🤖

Claude API

🚨 Major Outage

by Anthropic

Claude API (Opus, Sonnet, Haiku)

Checked just now
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📉 Downtime History

20 incidents

Elevated errors affecting the Microsoft 365 connector

Major Resolved

Nov 13 , 21:49 UTC Resolved - This incident has been resolved. From 08:03 PT / 16:03 UTC on November 12 to 08:40 PT / 16:40 UTC on November 13, mail, calendar and search tools in the Microsoft 365 ...

Started: Nov 12, 2026 at 17:52 UTC Ended: Nov 13, 2026 at 21:49 UTC · Duration: 1 day

Elevated errors on Fable 52 and Mythos 52

Major Resolved

Nov 10 , 21:47 UTC Resolved - Overloaded errors on Fable 5.2 and Mythos 5.2 for four minutes. Incident has been mitigated.

Started: Nov 10, 2026 at 21:47 UTC Ended: Nov 10, 2026 at 21:47 UTC · Duration: less than a minute

Degraded performance for Claude Fable 5.1

Major Ongoing

Nov 8 , 08:39 UTC Monitoring - A fix has been deployed for Claude Fable 5.1 and we are monitoring for recovery. Nov 8 , 08:28 UTC Investigating - We are investigating elevated errors on requests to...

Started: Nov 08, 2026 at 08:28 UTC

Elevated errors affecting the Google Calendar connector

Major Ongoing

Oct 28 , 19:47 UTC Monitoring - We are seeing recovery for errors affecting the Google Calendar connector, and error rates have returned to normal levels. We are continuing to monitor with our upst...

Started: Oct 28, 2026 at 16:19 UTC

Elevated errors affecting the Gmail connector

Major Ongoing

Oct 28 , 04:00 UTC Update - We are investigating elevated errors when searching and reading email with the Gmail connector. This issue does not affect other connectors. Oct 28 , 03:59 UTC Investiga...

Started: Oct 28, 2026 at 04:06 UTC

Elevated errors for Claude Sonnet 5.5

Major Resolved

Oct 27 , 09:56 UTC Resolved - The issue affecting Claude services has been resolved. Oct 27 , 09:38 UTC Monitoring - A fix has been deployed for the issue affecting Claude services and we are monit...

Started: Oct 27, 2026 at 09:14 UTC Ended: Oct 27, 2026 at 09:56 UTC · Duration: 42 minutes

Elevated errors for Claude Fable 5.1

Major Resolved

Oct 25 , 08:49 UTC Resolved - The issue affecting Claude services has been resolved. Impact occurred from 01:08 PT / 08:08 UTC to 01:29 PT / 08:29 UTC. Oct 25 , 08:30 UTC Monitoring - A fix has bee...

Started: Oct 25, 2026 at 08:17 UTC Ended: Oct 25, 2026 at 08:49 UTC · Duration: 32 minutes

Elevated errors for multiple models

Major Resolved

Oct 25 , 07:53 UTC Resolved - The issue affecting Claude services has been resolved. Impact occurred from 23:05 PT on October 24 / 06:05 UTC on October 25 to 23:35 PT on October 24 / 06:35 UTC on O...

Started: Oct 25, 2026 at 06:14 UTC Ended: Oct 25, 2026 at 07:53 UTC · Duration: about 2 hours

Elevated errors for other Claude models

Major Resolved

Oct 24 , 05:53 UTC Resolved - The issue affecting Claude services has been resolved. Impact occurred from 22:00 PT on October 23 / 05:00 UTC on October 24 to 22:35 PT on October 23 / 05:35 UTC on O...

Started: Oct 24, 2026 at 05:24 UTC Ended: Oct 24, 2026 at 05:53 UTC · Duration: 29 minutes

Elevated errors for Claude Opus 5.5

Major Resolved

Oct 24 , 00:37 UTC Resolved - The issue affecting Claude Opus 5.5 has been resolved. Impact occurred from 17:23 PT on October 23 / 00:23 UTC on October 24 to 17:34 PT on October 23 / 00:34 UTC on O...

