# Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot

- Provider: [GitHub](https://down.guide/providers/github)
- Confidence: Confirmed
- Impact: Partial outage
- lasted 49m
- started 2026-11-09 23:16 UTC
- Copilot, Copilot AI Model Providers
- id: DWN-fcda70e41b
- Official page: https://stspg.io/t5gqmprtrdf2

## Summary
GitHub says Copilot availability was degraded 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. GitHub says the issue has been mitigated and it is monitoring to ensure stability.

_Written by anthropic/claude-haiku-5.5 from GitHub's own updates._

## Root cause
GitHub promised a root-cause report on 2026-11-10 00:05 UTC; none published yet.

## Updates from GitHub
### 2026-11-09 23:16 UTC: investigating
We are investigating reports of degraded availability for Copilot

### 2026-11-09 23:16 UTC: investigating
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.

### 2026-11-09 23:22 UTC: investigating
Copilot AI Model Providers is experiencing degraded availability. We are continuing to investigate.

### 2026-11-09 23:22 UTC: investigating
Copilot is operating normally.

### 2026-11-09 23:46 UTC: monitoring
The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.

### 2026-11-09 23:59 UTC: monitoring
The issue affecting GPT-5.3 Codex, GPT-5.6 Luna, and GPT-5.6 Sol in Copilot products and IDE surfaces has been mitigated. We are monitoring the service to ensure stability.

### 2026-11-10 00:05 UTC: resolved
This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

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