Resolved · lasted 7 h

Claude outage on August 12

Reports for Claude jumped to 491 an hour and stayed high for 7 h.

Started
1:00 PM
August 12, 2026 · UTC
Back to normal
8:00 PM
7 h later
Peak
491/hr
15× normal
Anthropic’s incident
4 h 17 min
Degraded performance for multiple models

Reports during the outage

11:00 AM9:50 PM UTC

What Anthropic said

status.claude.com
Resolved1:50 – 6:07 PM · 4 h 17 min

Degraded performance for multiple models

  1. Resolved · 6:07 PM

    This issue has been resolved.

  2. Identified · 5:28 PM

    We are continuing to work to resolve an issue resulting in slightly elevated errors on requests to Claude Fable 5. We will provide an update as soon as possible.

  3. Identified · 4:10 PM

    We have identified an issue which resulted in errors across multiple models. At this time, errors are primarily impacting Claude Fable 5 and we are working to fully resolve these issues.

  4. Investigating · 1:50 PM

    We are investigating elevated errors on requests to multiple models. We will provide an update as soon as possible.

Anthropic posted its first update 50 min after reports started rising.

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