Anthropic: claude.ai and Sonnet 4 errors
Timeline of updates
- resolved
An issue affecting some claude.ai users of Sonnet 4 giving a 'conversation not found' error, has been resolved. All systems are now operating normally. We apologize for any inconvenience caused.
From Anthropic’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on status.anthropic.com (opens in new tab).
Cite this
Status incident (vendor impact label: none) posted by Anthropic, started 2025-09-28 14:06 UTC, resolved after 0 min, 1 update(s).
- Title
- claude.ai and Sonnet 4 errors
- Vendor
- Anthropic
- Date
- URL
- https://rewindex.com/company/anthropic/incidents/ht5r3583n1cs
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