Disruption with some Copilot services

Final update

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.

1. Resolved · Oct 28, 15:28 UTC
   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.
2. Monitoring · Oct 28, 15:26 UTC
   The degradation affecting Copilot has been mitigated. We are monitoring to ensure stability.
3. Investigating · Oct 28, 15:24 UTC
   Copilot is experiencing degraded performance. We are continuing to investigate.
4. Investigating · Oct 28, 15:15 UTC
   We have applied the mitigation and are seeing signs of recovery. We will continue to monitor and expect full resolution soon.
5. Investigating · Oct 28, 14:55 UTC
   We are experiencing degraded availability for the GPT-5.3-Codex, GPT-5.6 Luna, GPT-6.1 Sol, GPT-5.6 Terra, GPT-6 Luna, and MAI Code 1.1 Flash models in Copilot products and IDE surfaces. We have identified the root cause and working to apply a mitigation. While we work to resolve the issue we recommend choosing another model to continue using Copilot.
6. Investigating · Oct 28, 14:33 UTC
   We are experiencing degraded availability for the GPT-5.3-Codex, GPT-5.6 Luna, GPT-6.1 Sol, GPT-5.6 Terra, GPT-6 Luna, and MAI Code 1.1 Flash models in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue we recommend choosing another model to continue using Copilot.
7. Investigating · Oct 28, 14:15 UTC
   We are experiencing issues with upstream model providers resulting in a degraded experience across Copilot services. The team is actively investigating the issue.
8. Investigating · Oct 28, 14:12 UTC
   We are investigating reports of impacted performance for some GitHub services.