Anthropic (Claude) Outage History

Past incidents and downtime events

Complete history of Anthropic (Claude) outages, incidents, and service disruptions. Showing 50 most recent incidents.

← Back to Anthropic (Claude) current status

February 2026(46 incidents)

minorresolvedFeb 24, 12:22 PM — Resolved Feb 24, 01:26 PM

Elevated errors on Claude Sonnet 4.6

3 updates

resolvedFeb 24, 01:26 PM

As of 5:10 PT / 13:10 UTC errors are back to baseline.

investigatingFeb 24, 01:00 PM

Previously this incident named Sonnet 4.5 as the affected model. This is a mistake and the model affected is Sonnet 4.6. Sorry.

investigatingFeb 24, 12:22 PM

We are currently investigating this issue.

minorresolvedFeb 17, 08:15 PM — Resolved Feb 24, 11:51 AM

Intermittent errors in skills-related functionality

4 updates

resolvedFeb 24, 11:51 AM

This incident has been resolved.

identifiedFeb 22, 10:45 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 18, 12:30 AM

We are continuing to investigate this issue.

investigatingFeb 17, 08:15 PM

We are seeing periods of high error rates in a skills-related service used by claude.ai, Claude Desktop app, and our API.

minorresolvedFeb 24, 07:22 AM — Resolved Feb 24, 07:41 AM

Elevated errors on Claude Sonnet 4.6

2 updates

resolvedFeb 24, 07:41 AM

As of 23:27 PT / 7:27 UTC the errors are back to the baseline.

investigatingFeb 24, 07:22 AM

We are currently investigating this issue.

majorresolvedFeb 23, 02:06 PM — Resolved Feb 23, 03:59 PM

Elevated errors on Claude Haiku 4.5

5 updates

resolvedFeb 23, 03:59 PM

This incident has been resolved.

monitoringFeb 23, 02:57 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 23, 02:54 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 23, 02:07 PM

We are continuing to investigate this issue.

investigatingFeb 23, 02:06 PM

We are currently investigating this issue.

minorresolvedFeb 23, 11:21 AM — Resolved Feb 23, 11:36 AM

Elevated errors on Claude Sonnet 4.5

3 updates

resolvedFeb 23, 11:36 AM

As of 03:26 PT / 11:26 UTC the error rate has now reduced to the baseline.

identifiedFeb 23, 11:29 AM

The issue has been identified and a fix is being implemented.

investigatingFeb 23, 11:21 AM

We are currently investigating this issue.

minorresolvedFeb 23, 08:00 AM — Resolved Feb 23, 09:58 AM

Elevated errors on Claude Opus 4.6

4 updates

resolvedFeb 23, 09:58 AM

As of 01:30 PT / 09:30 UTC the error rates have returned to baseline

monitoringFeb 23, 09:39 AM

A fix has been implemented and we are monitoring the results.

identifiedFeb 23, 08:13 AM

The issue has been identified and a fix is being implemented.

investigatingFeb 23, 08:00 AM

We are currently investigating this issue.

minorresolvedFeb 21, 10:16 PM — Resolved Feb 21, 11:11 PM

Opus 4.6 elevated error rates

2 updates

resolvedFeb 21, 11:11 PM

This incident has been resolved.

investigatingFeb 21, 10:16 PM

We are currently investigating this issue.

minorresolvedFeb 21, 05:00 AM — Resolved Feb 21, 05:00 AM

Some Windows users unable to use Cowork

1 update

resolvedFeb 21, 08:16 PM

Some Windows users on v1.1.3918 of Desktop saw a "Virtualization is not enabled" message and were not able to use Cowork. Resolved in v1.1.3963

minorresolvedFeb 20, 07:42 PM — Resolved Feb 20, 08:17 PM

Sonnet 4 errors

3 updates

resolvedFeb 20, 08:17 PM

This incident has been resolved.

identifiedFeb 20, 08:10 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 20, 07:42 PM

We are currently investigating this issue.

minorresolvedFeb 20, 02:37 PM — Resolved Feb 20, 03:37 PM

Elevated errors on Claude Sonnet 4.5

4 updates

resolvedFeb 20, 03:37 PM

This incident has been resolved.

monitoringFeb 20, 03:21 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 20, 02:47 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 20, 02:37 PM

We are currently investigating this issue.

majorresolvedFeb 19, 03:30 PM — Resolved Feb 19, 04:03 PM

Claude's responses not appearing in Cowork

3 updates

resolvedFeb 19, 04:14 PM

This incident has been resolved.

