# Anthropic: Incident updated: Degraded performance for Claude Fable 5

> Incident updated: Degraded performance for Claude Fable 5. Detected 2026-10-21 by Rewindex: what changed on Anthropic’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/rf4f5ec4219daf5
Last updated: 2026-10-21T20:33:00Z

**Summary:** _summary pending_
- Kind: Incident update · Label: Normal progress (rule)
- Changed: 2026-10-21 20:33 UTC · Detected: 2026-10-21 20:33 UTC
- [Source: https://stspg.io/cgklr4v2sgkh](https://stspg.io/cgklr4v2sgkh)
- [Company: Anthropic](https://rewindex.com/company/anthropic.md)
- Versions: before incident\_version:1/njk29r81v3wg@d1276c9970f7 → after incident\_version:1/njk29r81v3wg@34810bd81a20
- Change 1 of 1 for this incident

Incident page (full timeline): [Degraded performance for Claude Fable 5](https://rewindex.com/company/anthropic/incidents/njk29r81v3wg.md)
## What changed

**1. Changed: Status**

```diff
- investigating
+ resolved
```

**2. Added: Resolved time**

```diff
+ 2026-10-21 20:29 UTC
```

**3. Added: Update** (resolved) · 2026-10-21 20:29 UTC

```diff
+ The issue affecting other Claude models has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-21 20:33 UTC | Incident updated: Degraded performance for Claude Fable 5 (this change) | Normal progress |

All Anthropic changes: [timeline](https://rewindex.com/company/anthropic/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._

## Cite this

Incident updated: Degraded performance for Claude Fable 5 on Anthropic’s status page, changed 2026-10-21 20:33 UTC (change 1 of 1).

- Canonical URL: https://rewindex.com/change/rf4f5ec4219daf5
- Citation: Anthropic, “Incident updated: Degraded performance for Claude Fable 5” (2026-10-21 20:33 UTC). Archived by Rewindex: https://rewindex.com/change/rf4f5ec4219daf5 (CC BY 4.0).
- Markdown link: `[Anthropic: Incident updated: Degraded performance for Claude Fable 5 (2026-10-21)](https://rewindex.com/change/rf4f5ec4219daf5)`


---
Canonical: https://rewindex.com/change/rf4f5ec4219daf5 · Markdown: https://rewindex.com/change/rf4f5ec4219daf5.md · JSON: https://rewindex.com/api/v1/changes/rf4f5ec4219daf5 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T17:40:44.276Z