# Pulumi: Critical incident: Neo Outage

**Summary:** Pulumi Neo experienced a critical outage with a high rate of upstream errors for inference calls, starting 2026-09-11 18:02 UTC and lasting 6 h 17 min. Pulumi switched model versions, which stabilized inference calls, and resolved the incident at 2026-09-12 00:19 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-09-11 18:02 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/032b37bll728](https://stspg.io/032b37bll728)
- [Company: Pulumi](https://rewindex.com/company/pulumi.md)
- Versions: before (none: first archived) → after incident\_version:200/j65w8kggz8bs@eaf5c6f0149a
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Neo Outage
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-11 18:02 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-12 00:19 UTC
```

**6. Added: Affected components**

```diff
+ Pulumi Neo
```

**7. Added: Update** (monitoring) · 2026-09-11 18:02 UTC

```diff
+ We are currently experiencing a high rate of upstream errors for Neo inference calls.
```

**8. Added: Update** (monitoring) · 2026-09-11 18:41 UTC

```diff
+ We have switched model versions and are continuing to monitor
```

**9. Added: Update** (monitoring) · 2026-09-12 00:19 UTC

```diff
+ Switching models has stabilized Neo inference calls
```

**10. Added: Update** (resolved) · 2026-09-12 00:19 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-11 18:02 UTC | Critical incident: Neo Outage (this change) | outage |

All Pulumi changes: [timeline](https://rewindex.com/company/pulumi/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/ifac81059d727ba · Markdown: https://rewindex.com/change/ifac81059d727ba.md · JSON: https://rewindex.com/api/v1/changes/ifac81059d727ba · Generated 2026-10-18T00:02:17.837Z