Anthropic: Elevated errors for Claude Opus 5.5
Affected components: claude.aiClaude API - api.anthropic.comClaude CodeClaude Cowork
Timeline of updates
- investigating
We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.
- resolved
The issue affecting Claude Opus 5.5 has been resolved. Impact occurred from 17:23 PT on October 23 / 00:23 UTC on October 24 to 17:34 PT on October 23 / 00:34 UTC on October 24.
Changes Rewindex caught on this incident
- Major incident: Elevated errors for Claude Opus 5.5
- Incident updated: Elevated errors for Claude Opus 5.5
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert.
How the archive is checked, and what it cannot prove.
Rewindex captured this after the last checkpoint; the next run () commits it.
Impact, status and times are the vendor’s own, as last archived. View on status.claude.com (opens in new tab).