# AssemblyAI: Major incident: Delayed processing of transcripts on Slam

**Summary:** AssemblyAI reported a major degradation affecting Slam-1 in us-west-2: transcripts queued or errored; Universal was unaffected. The incident record started at 2025-11-20 08:21 UTC, though the vendor said delays began at 5:43 UTC. A fix restored normal processing at 08:47 UTC; resolution was confirmed at 09:41 UTC, with a recorded duration of 1 h 20 min. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2025-11-20 08:21 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/tmgyvxrj413d](https://stspg.io/tmgyvxrj413d)
- [Company: AssemblyAI](https://rewindex.com/company/assemblyai.md)
- Versions: before (none: first archived) → after incident\_version:2/51zz2w7msjvg@6be7bc4c90ae
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Delayed processing of transcripts on Slam
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-11-20 08:21 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-11-20 09:41 UTC
```

**6. Added: Affected components**

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

**7. Added: Update** (investigating) · 2025-11-20 08:21 UTC

```diff
+ We are currently investigating an issue where there has been delayed processing of transcripts on Slam-1, specifically in our us-west-2 region. This began at 5:43 UTC. Customers will experience queueing or erroring of transcripts when using our Slam-1 model. Our Universal model is not affected by this incident.
```

**8. Added: Update** (identified) · 2025-11-20 08:26 UTC

```diff
+ The issue has been identified and a fix is being implemented.
```

**9. Added: Update** (monitoring) · 2025-11-20 08:47 UTC

```diff
+ A fix has been implemented and our team is monitoring the results. Slam-1 has resumed normal processing.
```

**10. Added: Update** (resolved) · 2025-11-20 09:41 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-11-20 08:21 UTC | Major incident: Delayed processing of transcripts on Slam (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/i8cb1f380570a98 · Markdown: https://rewindex.com/change/i8cb1f380570a98.md · JSON: https://rewindex.com/api/v1/changes/i8cb1f380570a98 · Generated 2026-10-18T03:32:30.762Z