Inconsistent results when using the Haiku 4.5 model
This summary is created by Generative AI and may differ from the actual content.
Overview
The Copilot service experienced degradation from October 28th at 16:03 UTC until 17:11 UTC due to an infrastructure issue impacting the Claude Haiku 4.5 model. This led to a spike in errors affecting 1% of users. The incident was caused by an outage with an upstream provider, and no other models were impacted. The issue was resolved when the upstream provider's outage ended, restoring the Haiku 4.5 model's availability.
Impact
The Copilot service experienced degradation, specifically impacting the Claude Haiku 4.5 model, leading to a spike in errors affecting 1% of users. The incident lasted for 1 hour and 8 minutes. No other models were affected.
Trigger
The incident was triggered by an infrastructure issue impacting the Claude Haiku 4.5 model, which itself was caused by an outage with an upstream provider.
Detection
The issue was identified, leading to an investigation into the degraded usage of the Haiku 4.5 model with Copilot experiences, as indicated by the 'Investigating' status at 16:39 UTC and subsequent update at 16:42 UTC.
Resolution
The issues with the upstream model provider were resolved, which in turn made the Claude Haiku 4.5 model available again in Copilot Chat and across IDE integrations. Monitoring continued to ensure stability.
Root Cause
The root cause of the incident was an outage experienced by an upstream provider, which subsequently caused an infrastructure issue impacting the Claude Haiku 4.5 model within the Copilot service.