# GitHub: Elevated rate of errors for OpenAI models provided by Copilot

> GitHub status incident “Elevated rate of errors for OpenAI models provided by Copilot” on 2026-09-17: impact minor (vendor’s label), 50 min, 3 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/github/incidents/nvy2q96mcmyg
Last updated: 2026-09-17T21:49:01Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-09-17 20:59 UTC · Resolved: 2026-09-17 21:49 UTC · Duration: 50 min
- Updates: 3 · Affected components: Copilot AI Model Providers
- [Vendor status page: https://stspg.io/t938cy7649sn](https://stspg.io/t938cy7649sn)
- [Company: GitHub](https://rewindex.com/company/github.md)

## Timeline of updates

- **investigating** 2026-09-17 20:59 UTC: We are investigating reports of degraded performance for Copilot AI Model Providers
- **monitoring** 2026-09-17 21:39 UTC: We are experiencing degraded availability for GPT-5.6 Luna, GPT-5.6 Terra, GPT-5.6 Sol, GPT-6 Astra, GPT-5.3-Codex in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. The provider is working to mitigate the problem and we are monitoring recovery. We recommend choosing another model or selecting 'Auto' to continue using Copilot.
- **resolved** 2026-09-17 21:49 UTC: Between 20:26 and 21:17 UTC on September 17, 2026, GitHub Copilot experienced degradation affecting several GPT models, including GPT-5.6 Luna, GPT-5.6 Terra, GPT-5.6 Sol, GPT-5.3-Codex, and GPT-6 Astra. Users encountered elevated error rates when using these models. The degradation was caused by an issue with an upstream model provider. GitHub engineers detected the issue through automated monitoring and coordinated with the provider. Our automated model-warning system activated in-product warnings for affected models during the incident. Service returned to normal after the provider implemented a mitigation.

## Cite this

Status incident (vendor impact label: minor) posted by GitHub, started 2026-09-17 20:59 UTC, resolved after 50 min, 3 update(s).

- Canonical URL: https://rewindex.com/company/github/incidents/nvy2q96mcmyg
- Citation: GitHub, “Elevated rate of errors for OpenAI models provided by Copilot” (2026-09-17 20:59 UTC). Archived by Rewindex: https://rewindex.com/company/github/incidents/nvy2q96mcmyg (CC BY 4.0).
- Markdown link: `[GitHub: Elevated rate of errors for OpenAI models provided by Copilot (2026-09-17)](https://rewindex.com/company/github/incidents/nvy2q96mcmyg)`


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Canonical: https://rewindex.com/company/github/incidents/nvy2q96mcmyg · Markdown: https://rewindex.com/company/github/incidents/nvy2q96mcmyg.md · JSON: https://rewindex.com/api/v1/companies/github/incidents/nvy2q96mcmyg · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:38:17.053Z