OpenAI Codex autonomously operates an iPhone simulator via its computer-use interface to build a chat app feature and complete full bug testing and debugging without human input

— 32-second split-screen recording shows real-time UI validation steps.

Original post

OPGB#19Greg Brockman|@GDB

Codex for building and debugging an iPhone simulator end to end:

10:05 AM · May 23, 2026 View on X