# Retell AI: Major incident: Retell LLM API incident

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2025-04-23 21:09 UTC · Detected: 2026-10-19 17:03 UTC
- [Source: https://stspg.io/wjnj3tkf92kf](https://stspg.io/wjnj3tkf92kf)
- [Company: Retell AI](https://rewindex.com/company/retell-ai.md)
- Versions: before (none: first archived) → after incident\_version:682/b5rvgkwwh29b@7844a3ce722f
- Change 1 of 1 for this incident

Incident page (full timeline): [Retell LLM API incident](https://rewindex.com/company/retell-ai/incidents/b5rvgkwwh29b.md)
## What changed

**1. Added: Title**

```diff
+ Retell LLM API incident
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-04-23 21:09 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-04-23 18:30 UTC
```

**6. Added: Update** (resolved) · 2025-04-23 18:30 UTC

```diff
+ LLM API returned 200 errors on certain valid inputs. This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-04-23 21:09 UTC | Major incident: Retell LLM API incident (this change) | major |

All Retell AI changes: [timeline](https://rewindex.com/company/retell-ai/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/id7ab57dae9c59c · Markdown: https://rewindex.com/change/id7ab57dae9c59c.md · JSON: https://rewindex.com/api/v1/changes/id7ab57dae9c59c · Generated 2026-10-20T00:48:51.948Z