investigatingFeb 19, 03:36 PM

We are continuing to investigate this issue.

investigatingFeb 19, 03:30 PM

We are currently investigating this issue.

majorresolvedFeb 18, 03:35 PM — Resolved Feb 18, 06:28 PM

Elevated error rates across multiple models

4 updates

resolvedFeb 18, 06:28 PM

This incident has been resolved.

monitoringFeb 18, 03:59 PM

We are continuing to monitor for any further issues.

monitoringFeb 18, 03:47 PM

A fix has been implemented and we are monitoring the results.

investigatingFeb 18, 03:36 PM

We are currently investigating this issue.

minorresolvedFeb 18, 01:20 PM — Resolved Feb 18, 03:35 PM

Elevated errors on Claude Sonnet 4.6

4 updates

resolvedFeb 18, 03:35 PM

This incident has been resolved.

monitoringFeb 18, 02:22 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 18, 01:29 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 18, 01:20 PM

We are currently investigating this issue.

minorresolvedFeb 18, 10:49 AM — Resolved Feb 18, 12:09 PM

Elevated errors on Claude Opus 4.5

4 updates

resolvedFeb 18, 12:09 PM

This incident has been resolved.

monitoringFeb 18, 11:56 AM

We are continuing to monitor for any further issues.

monitoringFeb 18, 11:42 AM

A fix has been implemented and we are monitoring the results.

identifiedFeb 18, 10:49 AM

The issue has been identified and a fix is being implemented.

majorresolvedFeb 18, 03:23 AM — Resolved Feb 18, 04:07 AM

Cowork new task page not loading

3 updates

resolvedFeb 18, 04:07 AM

This incident has been resolved.

identifiedFeb 18, 03:38 AM

The issue has been identified and a fix is being implemented.

investigatingFeb 18, 03:23 AM

We are currently investigating this issue.

minorresolvedFeb 17, 11:56 PM — Resolved Feb 18, 12:10 AM

CSS errors on Claude.ai

4 updates

resolvedFeb 18, 12:10 AM

This incident has been resolved.

monitoringFeb 17, 11:59 PM

We are continuing to monitor for any further issues.

monitoringFeb 17, 11:59 PM

A fix has been implemented and we are monitoring the results.

investigatingFeb 17, 11:56 PM

We are currently investigating this issue.

noneresolvedFeb 17, 07:20 PM — Resolved Feb 17, 09:05 PM

opus 4.6 elevated errors

3 updates

resolvedFeb 17, 09:05 PM

This incident has been resolved.

monitoringFeb 17, 08:16 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 17, 07:20 PM

The issue has been identified and a fix is being implemented.

minorresolvedFeb 17, 03:26 PM — Resolved Feb 17, 08:04 PM

New user-created skills are not working in Claude.ai

2 updates

resolvedFeb 17, 08:04 PM

This incident has been resolved.

investigatingFeb 17, 03:26 PM

We are currently investigating an issue with new user-created skills on Claude.ai. Our team is actively working to identify the root cause.

minorresolvedFeb 17, 06:01 PM — Resolved Feb 17, 07:02 PM

Elevated errors on Claude Sonnet 4.5

4 updates

resolvedFeb 17, 07:02 PM

This incident has been resolved.

monitoringFeb 17, 06:38 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 17, 06:26 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 17, 06:01 PM

We are currently investigating this issue.

minorresolvedFeb 17, 01:13 PM — Resolved Feb 17, 04:39 PM

Elevated errors on Claude Opus 4.6

6 updates

resolvedFeb 17, 04:39 PM

This incident has been resolved.

monitoringFeb 17, 04:31 PM

We are continuing to monitor for any further issues.

monitoringFeb 17, 03:39 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 17, 02:43 PM

We are continuing to work on a fix for this issue.

identifiedFeb 17, 01:45 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 17, 01:13 PM

We are currently investigating this issue.

minorresolvedFeb 16, 04:05 PM — Resolved Feb 16, 07:15 PM

Elevated errors on Claude Opus 4.6

4 updates

resolvedFeb 16, 07:15 PM

This incident has been resolved.

monitoringFeb 16, 04:55 PM

A fix has been implemented and we are monitoring the results.

identifiedFeb 16, 04:36 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 16, 04:05 PM

We are currently investigating this issue. Our team is actively working to identify the root cause.

minorresolvedFeb 16, 02:32 PM — Resolved Feb 16, 03:06 PM

Elevated errors on Opus 4.6

3 updates

resolvedFeb 16, 03:06 PM

This incident has been resolved.

