Thinking mode not working | OpenAI | Page 1

inland axleBOT Oct 26, 2025, 9:55 AM

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Reported by @real geyser

Bug Report: Thinking mode not working

`Steps to Reproduce`

I have thinking selected in the model but its not thinking and just giving a wrong answer most of the time immediately

`Expected Result`

Usually shows that its thinking and gives option to skip

`Actual Result`

Answers immediately

`Environment`

Chrome Windows 11

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Additional Information

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

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

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real geyser Oct 26, 2025, 9:55 AM

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not working for other complex tasks too such as fixing errors in code

real geyser Oct 26, 2025, 10:32 AM

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Update: now thinking is working on my phone but not pc on any browser

real geyser Oct 26, 2025, 10:49 AM

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broke on mobile app again

real geyser Oct 26, 2025, 12:12 PM

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Says it uses thinking answers instantly and does it wrong

winter haven Oct 26, 2025, 3:24 PM

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real geyser

This is the exact problem I'm having on my Perplexity Comet browser bro

real geyser Oct 26, 2025, 3:45 PM

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winter haven This is the exact problem I'm having on my Perplexity Comet browser bro

im having this problem on all browsers and mobile app

winter haven Oct 27, 2025, 4:05 AM

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Update: it's finally fixed

winter haven Oct 27, 2025, 9:21 PM

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Update: It broke again

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Update: it works but only with hardware acceleration on

river oasis Oct 28, 2025, 1:16 PM

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Still broken now it’s affecting Mac OS

winter haven Oct 29, 2025, 2:01 AM

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I dont get it, It worked when it had the hardware acceration on and then i deleted the browser cookies and now it won't work with the acceration on as well as off

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I don't get why this is only happen on Comet for me and not others

winter haven Oct 30, 2025, 4:47 AM

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Update; Still not working on the Perplexity Comet Browser

sick niche Oct 30, 2025, 4:55 AM

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I am now affected by this (Edge browser).

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Updating the browser seems to have fixed it.

#Thinking mode not working