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Anthropic Incident History

Operational

anthropic.com ↗6 components

checked Sep 20, 2026 4:54 PM UTC · Anthropic's official status page

Anthropic is up and running.

Anthropic is currently operational with all systems functioning normally.

All components operational

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Anthropic incident history

26 reports published by Anthropic in the last 30 days

When Anthropic breaks, it is typically resolved in 48m — median across 85 resolved incidents over 90 days.

September 16, 2026

Issues with Google Play subscriptions

Last update

  1. resolvedSep 16 · 16:51 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

September 15, 2026

Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1

Last update

  1. resolvedSep 15 · 11:14 UTC

    A fix has been deployed for Claude Mythos 5.1 and Claude Fable 5.1 and we are monitoring to ensure it has resolved the issue.

Reported by Anthropic on their status page.

Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1

Last update

  1. ResolvedSep 15 · 11:14 UTC

    A fix has been deployed for Claude Mythos 5.1 and Claude Fable 5.1 and we are monitoring to ensure it has resolved the issue.

Reported by Anthropic on their status page.

September 11, 2026

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1

Last update

  1. resolvedSep 11 · 14:37 UTC

    The issue affecting Claude services has been resolved. Impact occurred from 13:57 to 14:20 UTC

Reported by Anthropic on their status page.

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1

Last update

  1. ResolvedSep 11 · 14:37 UTC

    The issue affecting Claude services has been resolved. Impact occurred from 13:57 to 14:20 UTC

Reported by Anthropic on their status page.

September 10, 2026

Elevated latency on the Claude API for some users

Last update

  1. resolvedSep 10 · 23:24 UTC

    The issue affecting Claude services has been mitigated.

Reported by Anthropic on their status page.

Elevated latency on the Claude API for some users

Last update

  1. ResolvedSep 10 · 23:24 UTC

    The issue affecting Claude services has been mitigated.

Reported by Anthropic on their status page.

Degraded functionality for Claude Cowork on Windows

Last update

  1. resolvedSep 14 · 19:14 UTC

    This issue has been resolved. Microsoft has released a September 14 Windows update that fixes it: https://support.microsoft.com/en-us/servicing/os/windows-11/2026/09/kb5129195-windows-11-24h2-25h2-security-update

Reported by Anthropic on their status page.

Degraded functionality for Claude Cowork on Windows

Last update

  1. ResolvedSep 14 · 19:14 UTC

    This issue has been resolved. Microsoft has released a September 14 Windows update that fixes it: https://support.microsoft.com/en-us/servicing/os/windows-11/2026/09/kb5129195-windows-11-24h2-25h2-security-update

Reported by Anthropic on their status page.

September 3, 2026

Elevated errors for multiple models

Last update

  1. resolvedSep 3 · 16:23 UTC

    The issue affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 has been resolved. Impact has ended as of 9:16 PT / 16:16 UTC.

Reported by Anthropic on their status page.

Elevated errors for multiple models

Last update

  1. ResolvedSep 3 · 16:23 UTC

    The issue affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 has been resolved. Impact has ended as of 9:16 PT / 16:16 UTC.

Reported by Anthropic on their status page.

Elevated errors for Claude Sonnet 5

Last update

  1. resolvedSep 3 · 12:56 UTC

    This incident has been resolved.

Reported by Anthropic on their status page.

Elevated errors for Claude Sonnet 5

Last update

  1. ResolvedSep 3 · 12:56 UTC

    This incident has been resolved.

Reported by Anthropic on their status page.

September 2, 2026

Elevated errors for Claude Sonnet 5

Last update

  1. resolvedSep 2 · 21:44 UTC

    The issue affecting Claude Sonnet 5 has been resolved. Impact occurred from 2:05pm PT / 21:05 UTC to 2:19pm PT / 21:19 UTC.

Reported by Anthropic on their status page.

September 1, 2026

Delays in credit purchases

Last update

  1. resolvedSep 2 · 01:24 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Delays in credit purchases

Last update

  1. ResolvedSep 2 · 01:24 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Degraded performance on platform.claude.com and Claude for Microsoft Office 365

Last update

  1. resolvedSep 1 · 18:07 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Degraded performance on platform.claude.com and Claude for Microsoft Office 365

Last update

  1. ResolvedSep 1 · 18:07 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Degraded performance on Claude for Microsoft Office 365

Last update

  1. resolvedSep 1 · 16:22 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Degraded performance on Claude for Microsoft Office 365

Last update

  1. ResolvedSep 1 · 16:22 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

August 31, 2026

Degraded performance on claude.ai and Claude Code

Last update

  1. resolvedAug 31 · 20:36 UTC

    The issue affecting Claude Code has been resolved. Impact occurred from 16∶55 to 19∶16 UTC.

Reported by Anthropic on their status page.

Degraded performance on claude.ai

Last update

  1. resolvedAug 31 · 17:52 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

August 28, 2026

Elevated errors on Claude Code and Claude Cowork

Last update

  1. resolvedAug 28 · 20:21 UTC

    The issue affecting Claude Cowork and Claude Code on the web has been resolved.

Reported by Anthropic on their status page.

August 24, 2026

Issues logging into Claude.ai

Last update

  1. resolvedAug 24 · 20:26 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Errors logging into Claude.ai

Last update

  1. resolvedAug 24 · 17:16 UTC

    This issue has been resolved.

Reported by Anthropic on their status page.

Elevated errors for multiple models

Last update

  1. resolvedAug 24 · 08:30 UTC

    This issue has been resolved. From 9:50pm PT / 04:50 UTC through 00:36am PT / 07:36 UTC, users saw elevated errors on requests to Claude models, including Claude Opus 5 and Fable 5.

Reported by Anthropic on their status page.