# Braintrust: Major incident: Elevated 5XXs on Control Plane API

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-09-04 15:19 UTC · Detected: 2026-10-19 17:03 UTC
- [Source: https://status.braintrust.dev/incidents/01M1PG2CDCKSZNZ1PS1RBDQ6FC](https://status.braintrust.dev/incidents/01M1PG2CDCKSZNZ1PS1RBDQ6FC)
- [Company: Braintrust](https://rewindex.com/company/braintrust.md)
- Versions: before (none: first archived) → after incident\_version:672/01M1PG2CDCKSZNZ1PS1RBDQ6FC@c5330920899a
- Change 1 of 1 for this incident

Incident page (full timeline): [Elevated 5XXs on Control Plane API](https://rewindex.com/company/braintrust/incidents/01M1PG2CDCKSZNZ1PS1RBDQ6FC.md)
## What changed

**1. Added: Title**

```diff
+ Elevated 5XXs on Control Plane API
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-04 15:19 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-04 15:52 UTC
```

**6. Added: Update** (investigating) · 2026-09-04 15:19 UTC

```diff
+ 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.
```

**7. Added: Update** (monitoring) · 2026-09-04 15:34 UTC

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

**8. Added: Update** (resolved) · 2026-09-04 15:52 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-04 15:19 UTC | Major incident: Elevated 5XXs on Control Plane API (this change) | major |

All Braintrust changes: [timeline](https://rewindex.com/company/braintrust/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i5a9cdad1c9e238 · Markdown: https://rewindex.com/change/i5a9cdad1c9e238.md · JSON: https://rewindex.com/api/v1/changes/i5a9cdad1c9e238 · Generated 2026-10-20T00:48:50.294Z