Anthropic outage: Elevated errors for Claude Fable 5

Affected components

• claude.ai

1. resolvedAug 15, 2026, 00:27 UTC

   The issue affecting Claude services has been resolved. Impact occurred from 20:00 Aug 14, 2026 to 00:11 Aug 15 , 2026 UTC.

2. identifiedAug 15, 2026, 00:21 UTC

   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.

3. identifiedAug 15, 2026, 00:20 UTC

   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.

4. identifiedAug 14, 2026, 23:57 UTC

   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.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Anthropic's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Elasticsearch: Increased error rates for microsoft-multilingual-e5-largeMajor · Aug 13, 2026, 08:32 UTC
• Elasticsearch: Elasticsearch 9.5.1: false-positive matches in certain boolean queriesMajor · Aug 14, 2026, 09:22 UTC
• OVHcloud: [GRA5/GRA9/GRA11][Compute - Instance] - Some instances incident notificationMajor · Aug 14, 2026, 15:26 UTC
• OVHcloud: [GRA11][Storage] - File storage incident notificationMajor · Aug 14, 2026, 16:07 UTC
• Akamai: Connection drops and increased latency in MiamiMinor · Aug 13, 2026, 19:31 UTC
• Supabase: 401 errors due to JWT rejectionsMinor · Aug 14, 2026, 02:23 UTC

How often does Anthropic have incidents?

Anthropic reported 47 incidents in the last 90 days, 21 of them major or critical. A typical incident lasted 1h 4m. See Anthropic's uptime and incident history