# AssemblyAI: Critical incident: Pre-recorded Universal-3-pro and Universal-3-5-pro degradation in the EU

**Summary:** AssemblyAI reported a critical degradation affecting only EU pre-recorded audio transcription traffic for Universal-3-Pro and Universal-3-5-Pro. It started at 2026-06-24 09:13 UTC and was resolved at 2026-06-24 10:40 UTC, lasting 1 h 26 min. A fix was implemented at 10:05 UTC; all systems were operating normally at resolution. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-06-24 09:13 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/34ck4v4pddvf](https://stspg.io/34ck4v4pddvf)
- [Company: AssemblyAI](https://rewindex.com/company/assemblyai.md)
- Versions: before (none: first archived) → after incident\_version:2/gwjjm0kwqp5m@9c0fccbede1e
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Pre-recorded Universal-3-pro and Universal-3-5-pro degradation in the EU
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-06-24 09:13 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-06-24 10:40 UTC
```

**6. Added: Affected components**

```diff
+ APIs - Asynchronous API, Asynchronous API
```

**7. Added: Update** (investigating) · 2026-06-24 09:13 UTC

```diff
+ We are currently investigating degradations affecting only traffic to the EU versions of Universal-3Pro and Universal-3-5-pro for pre-recorded audio transcription.
```

**8. Added: Update** (identified) · 2026-06-24 09:34 UTC

```diff
+ Our engineering team has identified the issue and is actively working to implement a fix. We will continue to provide updates as more information becomes available.
```

**9. Added: Update** (monitoring) · 2026-06-24 10:16 UTC

```diff
+ A fix has been implemented and requests to the EU versions of Universal-3-Pro and Universal-3-5-Pro no longer show degradations. We are continuing to monitor to ensure stability.
```

**10. Added: Update** (resolved) · 2026-06-24 10:40 UTC

```diff
+ The issue affecting EU pre-recorded transcription for Universal-3-Pro and Universal-3-5-Pro has been fully resolved, the fix was implemented at 10:05 UTC. All systems are operating normally. We apologize for the disruption to your workflows. If you have any questions, please reach out to support@assemblyai.com.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-06-24 09:13 UTC | Critical incident: Pre-recorded Universal-3-pro and Universal-3-5-pro degradation in the EU (this change) | degradation |

All AssemblyAI changes: [timeline](https://rewindex.com/company/assemblyai/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/i56082358d41c0d · Markdown: https://rewindex.com/change/i56082358d41c0d.md · JSON: https://rewindex.com/api/v1/changes/i56082358d41c0d · Generated 2026-10-18T02:29:23.866Z