Companies/Braintrust/Incidents

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

Affected components: APIWeb UI / Control Plane

Timeline of updates

1. investigating2026-09-30 11:36 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.

2. investigating2026-09-30 11:50 UTC

   We are investigating elevated error rates and increased latency on the US centrally-hosted data plane. Some requests, including function invocations, BTQL queries and loading logs or experiments in the UI, may fail or time out.

3. monitoring2026-09-30 12:35 UTC

   We have applied a fix and are monitoring the results.

4. resolved2026-09-30 12:54 UTC

   The issue has been resolved.

Changes Rewindex caught on this incident

• Sep 30Major incident: Elevated errors and latency on the US data plane API

Impact, status and times are the vendor’s own, as last archived. View on status.braintrust.dev (opens in new tab).

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