# Anthropic: Incident updated: Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5

**Summary:** _summary pending_
- Kind: Incident update · Label: Normal progress (rule)
- Changed: 2026-10-24 00:04 UTC · Detected: 2026-10-24 00:04 UTC
- [Source: https://status.claude.com/incidents/h101vcmhnfky](https://status.claude.com/incidents/h101vcmhnfky)
- [Company: Anthropic](https://rewindex.com/company/anthropic.md)
- Versions: before incident\_version:1/h101vcmhnfky@c158901ca049 → after incident\_version:1/h101vcmhnfky@20fe16057b2c
- Change 2 of 3 for this incident

Incident page (full timeline): [Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5](https://rewindex.com/company/anthropic/incidents/h101vcmhnfky.md)
## What changed

**1. Changed: Status**

```diff
- identified
+ monitoring
```

**2. Added: Update** (monitoring) · 2026-10-23 23:54 UTC

```diff
+ We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-23 23:39 UTC | [Critical incident: Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5](https://rewindex.com/change/i735fd0dfe8e3ef.md) | outage |
| 2026-10-24 00:04 UTC | Incident updated: Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5 (this change) | Normal progress |
| 2026-10-24 00:13 UTC | [Incident updated: Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5](https://rewindex.com/change/r478a76f29dd22e.md) | Normal progress |

Previous: [change](https://rewindex.com/change/i735fd0dfe8e3ef.md) · Next: [change](https://rewindex.com/change/r478a76f29dd22e.md) · All Anthropic changes: [timeline](https://rewindex.com/company/anthropic/changes.md)
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Canonical: https://rewindex.com/change/r922de7a570d14f · Markdown: https://rewindex.com/change/r922de7a570d14f.md · JSON: https://rewindex.com/api/v1/changes/r922de7a570d14f · Generated 2026-10-24T11:03:57.077Z