# Some OpenAI models degraded in Copilot

- Provider: [GitHub Copilot](https://down.guide/providers/github-copilot)
- Confidence: Confirmed
- Impact: Degraded
- lasted 26m
- started 2026-03-05 00:47 UTC
- Copilot
- GitHub Copilot states the impact was 2026-03-05 00:26 to 00:44 UTC (18m)
- id: DWN-285232ba2a
- Official page: https://stspg.io/ynz3ctryhr3g

## Updates from GitHub Copilot
### 2026-03-05 00:47 UTC: investigating
We are investigating reports of degraded performance for Copilot

### 2026-03-05 00:53 UTC: investigating
We are experiencing degraded availability for the gpt-5.3-codex model in Copilot Chat, VS Code and other Copilot products. This is due to an issue with an upstream model provider. We are working with them to resolve the issue.

### 2026-03-05 01:13 UTC: investigating
The issues with our upstream model provider have been resolved, and gpt-5.3-codex is once again available in Copilot Chat and across IDE integrations. We will continue monitoring to ensure stability, but mitigation is complete.

### 2026-03-05 01:13 UTC: resolved
On March 5th, 2026, between approximately 00:26 and 00:44 UTC, the Copilot service experienced a degradation of the GPT 3.5 Codex model due to an issue with our upstream provider. Users encountered elevated error rates when using GPT 3.5 Codex, impacting approximately 30% of requests. No other models were impacted.
The issue was resolved by a mitigation put in place by our provider.

From the builder: does your app depend on GitHub Copilot? [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=github-copilot) detects problems in your own logs without hand-written monitors, and you can ask it in plain language which errors mention GitHub Copilot.

---
down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by [Sazabi](https://www.sazabi.com/?utm_source=down-guide&utm_medium=markdown&utm_content=DWN-285232ba2a), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.