Major impactResolvedAI/ML

Claude outage: Elevated errors across many models

Claude reported this major-impact incident on its official status page on Aug 4, 2026, 20:48 UTC. It was resolved after 1h 11m.

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Aug 4, 2026, 20:48 UTC
started
Aug 4, 2026, 21:59 UTC
resolved
1h 11m
duration
Major
impact

Affected components

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

Timeline

updates from Claude's status page ↗
  1. resolvedAug 4, 2026, 21:59 UTC

    This issue has been resolved.

  2. investigatingAug 4, 2026, 21:04 UTC

    We have identified an issue which resulted in some users experiencing issues when attempting to log into Anthropic services, including Claude.ai and Claude Code via oAuth. Additionally, some users saw errors when making requests to models. At this time, we have seen success rates recover and are monitoring closely to ensure there are no further issues.

  3. investigatingAug 4, 2026, 20:48 UTC

    We are currently investigating this issue.

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: Elevated errors on Claude Sonnet 5 (Aug 4, 2026)Next: Degraded performance of multiple models (Aug 5, 2026) →
Claude outage on Aug 4, 2026: Elevated errors across many models · APIStatus.watch