# Anthropic: Elevated errors for Claude Opus 5.5

- Impact (vendor’s label): major
- Status: resolved · edited after publishing
- Started: 2026-10-24 00:31 UTC · Resolved: 2026-10-24 00:37 UTC · Duration: 6 min
- Updates: 2 · Affected components: claude.ai, Claude API - api.anthropic.com, Claude Code, Claude Cowork
- [Vendor status page: https://status.claude.com/incidents/3cqf3pmlnr96](https://status.claude.com/incidents/3cqf3pmlnr96)
- [Company: Anthropic](https://rewindex.com/company/anthropic.md)

## Summary

Anthropic reported a major incident involving elevated errors on Claude Opus 5.5 requests, affecting claude.ai, Claude API - api.anthropic.com, Claude Code, and Claude Cowork. It started at 2026-10-24 00:31 UTC and was still open when archived, open for 0 min at the last update; Anthropic was investigating, with no cause or fix stated. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-10-24 00:31 UTC: We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.
- **resolved** 2026-10-24 00:37 UTC: 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.

## Rewindex changes for this incident

- 2026-10-24 00:31 UTC: [Major incident: Elevated errors for Claude Opus 5.5](https://rewindex.com/change/i0ebfa6340616af.md)
- 2026-10-24 00:43 UTC: [Incident updated: Elevated errors for Claude Opus 5.5](https://rewindex.com/change/r7ad0b63c222060.md)


---
Canonical: https://rewindex.com/company/anthropic/incidents/3cqf3pmlnr96 · Markdown: https://rewindex.com/company/anthropic/incidents/3cqf3pmlnr96.md · JSON: https://rewindex.com/api/v1/companies/anthropic/incidents/3cqf3pmlnr96 · Generated 2026-10-24T11:07:27.744Z