Incident with Copilot
This summary is created by Generative AI and may differ from the actual content.
Overview
Copilot service was degraded for Claude Haiku 4.5 model between 14:45 UTC and 16:19 UTC on February 23, 2026, with 6% of requests failing due to an issue with an upstream provider.
Impact
6% of requests to the Haiku 4.5 model failed, automated model degradation notifications directed affected users to alternative models.
Trigger
Issue with an upstream provider.
Detection
Automated model degradation notifications directed affected users to alternative models during the incident, but the original detection method is not explicitly stated.
Resolution
The upstream provider identified and resolved the issue on their end, and the team is working to improve automatic model failover mechanisms.
Root Cause
Issue with an upstream provider, with the provider recovering and the team awaiting a signal that the issue would not regress before mitigation was complete.