# Anthropic: Elevated error rates on Claude Opus and Sonnet 4.6

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-03-21 00:07 UTC · Resolved: 2026-03-21 01:42 UTC · Duration: 1.6 h
- Updates: 1
- [Vendor status page: https://status.anthropic.com/incidents/tj7zxr47cfx6](https://status.anthropic.com/incidents/tj7zxr47cfx6)
- [Company: Anthropic](https://rewindex.com/company/anthropic.md)

## Timeline of updates

- **resolved** 2026-03-21 01:42 UTC: This incident has been resolved.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._


---
Canonical: https://rewindex.com/company/anthropic/incidents/tj7zxr47cfx6 · Markdown: https://rewindex.com/company/anthropic/incidents/tj7zxr47cfx6.md · JSON: https://rewindex.com/api/v1/companies/anthropic/incidents/tj7zxr47cfx6 · Generated 2026-10-18T11:46:12.538Z