Changes / Claude / Elevated errors for Claude Fable 5
Claude: Major incident: Elevated errors for Claude Fable 5
Summary
Claude reported elevated errors for Claude Fable 5 affecting claude.ai, with major impact. The incident started at 2026-08-14 23:57 UTC and was resolved at 2026-08-15 00:27 UTC (30 min). The resolution update separately stated customer impact occurred from 20:00 Aug 14, 2026 to 00:11 Aug 15, 2026 UTC.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: Elevated errors for Claude Fable 5
Before: not present
After: major
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After: resolved
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After: 2026-08-14 23:57 UTC
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After: 2026-08-15 00:27 UTC
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After: claude.ai
Before: not present
After: We have identified the cause of elevated errors on requests to Claude Fable 5 and are working on a fix. We will provide an update as soon as possible.
Before: not present
After: We have identified the cause of the issue affecting claude.ai and are working on a fix. We will provide an update as soon as possible.
Before: not present
After: We have identified the cause of the issue affecting Claude services and are working on a fix. We will provide an update as soon as possible.
Before: not present
After: The issue affecting Claude services has been resolved. Impact occurred from 20:00 Aug 14, 2026 to 00:11 Aug 15 , 2026 UTC.
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: Elevated errors for Claude Fable 5 (this change) Claude reported elevated errors for Claude Fable 5 affecting claude.ai, with major impact. The incident started at 2026-08-14 23:57 UTC and was resolved at 2026-08-15 00:27 UTC (30 min). The resolution update separately stated customer impact occurred from 20:00 Aug 14, 2026 to 00:11 Aug 15, 2026 UTC. | Major incident |