Minor impactResolvedAI/ML

Claude incident: Degraded performance for multiple models

Claude reported this minor-impact incident on its official status page on Aug 12, 2026, 13:50 UTC. It was resolved after 4h 17m.

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Aug 12, 2026, 13:50 UTC
started
Aug 12, 2026, 18:07 UTC
resolved
4h 17m
duration
Minor
impact

Affected components

  • Claude API (api.anthropic.com)
  • Claude Code
  • Claude Cowork
  • claude.ai

Timeline

updates from Claude's status page ↗
  1. resolvedAug 12, 2026, 18:07 UTC

    This issue has been resolved.

  2. identifiedAug 12, 2026, 17:28 UTC

    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. identifiedAug 12, 2026, 16:10 UTC

    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. investigatingAug 12, 2026, 13:50 UTC

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

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Claude'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.

How often does Claude have incidents?

Claude reported 85 incidents in the last 90 days, 32 of them major or critical. A typical incident lasted 1h 7m. See Claude's uptime and incident history

← Previous: Degraded performance for Claude Opus 5 (Aug 5, 2026)Next: Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5 (Aug 13, 2026) →
Claude incident on Aug 12, 2026: Degraded performance for multiple models · APIStatus.watch