As of May 8th, 2026, after I upgraded to "codex-cli 0.129.0" via Xcode, I can no longer sign into my ChatGPT account in Xcode Intelligence Settings.
The Log In window is always successful, but the settings never update to show the login being successful. It's a constant loop. Perhaps a hand-shake fail.
Versions: Tahoe 26.3.1, Xcode 26.4.1, codex-cli 0.129.0.
Thanks for reporting this! We are looking into it.
Hi, thank you again.
We were unable to reproduce this on our end with Xcode 26.4.1 and Codex 0.129.0-alpha.9, so it may be something specific to your configuration.
Could you navigate to Xcode Settings → Components → Other Components → Codex and check the version listed there? It should read 0.129.0-alpha.9. If it shows a different version or indicates an update is available, try deleting it and redownloading the agent executable, then attempt signing in again.
Let us know if that resolves the issue or if you're still seeing the login loop afterward, and we can dig deeper from there.
im seeing 0.129.0-alpha.9 on my end. is it worth deleting and redownloading it anyways?
(also for some reason when i try to comment on a response i get the error: "Your post couldn't be saved. Please try again in a few minutes")
so i actually tried deleting the codex component and redownload it, but im still running into the same issue. sign in handshake seems to failing.
You're lucky I've got 0.129.0-alpha.9 on my MMM4Pro in Xcode RC 26.5 but I can't get it on my MBPM1P in Xcode RC 26.5, but 0.120.0 is fine and signs in. on the MBPM1P in Xcode 26.4.1, I can't sign-in with that tho...
So in summary on the:
MacMini M4 Pro signed in to 0.129.0-alpha.9 and Codex 5.5 picked (Xcode RC 26.5)
MacBook Pro M1 Pro signed in to 0.120.0 and Codex 5.4 picked, (i.e. can't get alpha.9 so can't get 5.5! even tho Xcode RC 26.5!)
My problem I think is I didn't upgrade the Codex on the MBP before doing the macOS RC 26.5 + Xcode RC 26.5 (Like I did on the MacMini).
And since I didn't upgrade in Xcode 26.4.1, when I did the full RC cycle, when I launched Xcode RC 26.5, it upgrade the Codex Plug-in but stopped at 0.120.0! On the MBP+Xcode RC 26.5
UGH 🤷🏻
i managed to find a workaround. i deleted Xcode and all it's associated files via AppCleaner. then i downloaded the 26.5 RC file on the Apple Developer site. the "Sign In With a ChatGPT Account..." still isn't working, but they added an "Authenticate with configuration file..." option. if you set it up with that, then it works just fine.
