Agent Performance Degradation in az-eastus-1

Update timeline

1. investigating Feb 03, 2026, 01:22 PM UTC

   Status: Investigating Atlas users are encountering frequent errors and reduced performance when working with agents. Affected components Cognite Data Fusion UI (Degraded performance) Cognite Data Fusion API (Degraded performance)

2. investigating Feb 03, 2026, 08:50 PM UTC

   Status: Investigating If performance and load issues are observed, we recommend utilizing the following models to ensure optimal performance: • gpt-5 • gpt-5-nano • gpt-4.1 • gpt-4.1-mini • gpt-4.1-nano Affected components Cognite Data Fusion UI (Degraded performance) Cognite Data Fusion API (Degraded performance)

3. identified Feb 04, 2026, 01:54 PM UTC

   Status: Identified We have identified the underlying issue and we are currently working on a fix. A potential fix will be available once it is thoroughly tested. Affected components Cognite Data Fusion UI (Degraded performance) Cognite Data Fusion API (Degraded performance)

4. resolved Feb 06, 2026, 08:39 AM UTC

   Status: Resolved The issue is now fully contained and all impacted services are back in operation. Affected components Cognite Data Fusion UI (Operational) Cognite Data Fusion API (Operational)