ChatGPT Major Outage April 20 — API, Codex, Voice All Down for 90+ Minutes, 8,700+ Reports

Tom's Guide·medium signal

ChatGPT experienced a significant outage on April 20 starting at ~10:05am ET, with over 8,700 Downdetector reports at peak. OpenAI confirmed a partial outage affecting ChatGPT, Codex, and the API Platform for at least 90 minutes, with blank pages, timeouts, login failures, and voice mode going completely offline. While Reddit claimed 'every single AI app' was down (191↑, 112 comments), verification confirms Claude, Gemini, and Copilot remained operational on separate infrastructure.