# Cursor: Major incident: Investigating service degradation - xAI models

**Summary:** Cursor reported a major xAI model degradation affecting CLI, Cloud Agents, Grok Bot, and IDE: users could see errors, slow responses, rate limiting, and failed Agent requests or Cloud Agent tasks. It started at 2026-09-29 19:43 UTC and was resolved at 2026-09-29 20:18 UTC; the reported duration was 34 min. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-09-29 19:43 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/dh24kf0vcpl8](https://stspg.io/dh24kf0vcpl8)
- [Company: Cursor](https://rewindex.com/company/cursor.md)
- Versions: before (none: first archived) → after incident\_version:11/dk1g1h4q8yf8@d5f69bf4a660
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Investigating service degradation - xAI models
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-29 19:43 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-29 20:18 UTC
```

**6. Added: Affected components**

```diff
+ CLI, Cloud Agents, Grok Bot, IDE
```

**7. Added: Update** (investigating) · 2026-09-29 19:43 UTC

```diff
+ We are investigating a service degradation affecting xAI models. Some Agent requests may fail.
```

**8. Added: Update** (identified) · 2026-09-29 20:01 UTC

```diff
+ We have identified the cause of degraded performance affecting xAI models and are working to restore full capacity. Users may see errors, slow responses, or rate limiting on these models, and some Cloud Agent tasks may fail. We will post another update shortly.
```

**9. Added: Update** (resolved) · 2026-09-29 20:18 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-29 19:43 UTC | Major incident: Investigating service degradation - xAI models (this change) | degradation |

All Cursor changes: [timeline](https://rewindex.com/company/cursor/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/i5259cda3434d7b · Markdown: https://rewindex.com/change/i5259cda3434d7b.md · JSON: https://rewindex.com/api/v1/changes/i5259cda3434d7b · Generated 2026-10-18T01:29:28.654Z