I use a GPT+ “Corporate” account and I’m using Google Chrome yet I can not use @ to tag GPTs and I don’t know why!? Any help, please?

It looks like it’s working for me. It only calls recent or pinned GPTs, if you haven’t any that might be it. But I think it’s more likely they’re just updating something in the background.

Same here, noticed today, I can individually go to other Gpts, but using the @ reference mid session doesn’t work

Same here, never worked in macOS App, now web neither

Hi, is it possible that the invocation of GPTs with “@” has been removed? I was never able to use it from the macOS app, but now I can’t use it from the web either. I type “@” and nothing appears. It was working until yesterday.

My pinned custom gpts didn’t appear anymore when I try to use “@” tag or mention… .are they changing setup, it’s a good function

It’s a known bug for almost a month now. @mentions do work in the default GPT, but not in any custom GPT (on the web). [image] Mention GPTs feature doesn't work Bugs Hey everyone, I noticed that “mention” another GPT in a chat is now gone for me and I can’t …

I have pinned it. Does not work for me. I created a project space and trying to call by @ my custom gpt, seems not working. Can any one help ?

Since the GPT-5.1 rollout, GPT Mentions (@customGPT) no longer appear in Chrome browser or Android. I have multiple pinned GPTs and previously used multi-agent workflows extensively. This is not device-specific: – Browser: no @ menu – Android: no @ menu – Multiple accounts tested – Others repo…

Known issue. See the post titled “@mentions feature for custom GPTs not working with GPT-5.1 on Web and in Android app”. I’d post a link but I’m not allowed to.

Tagging other GPTs using the @ doesn’t work with me in Web version GPT+

GPT builders

iyvljtjqleyj November 26, 2025, 11:39am 11

They killed it once again since GPT 5.1.

See Mention GPTs feature doesn't work - #9 by iyvljtjqleyj

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Tagging other GPTs using the @ doesn’t work with me in Web version GPT+

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