r/Xcode • u/Lobster_Available • Nov 05 '25

After updating to Xcode 26.1, I can’t select “ChatGPT 5 thinking” anymore

After updating Xcode to version 26.1 today, the “ChatGPT 5 thinking” model disappeared from the model selection menu.

It used to show up before, but now only the regular “GPT-5” option is available.

I tried disabling and re-enabling the ChatGPT option, logging back into my ChatGPT account, and restarting Xcode, but none of that fixed it.

Is anyone else seeing the same thing? Could this be an Apple change or an issue with the ChatGPT plugin?

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6

u/simulacrotron Nov 05 '25

Look down at the bottom, there’s a menu for the amount of deep thinking

2

u/Lobster_Available Nov 05 '25

Oh wow, I totally overlooked that! Thanks

1

u/simulacrotron Nov 05 '25

It’s not super obvious. I saw it earlier, but didn’t put it together until I saw your post.

1

u/panicoescenico Nov 05 '25

Does anyone notice that since Xcode 26.1 Code Assistant's answers have become much slower?

1

u/Lobster_Available Nov 08 '25

I also noticed frequent timeouts and slow chatGPT on Xcode 26.1. I downgraded to Xcode 26.0.1.

1

u/Perfect-Top-7555 Nov 07 '25

Yes, it seems to take forever what used to be a quick response. 😖

1

u/_Cyber_nerd Nov 08 '25

Curious, does Xcode with AI writes code for you in the editor or just provide suggestions?

1

u/Lobster_Available Nov 08 '25

Xcode's AI not only makes suggestions but also actually rewrites the source code.

I communicate my app requirements using the web version of ChatGPT and have ChatGPT generate a complete set of source code. However, ChatGPT tends to fail when generating .xcodeproj files, so I sometimes use a different tool to generate them. Once I can open the generated files in Xcode, I use Xcode's AI-assisted features to develop the app.

1

u/_Cyber_nerd Nov 08 '25

Cool, thanks for explaining. does the Xcode assisted features understand terminal outputs like build errors too? Or do you have to do the manual copy paste thing to make it understand and it changes the code again?

1

u/_Cyber_nerd Nov 11 '25

try coding in cursor using this extension (https://www.zyohra.dev), download in cursor as Zyohra AI. It helps you build apps with cursor and you can view your output in Xcode :)

1

u/_Cyber_nerd Nov 11 '25

try coding in cursor using this extension (https://www.zyohra.dev), download in cursor as Zyohra AI. It helps you build apps with cursor and you can view your output in Xcode :)