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

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-09-30 11:36 UTC · Resolved: 2026-09-30 12:54 UTC · Duration: 1.3 h
- Updates: 4 · Affected components: API, Web UI / Control Plane
- [Vendor status page: https://status.braintrust.dev/incidents/01M3S1MHY02N6A59Z95C6RG1FD](https://status.braintrust.dev/incidents/01M3S1MHY02N6A59Z95C6RG1FD)
- [Company: Braintrust](https://rewindex.com/company/braintrust.md)

## Timeline of updates

- **investigating** 2026-09-30 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.
- **investigating** 2026-09-30 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.
- **monitoring** 2026-09-30 12:35 UTC: We have applied a fix and are monitoring the results.
- **resolved** 2026-09-30 12:54 UTC: The issue has been resolved.

## Rewindex changes for this incident

- 2026-09-30 11:36 UTC: [Major incident: Elevated errors and latency on the US data plane API](https://rewindex.com/change/ic6eec3cb8cc043.md)


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Canonical: https://rewindex.com/company/braintrust/incidents/01M3S1MHY02N6A59Z95C6RG1FD · Markdown: https://rewindex.com/company/braintrust/incidents/01M3S1MHY02N6A59Z95C6RG1FD.md · JSON: https://rewindex.com/api/v1/companies/braintrust/incidents/01M3S1MHY02N6A59Z95C6RG1FD · Generated 2026-10-19T23:33:56.614Z