Elevated errors on GPT-5.4 Nano

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 · Nov 2, 18:24 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 · Nov 2, 18:10 UTC
   The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.
3. Investigating · Nov 2, 17:58 UTC
   We are experiencing degraded availability for the GPT-5.4 Nano model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider.
4. Investigating · Nov 2, 17:46 UTC
   We are investigating reports of elevated errors on GPT-5.4 Nano
5. Investigating · Nov 2, 17:46 UTC
   We are investigating reports of degraded performance for Copilot AI Model Providers