# OpenAI: Critical incident: Issues with Codex 

**Summary:** Codex experienced a critical outage with elevated errors starting 2026-09-25 22:58 UTC, lasting 55 min and resolving at 2026-09-25 23:54 UTC. OpenAI advised that login via API key would unblock access, then applied a mitigation and confirmed full recovery. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-09-25 22:58 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://status.openai.com/incidents/01M3DCNWMW57HYK8FJ5FBFPA39](https://status.openai.com/incidents/01M3DCNWMW57HYK8FJ5FBFPA39)
- [Company: OpenAI](https://rewindex.com/company/openai.md)
- Versions: before (none: first archived) → after incident\_version:31/01M3DCNWMW57HYK8FJ5FBFPA39@3b7e69ab181f
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Issues with Codex 
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-25 22:58 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-25 23:54 UTC
```

**6. Added: Update** (identified) · 2026-09-25 22:58 UTC

```diff
+ We have identified that users are experiencing a codex outage. We have identified the internal issue and are heading towards a mitigation.
```

**7. Added: Update** (identified) · 2026-09-25 23:03 UTC

```diff
+ We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation.
```

**8. Added: Update** (identified) · 2026-09-25 23:19 UTC

```diff
+ Login via API key will unblock access at this time.
```

**9. Added: Update** (identified) · 2026-09-25 23:34 UTC

```diff
+ We have identified root cause and are moving towards mitigation.
```

**10. Added: Update** (monitoring) · 2026-09-25 23:45 UTC

```diff
+ We have applied the mitigation and are monitoring the recovery.
```

**11. Added: Update** (resolved) · 2026-09-25 23:54 UTC

```diff
+ All impacted services have now fully recovered.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-25 22:58 UTC | Critical incident: Issues with Codex  (this change) | outage |

All OpenAI changes: [timeline](https://rewindex.com/company/openai/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/ic7fb824eecc22b · Markdown: https://rewindex.com/change/ic7fb824eecc22b.md · JSON: https://rewindex.com/api/v1/changes/ic7fb824eecc22b · Generated 2026-10-18T02:27:12.456Z