# Baseten: Major incident: Kimi K3 Model API outage

**Summary:** Baseten reported a major Kimi K3 Model API outage starting 2026-09-20 07:19 UTC, lasting 54 min and resolving at 2026-09-20 08:13 UTC. About 20% of calls returned errors, with calls to the US-hosted endpoint specifically affected; a fix was implemented at 08:04 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-09-20 07:19 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/h2pvtp3x3np1](https://stspg.io/h2pvtp3x3np1)
- [Company: Baseten](https://rewindex.com/company/baseten.md)
- Versions: before (none: first archived) → after incident\_version:3/53lh9mv05wmt@b29a19a6a6cb
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Kimi K3 Model API outage
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-20 07:19 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-20 08:13 UTC
```

**6. Added: Affected components**

```diff
+ Model APIs
```

**7. Added: Update** (identified) · 2026-09-20 07:19 UTC

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

**8. Added: Update** (identified) · 2026-09-20 07:30 UTC

```diff
+ ~20% of calls are resulting in errors. A fix is in progress.
```

**9. Added: Update** (identified) · 2026-09-20 07:59 UTC

```diff
+ Calls to the US-hosted endpoint are resulting in errors. A fix is in progress.
```

**10. Added: Update** (monitoring) · 2026-09-20 08:04 UTC

```diff
+ A fix has been implemented and we are monitoring the results.
```

**11. Added: Update** (resolved) · 2026-09-20 08:13 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-20 07:19 UTC | Major incident: Kimi K3 Model API outage (this change) | outage |

All Baseten changes: [timeline](https://rewindex.com/company/baseten/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/i1cfb8ad0f64250 · Markdown: https://rewindex.com/change/i1cfb8ad0f64250.md · JSON: https://rewindex.com/api/v1/changes/i1cfb8ad0f64250 · Generated 2026-10-18T02:31:50.839Z