# GitHub Copilot: Major incident: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot

> Major incident: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot. Detected 2026-11-09 by Rewindex: what changed on GitHub Copilot’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/i16f9f5e6e2c5b3
Last updated: 2026-11-09T23:23:53Z

**Summary:** _summary pending_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-11-09 23:22 UTC · Detected: 2026-11-09 23:23 UTC
- [Source: https://www.githubstatus.com/incidents/6jm5k16vyhfg](https://www.githubstatus.com/incidents/6jm5k16vyhfg)
- [Company: GitHub Copilot](https://rewindex.com/company/github-copilot.md)
- Versions: before (none: first archived) → after incident\_version:18/6jm5k16vyhfg@7894aaf8e668
- Change 1 of 4 for this incident

Incident page (full timeline): [Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot](https://rewindex.com/company/github-copilot/incidents/6jm5k16vyhfg.md)
## What changed

**1. Added: Title**

```diff
+ Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-11-09 23:22 UTC
```

**5. Added: Affected components**

```diff
+ Copilot, Copilot AI Model Providers
```

**6. Added: Update** (investigating) · 2026-11-09 23:16 UTC

```diff
+ We are investigating reports of degraded availability for Copilot
```

**7. Added: Update** (investigating) · 2026-11-09 23:16 UTC

```diff
+ We are experiencing degraded availability for GPT-5.3 Codex, GPT-5.6 Luna, and GPT-5.6 Sol in Copilot products and IDE surfaces due to an issue with an upstream model provider. We recommend choosing another model or selecting Auto to continue using Copilot until the issue is resolved.
```

**8. Added: Update** (investigating) · 2026-11-09 23:22 UTC

```diff
+ Copilot AI Model Providers is experiencing degraded availability. We are continuing to investigate.
```

**9. Added: Update** (investigating) · 2026-11-09 23:22 UTC

```diff
+ Copilot is operating normally.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-11-09 23:22 UTC | Major incident: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot (this change) | degradation |
| 2026-11-09 23:53 UTC | [Incident updated: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot](https://rewindex.com/change/rcc010eeaf91e00.md) | Normal progress |
| 2026-11-10 00:03 UTC | [Incident updated: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot](https://rewindex.com/change/r789962fe61d10b.md) | Normal progress |
| 2026-11-10 00:13 UTC | [Incident updated: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot](https://rewindex.com/change/r14db8f1a5875b2.md) | Normal progress |

Next: [change](https://rewindex.com/change/rcc010eeaf91e00.md) · All GitHub Copilot changes: [timeline](https://rewindex.com/company/github-copilot/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._

## Cite this

Major incident: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot on GitHub Copilot’s status page, changed 2026-11-09 23:22 UTC (change 1 of 4).

- Canonical URL: https://rewindex.com/change/i16f9f5e6e2c5b3
- Citation: GitHub Copilot, “Major incident: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot” (2026-11-09 23:22 UTC). Archived by Rewindex: https://rewindex.com/change/i16f9f5e6e2c5b3 (CC BY 4.0).
- Markdown link: `[GitHub Copilot: Major incident: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot (2026-11-09)](https://rewindex.com/change/i16f9f5e6e2c5b3)`


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Canonical: https://rewindex.com/change/i16f9f5e6e2c5b3 · Markdown: https://rewindex.com/change/i16f9f5e6e2c5b3.md · JSON: https://rewindex.com/api/v1/changes/i16f9f5e6e2c5b3 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-10T18:54:56.896Z