Codex Comes to the ChatGPT Mobile App: Remote Coding From Your Phone

Key Takeaways

• Codex is now in the ChatGPT app. OpenAI put its AI coding agent inside ChatGPT on iOS and Android — described in the video as rolling out around May 14, 2026 to every plan, including free. Codex does the work (builds pages, fixes bugs, runs tests, edits files); ChatGPT writes the text.
• Your phone is a remote control. Start a job on your computer, then walk away — the app shows progress live, and you can approve changes, switch models, or kick off a brand-new task from your phone.
• Push notifications replace babysitting. Your phone buzzes when a build finishes, when tests pass, or when Codex needs your approval to continue, so you only look when it actually matters.
• "Goals" let you set the finish line. Instead of feeding one tiny instruction at a time, you hand Codex a high-level outcome and it plans, builds, tests, and retries on its own until the goal is met — pausing only when it needs you.
• Side chat + inline review. A parallel "side chat" lets you ask questions without interrupting the running job. Before approving, file previews show the real diffs, and inline comments let you pin a note to a specific line — like commenting on a Google Doc — which Codex then acts on.