[2025-10-28] Incident Thread

[github-actions[bot]]

❗ An incident has been declared:

Inconsistent results when using the Haiku 4.5 model

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[github-actions[bot]]

Update

Usage of the Haiku 4.5 model with Copilot experiences is currently degraded. We are investigating and working to remediate. Other models should be unaffected.

[github-actions[bot]]

Update

The issues with our upstream model provider have been resolved, and Claude Haiku 4.5 is once again available in Copilot Chat and across IDE integrations.

We will continue monitoring to ensure stability, but mitigation is complete.

[github-actions[bot]]

Incident Resolved

This incident has been resolved.