analysis
OpenAI Brings Codex to the ChatGPT Mobile App: Your Phone Is Now a Control Surface (May 2026)
OpenAI announced on May 14, 2026 that Codex is coming to the ChatGPT mobile app on iOS and Android, rolling out May 15 as a preview across all plans including Free and Go. The phone becomes a control surface, not an execution device: you supervise, approve, redirect, and reassign Codex sessions running on your laptop, Mac mini, or devbox. OpenAI says Codex has more than 4 million weekly users, and the strategic story is the bid to own the async supervision surface as cloud handoff becomes the category default.