encountered this issue, and it looks like this may not be limited to a single account or device. Sharing details and observations in the main thread could help everyone compare experiences and make the issue easier to track.

Browser-specific GPT-5.6 routing mismatch: Chrome resolves to GPT-5.5-mini, Edge stays on GPT-5.6 (Case 13542447)

ChatGPT Bugs

thomas181 August 22, 2026, 10:18am 6

Well, don’t keep your hopes up…

It’s been happening for other users over the span of a month.

And if you file a support ticket they just gaslight you… and then ghost you if you follow up.

Topic		Replies	Views
I need to report a model routing issue / silent downgrade Bugs bug	4	195	August 22, 2026
Possible GPT-5.6 Sol routing mismatch: selected GPT-5.6 but server metadata shows GPT-5.5-mini Bugs chatgpt	16	1303	August 24, 2026
ChatGPT Web requests GPT-5.6 Sol but server resolves GPT-5.5-mini on Plus accounts Bugs chatgpt	5	591	August 23, 2026
ChatGPT is silently downgrading to mini models Bugs	4	410	August 22, 2026
Pro subscription routing to GPT-5.3 Mini for 48+ hours — no reset timer visible [Case #10179682] Support chatgpt	65	2519	August 12, 2026

Browser-specific GPT-5.6 routing mismatch: Chrome resolves to GPT-5.5-mini, Edge stays on GPT-5.6 (Case 13542447)

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