monitoringFeb 16, 02:39 PM

A fix has been implemented and we are monitoring the results.

investigatingFeb 16, 02:32 PM

We are currently investigating this issue.

nonepostmortemFeb 14, 04:13 PM — Resolved Feb 14, 04:39 PM

Issues with Code Execution Tool

5 updates

postmortemFeb 14, 04:44 PM

In the process of rolling out a feature, we made a code change that went out at approximately 2026/02/14 06:30 UTC that resulted in errors for API requests using the Code Execution tool. This introduced an incompatibility between two services when one was rolled out but not the other. We have since identified the issue, have resolved it, and will be putting in automatic alerts to auto-detect these incompatibilities going forawrd.

resolvedFeb 14, 04:39 PM

We have deployed a fix for Code Execution tool on the API.

monitoringFeb 14, 04:38 PM

We are continuing to monitor for any further issues.

monitoringFeb 14, 04:27 PM

We have identified the issue with the Code Execution tool and have rolled out a fix. We're monitoring to confirm resolution.

investigatingFeb 14, 04:13 PM

We're currently investigating an issue where API requests using the Code Execution Tool are erroring for users.

majorresolvedFeb 14, 07:27 AM — Resolved Feb 14, 08:44 AM

Elevated errors on Claude models

4 updates

resolvedFeb 14, 08:44 AM

This incident has been resolved.

monitoringFeb 14, 08:38 AM

A fix has been implemented and we are monitoring the results.

investigatingFeb 14, 07:31 AM

We are continuing to investigate this issue.

investigatingFeb 14, 07:27 AM

We are currently investigating this issue.

minorresolvedFeb 13, 05:56 PM — Resolved Feb 13, 11:21 PM

MCP not working in Research in claude.ai

2 updates

resolvedFeb 13, 11:21 PM

This issue has been resolved.

investigatingFeb 13, 05:56 PM

We are currently investigating this issue.

minorresolvedFeb 13, 05:13 PM — Resolved Feb 13, 09:27 PM

Elevated errors on Opus 4.6 Fast Mode

2 updates

resolvedFeb 13, 09:27 PM

This incident has been resolved.

investigatingFeb 13, 05:13 PM

We are currently investigating this issue.

minorresolvedFeb 12, 02:18 PM — Resolved Feb 12, 03:17 PM

Elevated errors on Opus 4.6

3 updates

resolvedFeb 12, 03:17 PM

This incident has been resolved.

monitoringFeb 12, 02:45 PM

A fix has been implemented and we are monitoring the results.

investigatingFeb 12, 02:18 PM

We are currently investigating this issue.

minorresolvedFeb 11, 02:52 PM — Resolved Feb 11, 03:43 PM

Elevated errors on Claude Haiku 4.5

2 updates

resolvedFeb 11, 03:43 PM

This incident has been resolved.

investigatingFeb 11, 02:52 PM

We are currently investigating this issue.

minorresolvedFeb 11, 01:22 PM — Resolved Feb 11, 02:55 PM

Elevated errors on Claude Sonnet 4.5

3 updates

resolvedFeb 11, 02:55 PM

This incident has been resolved.

monitoringFeb 11, 01:44 PM

A fix has been implemented and we are monitoring the results.

investigatingFeb 11, 01:22 PM

We are currently investigating this issue. Our team is actively working to identify the root cause.

minorresolvedFeb 11, 08:21 AM — Resolved Feb 11, 08:37 AM

Elevated errors on Opus 4.6

3 updates

resolvedFeb 11, 08:37 AM

This incident has been resolved.

monitoringFeb 11, 08:31 AM

A fix has been implemented and we are monitoring the results.

investigatingFeb 11, 08:21 AM

We are currently investigating this issue.

noneresolvedFeb 10, 10:11 PM — Resolved Feb 11, 05:41 AM

Elevated errors on Opus 4.6 Fast Mode

3 updates

resolvedFeb 11, 05:41 AM

This incident has been resolved.

monitoringFeb 11, 02:51 AM

The issue has been mitigated.

investigatingFeb 10, 10:11 PM

We are currently investigating the issue.

minorresolvedFeb 10, 11:23 AM — Resolved Feb 10, 04:28 PM

Opus 4.6 Fast Mode small amount of errors

3 updates

resolvedFeb 10, 04:28 PM

This incident has been resolved.

identifiedFeb 10, 01:20 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 10, 11:23 AM

