# Anthropic: [retroactive] Elevated errors on Claude Haiku 3.5 and Claude Haiku 3

> Anthropic status incident “[retroactive] Elevated errors on Claude Haiku 3.5 and Claude Haiku 3” on 2025-09-20: impact minor (vendor’s label), 4 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/anthropic/incidents/f3p8ct8rb146
Last updated: 2025-09-20T10:41:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-09-20 10:37 UTC · Resolved: 2025-09-20 10:41 UTC · Duration: 4 min
- Updates: 1
- [Vendor status page: https://status.anthropic.com/incidents/f3p8ct8rb146](https://status.anthropic.com/incidents/f3p8ct8rb146)
- [Company: Anthropic](https://rewindex.com/company/anthropic.md)

## Timeline of updates

- **resolved** 2025-09-20 10:41 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._

## Cite this

Status incident (vendor impact label: minor) posted by Anthropic, started 2025-09-20 10:37 UTC, resolved after 4 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/anthropic/incidents/f3p8ct8rb146
- Citation: Anthropic, “[retroactive] Elevated errors on Claude Haiku 3.5 and Claude Haiku 3” (2025-09-20 10:37 UTC). Archived by Rewindex: https://rewindex.com/company/anthropic/incidents/f3p8ct8rb146 (CC BY 4.0).
- Markdown link: `[Anthropic: retroactive Elevated errors on Claude Haiku 3.5 and Claude Haiku 3 (2025-09-20)](https://rewindex.com/company/anthropic/incidents/f3p8ct8rb146)`


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Canonical: https://rewindex.com/company/anthropic/incidents/f3p8ct8rb146 · Markdown: https://rewindex.com/company/anthropic/incidents/f3p8ct8rb146.md · JSON: https://rewindex.com/api/v1/companies/anthropic/incidents/f3p8ct8rb146 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:01:04.765Z