# Elevated errors for Claude Opus 5.5

- Provider: [Anthropic](https://down.guide/anthropic)
- Level: confirmed
- Impact: Partial outage
- lasted 19m
- started 2026-10-06 12:24 UTC
- claude.ai, Claude API (api.anthropic.com), Claude Code +1
- id: DWN-9074d92566
- Official page: https://stspg.io/bzc81gbv1b99

## Root cause
> We have identified the cause of elevated errors on requests to Claude Opus 5.

[Postmortem](https://stspg.io/bzc81gbv1b99)

## Updates from Anthropic
### 2026-10-06 12:24 UTC: investigating
We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.

### 2026-10-06 12:37 UTC: identified
We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.

### 2026-10-06 12:43 UTC: resolved
The issue affecting Claude Opus 5.5 has been resolved.

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