OpenAI Codex outage history and uptime
Every minute we record whether OpenAI Codex looked normal, had problems or was likely down (how we decide). This page adds those minutes up by month and lists every incident we've recorded. We started tracking in October 2026, so the first month is partial.
| Month (UTC) | Uptime | Problems | Likely down | Incidents |
|---|---|---|---|---|
| November 2026 | 100% | none | none | 0 |
| October 2026 | 97.50% | 7 h 56 min | none | 4 (4 official) |
Uptime is the share of minutes in which our verdict was “No problems”. Problems and Likely down are the total time with each verdict. Official figures from OpenAI can differ, because they measure their own systems and we also count our checks and visitor reports.
All OpenAI Codex incidents
October 2026
- Problems · · lasted 5 h 54 min · official incident Some users report problems
- Problems · · lasted 32 min · official incident Some users report problems
- Problems · · lasted 2 h 16 min · official incident Some users report problems
- Problems · · lasted 21 min · official incident Some users report problems
OpenAI Codex is a product of OpenAI. IsAIDownNow is independent and not affiliated with OpenAI.