Started: Oct 24, 2026 at 00:31 UTC Ended: Oct 24, 2026 at 00:37 UTC · Duration: 6 minutes

Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5

Major Resolved

Oct 24 , 00:11 UTC Resolved - The issue affecting Claude models has been resolved. Impact occurred from 16:28 PT / 23:28 UTC on October 23 to 16:59 PT / 23:59 UTC on October 23. Oct 23 , 23:54 UTC ...

Started: Oct 23, 2026 at 23:39 UTC Ended: Oct 24, 2026 at 00:11 UTC · Duration: 32 minutes

Elevated errors affecting Connectors

Major Ongoing

Oct 22 , 03:50 UTC Investigating - We are investigating elevated errors affecting connectors. We will provide an update as soon as possible.

Started: Oct 22, 2026 at 03:50 UTC

Degraded performance for Claude Fable 5

Major Resolved

Oct 21 , 20:29 UTC Resolved - The issue affecting other Claude models has been resolved. Oct 21 , 19:49 UTC Investigating - We are investigating elevated errors on requests to Claude Fable 5. We wi...

Started: Oct 21, 2026 at 19:49 UTC Ended: Oct 21, 2026 at 20:29 UTC · Duration: 40 minutes

Elevated errors on platform.claude.com

Major Resolved

Oct 13 , 18:00 UTC Resolved - This issue has been resolved. Oct 7 , 21:44 UTC Monitoring - We've mitigated the errors loading usage data on platform.claude.com and in the Admin API usage report. Wh...

Started: Oct 07, 2026 at 13:25 UTC Ended: Oct 13, 2026 at 18:00 UTC · Duration: 6 days

Elevated errors loading usage data on platform.claude.com

Major Resolved

Oct 7 , 02:33 UTC Resolved - This incident has been resolved. From 17:00 PT on October 6 / 00:00 UTC on October 7 to 18:40 PT on October 6 / 01:40 UTC on October 7, many requests to load usage data...

Started: Oct 07, 2026 at 01:20 UTC Ended: Oct 07, 2026 at 02:33 UTC · Duration: about 1 hour

Elevated errors for Claude Opus 5.5

Major Resolved

Oct 6 , 12:43 UTC Resolved - The issue affecting Claude Opus 5.5 has been resolved. Oct 6 , 12:37 UTC Identified - We have identified the cause of elevated errors on requests to Claude Opus 5.5 and...

Started: Oct 06, 2026 at 12:24 UTC Ended: Oct 06, 2026 at 12:43 UTC · Duration: 18 minutes

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1

Major Resolved

Oct 5 , 13:21 UTC Resolved - The issue affecting Claude Mythos 5.1 and Claude Fable 5.1 has been resolved. Impact occurred from 05:40 PT / 12:40 UTC to 06:10 PT / 13:10 UTC. Oct 5 , 13:05 UTC Inves...

Started: Oct 05, 2026 at 13:05 UTC Ended: Oct 05, 2026 at 13:21 UTC · Duration: 16 minutes

Degraded performance on the Claude API and platform.claude.com

Major Ongoing

Oct 1 , 16:20 UTC Investigating - We are investigating delays in credit purchases being reflected in account balances, resulting in some requests failing for insufficient credit balance. We will pr...

Started: Oct 01, 2026 at 16:20 UTC

Elevated errors for multiple models

Major Resolved

Sep 22 , 02:35 UTC Resolved - This issue has been resolved. Impact occurred from 5:50pm PT / 00:50 UTC to 7:10pm PT / 02:10 UTC. Sep 22 , 02:11 UTC Monitoring - We have seen success rates return to...

Started: Sep 22, 2026 at 00:57 UTC Ended: Sep 22, 2026 at 02:35 UTC · Duration: about 2 hours

Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1

Major Resolved

Sep 15 , 11:14 UTC Resolved - 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. Sep 15 , 10:50 UTC Monitoring - A fix has...

Started: Sep 15, 2026 at 09:52 UTC Ended: Sep 15, 2026 at 11:14 UTC · Duration: about 1 hour

📋 Sick Notes

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