Disruption with some GitHub services
This summary is created by Generative AI and may differ from the actual content.
Overview
Disruption with some GitHub services, specifically the Opus 4.8 model in GitHub Copilot, between 17:20 UTC and 18:15 UTC on June 16, 2026.
Impact
Some requests to Opus 4.8 failed or errored, but other Copilot models were not affected and remained available as alternatives.
Trigger
An issue with an upstream model provider.
Detection
The issue was detected when users reported degraded availability for Copilot AI Model Providers.
Resolution
The issues with the upstream model provider were resolved, and Opus 4.8 is once again available in Copilot products and IDE surfaces. The degradation affecting Copilot AI Model Providers has been mitigated, and stability is being monitored.
Root Cause
The root cause of the incident was an issue with an upstream model provider.