GitHub · Developer toolsOct 28, 2025, 16:39 UTC

Inconsistent results when using the Haiku 4.5 model

MinorDependencyUpdated 46d ago

Oct 28, 16:39 UTCOct 28, 17:11 UTC

Duration

32m

Impact

Minor

Root cause

Dependency

GitHub, 90 days

69 incidents

Affected

Not listed by the vendor.

Status page

Final update

From October 28th at 16:03 UTC until 17:11 UTC, the Copilot service experienced degradation due to an infrastructure issue which impacted the Claude Haiku 4.5 model, leading to a spike in errors affecting 1% of users. No other models were impacted. The incident was caused due to an outage with an upstream provider. We are working to improve redundancy during future occurrences.

Timeline

Resolved · Oct 28, 17:11 UTC
From October 28th at 16:03 UTC until 17:11 UTC, the Copilot service experienced degradation due to an infrastructure issue which impacted the Claude Haiku 4.5 model, leading to a spike in errors affecting 1% of users. No other models were impacted. The incident was caused due to an outage with an upstream provider. We are working to improve redundancy during future occurrences.