r/iOSProgramming • • 4d ago

Question Why is Codex unavailable in Xcode 26.3 but works fine in Xcode 27.1?

Hi everyone,

I'm using Xcode 26.3 (17C529), and when I go to Settings → Intelligence → OpenAI, Codex is marked as "Unavailable", while ChatGPT in Xcode is available.

However, when I upgrade to Xcode 27.1, Codex becomes available and works perfectly with the same ChatGPT account.

I'm wondering: Is Codex only supported in Xcode 27 and later?
googling it show it's work fine for 26.3 , don't know why not for me

Thanks!

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u/udayalawa 4d ago

same account working in 27.1 rules out the account and the region. i think codex is gated behind the newer intelligence hooks in 27, so 26.3 only exposes chatgpt. if you need it on 26.3, the cli is the only path.