Building iPhone Duo apps in Codex with GPT-6 Sol

A demo shows GPT-6 Sol or Opus 5.5 in Codex or Claude Code installing Xcode 27.1 beta, setting up the iPhone Duo simulator, and building and launching an app.

Riley Brown

@rileybrownArchived 2026.09.24Originally posted 2026.09.24

Riley Brown @rileybrownOriginally posted 2026.09.24

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Wow… you can now vibe code apps for the iPhone Duo with GPT-6 Sol and Opus 5.5! When building with Codex or Claude Code, simply ask: “Install Xcode 27.1 beta, set up the iPhone Duo simulator, then build and launch my app so I can see how it looks.”

x.com/rileybrown/status/2102826181376774152Archived 2026.09.24 10:04

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