Recorded 23 Oct 2026 at 23:55 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.
Service incidentAnthropic (Claude)
Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
What it said
- Observed state
- Ongoing
- Stage
- Monitoring
- Posted
- 23 Oct 2026 23:37 UTC
Recorded links
What changed
First observed 23 Oct 2026- 23 Oct 2026 · 23:55:15 UTC StageIdentified → Monitoring
- 23 Oct 2026 · 23:55:15 UTC SummaryWe have identified the cause of elevated errors on requests to Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5, as well as fast mode requests to Opus 5.5 and are working on a fix. We will provide an update as soon as possible. → We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
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