Codex users report a missing dev-server play button after switching from ChatGPT mode
billyjhowell · x · 2026-07-23
A user asks detailed workflow questions about Codex: whether a thread started in ChatGPT mode stays in that mode after switching the dropdown to Codex, and whether the old "play" button for launching a dev server has disappeared.
They describe a common flow: create a new folder, open it as a project, let Codex plan and build the app in a subdirectory, then lose the one-click way to start the local server and open the browser inside Codex. The workaround now requires opening a terminal and clicking localhost, adding several extra steps to testing.
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