# Claude: Elevated errors on Claude 4 Sonnet

- Impact (vendor’s label): critical
- Status: resolved
- Started: 2025-07-21 07:12 UTC · Resolved: 2025-07-21 08:57 UTC · Duration: 1.8 h
- Updates: 1
- [Vendor status page: https://status.claude.com/incidents/5xh2zd6jrklj](https://status.claude.com/incidents/5xh2zd6jrklj)
- [Company: Claude](https://rewindex.com/company/claude.md)

## Timeline of updates

- **resolved** 2025-07-21 08:57 UTC: As of 08:52 UTC we have full recovery for the Claude 4 Sonnet model

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


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Canonical: https://rewindex.com/company/claude/incidents/5xh2zd6jrklj · Markdown: https://rewindex.com/company/claude/incidents/5xh2zd6jrklj.md · JSON: https://rewindex.com/api/v1/companies/claude/incidents/5xh2zd6jrklj · Generated 2026-10-18T09:58:34.090Z