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BraintrustIncident · 2026-09-04 15:19 UTC

Elevated 5XXs on Control Plane API

ResolvedOfficial update

The issue causing elevated errors in the Braintrust control plane APIs has been resolved.

The latest update from Braintrust.

State

Resolved

Started

58 d ago

2026-09-04 15:19 UTC

Lasted

33 min

until 2026-09-04 15:52 UTC

Worst impact

Partial outage

Timeline

3 updates
15:1915:2715:3615:4415:52
Partial outageUpdate postedTimes in UTC

Investigating

14 min 44%

Monitoring

18 min 56%

Updates

Times in UTC

As posted by Braintrust

Resolved2026-09-04 15:52 UTC

The issue causing elevated errors in the Braintrust control plane APIs has been resolved.

Monitoring2026-09-04 15:34 UTC

We have mitigated the issue causing elevated errors in the Braintrust control plane APIs, we are continuing to monitor closely.

Investigating2026-09-04 15:19 UTC

We are investigating elevated errors affecting the Braintrust control plane APIs. Some users may experience failures when accessing projects, prompts, settings, or creating new resources.

Braintrust in the last 90 days

Full history
90 days agoToday

Incidents in 90 days

4

Days with an incident

4

Median duration

59 min

This incident

45% shorter than the median

How long each incident lasted, on the day it started. The outlined bar is this incident.

4 h 33 min
median 59 min
90 days agoToday

Other Braintrust incidents

All incidents

Braintrust·Elevated errors and latency on the US data plane API

The issue has been resolved.

Resolvedresolved 33 d ago

Braintrust·Slow or failed data loading in US region

The issue causing slow or failed data loading in our US-hosted service has been resolved. We're sorry for the disruption.

Resolvedresolved 53 d ago

Braintrust·Upstream package mirror is degraded, Brainstore is not currently affected

The upstream APT package mirror in AWS us-east-1 has recovered and we're no longer seeing impact when starting new brainstore instances.

Resolvedresolved 74 d ago

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