Starting at about 02:05 PST Opus 4.6 Fast Mode serves a small amount of errors. We are investigating.

minorresolvedFeb 7, 03:59 PM — Resolved Feb 7, 04:31 PM

Elevated errors on Claude models

3 updates

resolvedFeb 7, 04:31 PM

As of 16:27 UTC / 8:27 PT the incident has been resolved.

identifiedFeb 7, 04:08 PM

Starting with 15:15 UTC / 7:15 PT we've seen errors on our API for several models. We have identified the issue and are rolling out a fix.

investigatingFeb 7, 03:59 PM

We are currently investigating this issue.

noneresolvedFeb 6, 07:30 PM — Resolved Feb 6, 07:30 PM

Elevated error rates on claude.ai

1 update

resolvedFeb 6, 08:33 PM

This issue has been resolved.

minorresolvedFeb 5, 03:58 PM — Resolved Feb 5, 08:32 PM

Conversation compaction temporarily disabled on claude.ai

2 updates

resolvedFeb 5, 08:32 PM

This incident has been resolved.

identifiedFeb 5, 03:58 PM

The issue has been identified and a fix is being implemented.

majorresolvedFeb 4, 04:39 PM — Resolved Feb 4, 05:06 PM

Elevated errors on Claude models

3 updates

resolvedFeb 4, 05:06 PM

The outage between 16:20 UTC / 8:20 PT and 16:55 UTC / 8:55 PT has now been resolved.

identifiedFeb 4, 04:53 PM

The issue has been identified and a fix is being implemented.

investigatingFeb 4, 04:39 PM

We are currently investigating this issue.

majorresolvedFeb 4, 10:13 AM — Resolved Feb 4, 11:11 AM

Elevated errors on Claude Opus 4.5 and Sonnet 4.5

7 updates

resolvedFeb 4, 11:11 AM

The issue has been fully resolved. The timelines are: * 02:00 PT / 10:00 UTC to 02:35 PT / 10:35 UTC * 02:54 PT / 10:54 UTC to 03:01 PT / 11:01 UTC

monitoringFeb 4, 11:05 AM

A fix has been implemented and we are monitoring the results.

identifiedFeb 4, 10:59 AM

The issue has just reocurred.

monitoringFeb 4, 10:40 AM

A fix has been implemented and we are monitoring the results.

identifiedFeb 4, 10:37 AM

The issue has been identified and a fix is being implemented.

investigatingFeb 4, 10:18 AM

Sonnet 4.5 is also throwing errors.

investigatingFeb 4, 10:13 AM

We are currently investigating this issue.

minorresolvedFeb 3, 09:02 PM — Resolved Feb 3, 11:06 PM

Elevated errors on Claude Opus 4.5

2 updates

resolvedFeb 3, 11:06 PM

Users experienced errors on Opus 4.5 between 12:08 PM and 2:38 PM PT (20:08 and 22:38 UTC).

investigatingFeb 3, 09:02 PM

We are currently investigating this issue.

minorresolvedFeb 3, 06:42 PM — Resolved Feb 3, 08:47 PM

Elevated error rate establishing new connections to Claude.ai connectors

3 updates

resolvedFeb 3, 08:47 PM

This incident has been resolved.

monitoringFeb 3, 08:26 PM

A fix has been implemented and we are monitoring the results.

investigatingFeb 3, 06:42 PM

We are currently investigating this issue.

minorresolvedFeb 3, 01:30 AM — Resolved Feb 3, 08:30 PM

SSO and magic link sign-in degraded on Claude Desktop

1 update

resolvedFeb 3, 10:40 PM

SSO and magic link sign-in degraded on Claude Desktop

criticalresolvedFeb 3, 06:00 PM — Resolved Feb 3, 06:03 PM

Elevated error rate on API across all Claude models

2 updates

resolvedFeb 3, 06:03 PM

This is a repeat of the earlier incident today. The incident started at 9:52 PT / 17:52 UTC and ended at 9:56 PT / 17:56 UTC. The percentage of requests impacted was also smaller.

investigatingFeb 3, 06:00 PM

We are currently investigating this issue.

criticalpostmortemFeb 3, 03:46 PM — Resolved Feb 3, 03:56 PM

Elevated error rate on API across all Claude models

3 updates

postmortemFeb 3, 04:53 PM

On February 3, 2026, the Claude API experienced approximately 15 minutes of elevated error rates $HTTP 500s$ beginning at approximately 7:32 PT / 15:32 UTC due to an internal configuration update. The issue was quickly identified and resolved by reverting the configuration change. We have identified follow-up improvements to prevent similar issues and to improve our monitoring and alerting.

resolvedFeb 3, 04:07 PM

This incident has been resolved.

identifiedFeb 3, 03:46 PM

The issue has been identified and a fix is being implemented.

minorresolvedFeb 2, 11:15 PM — Resolved Feb 2, 11:18 PM

Elevated errors on Claude Opus 4.5

2 updates

resolvedFeb 2, 11:18 PM

Users experienced errors on Opus 4.5 between 15:09 PT / 23:09 UTC to 15:15 PT / 23:15.

investigatingFeb 2, 11:15 PM

We are currently investigating this issue.

majorresolvedFeb 1, 09:59 PM — Resolved Feb 2, 02:08 AM

Credit purchase issues & delays

4 updates

resolvedFeb 2, 02:08 AM

The incident has been resolved

monitoringFeb 1, 11:47 PM

Purchasing has been confirmed working regularly again, since around 2:30pm Pacific Time. Engineers are monitoring to ensure the system stays healthy.

identifiedFeb 1, 11:08 PM

The root cause has been discovered and engineers are working on a fix

investigatingFeb 1, 09:59 PM

We've received reports that some customers who purchase API or Extra Usage credits are having issues purchasing, and some purchases charged successfully are resulting in significant delay until those customers see the updated credits. Engineering is investigating.

minorresolvedFeb 1, 11:47 AM — Resolved Feb 1, 12:34 PM

Elevated errors on Claude Sonnet 4.5

3 updates

resolvedFeb 1, 12:34 PM

As of 2026-02-01 03:55 PT / 11:55 UTC the errors are back to the baseline.

investigatingFeb 1, 11:48 AM

Start of errors 2026-02-01 03:36 PT / 11:36 UTC.

investigatingFeb 1, 11:47 AM

We are currently investigating this issue.

minorresolvedFeb 1, 10:54 AM — Resolved Feb 1, 11:42 AM

Elevated errors on Claude Opus 4.5

3 updates

resolvedFeb 1, 11:42 AM

The errors have returned to baseline as of 2026-02-01 02:51 / 10:51 UTC.

investigatingFeb 1, 10:54 AM

We are continuing to investigate this issue.

investigatingFeb 1, 10:54 AM

We are investigating an issue with Opus 4.5 that started at 2026-02-01 02:41 PT / 10:41 UTC.

January 2026(4 incidents)

minorresolvedJan 31, 08:18 PM — Resolved Jan 31, 09:06 PM

Some users are experiencing memory leaks in Claude Code 2.1.27

3 updates

resolvedJan 31, 09:06 PM

This incident has been resolved. Update Claude Code to 2.1.29.

monitoringJan 31, 08:41 PM

A fix has been implemented and we are monitoring the results.

identifiedJan 31, 08:18 PM

We have identified the problem and are working on a fix. More details can be found in Github issue #22042.

minorresolvedJan 29, 07:10 PM — Resolved Jan 29, 08:39 PM

Some users are experiencing delays in purchasing additional API credits

3 updates

resolvedJan 29, 08:39 PM

During the outage, all of the following were delayed: - customer balances - billing for standard API usage - issuing credit auto-recharge invoices - access shutoff/restore for $0 in credits, and for reaching spend limits The outage has now been resolved. There is no longer a system delay for any of the above.

identifiedJan 29, 07:51 PM

Some customers are experiencing delays in having their successful credit purchases applied and in triggering credit auto-reloads. We have identified the issue and are working to resolve.

investigatingJan 29, 07:10 PM

We are currently investigating this issue.

minorresolvedJan 28, 01:52 PM — Resolved Jan 28, 02:14 PM

Elevated errors on Claude Opus 4.5

3 updates

resolvedJan 28, 02:14 PM

As of 06:12 PT / 14:12 UTC, we have mitigated the issue.

investigatingJan 28, 01:52 PM

This is a repeat of the incident earlier in the day. Errors have restarted from 05:41 PT / 13:41 UTC.

investigatingJan 28, 01:52 PM

We are currently investigating this issue.

minorresolvedJan 28, 11:30 AM — Resolved Jan 28, 12:30 PM

Elevated errors on Claude Opus 4.5

3 updates

resolvedJan 28, 12:30 PM

As of 03:50 PT / 11:50 UTC we have fully recovered.

monitoringJan 28, 11:47 AM

A fix has been implemented and we are monitoring the results.

investigatingJan 28, 11:30 AM

We are currently investigating this issue.