Anthropic (Claude) Outage History

Past incidents and downtime events

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

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May 2026(34 incidents)

minorresolvedMay 26, 01:56 AM — Resolved May 26, 05:19 AM

Elevated errors for Claude Code in Slack

2 updates

resolvedMay 26, 05:19 AM

This incident has been resolved.

investigatingMay 26, 01:56 AM

We are currently investigating this issue.

noneresolvedMay 25, 10:32 AM — Resolved May 25, 10:39 AM

Elevated error rates on Opus 4.7

2 updates

resolvedMay 25, 10:39 AM

This incident has been resolved.

monitoringMay 25, 10:32 AM

We had an elevated error rate on Opus 4.7 from 6:30 UTC until 10:30 UTC

minorresolvedMay 22, 10:17 AM — Resolved May 22, 10:31 AM

Elevated errors on Claude Opus 4.7

3 updates

resolvedMay 22, 10:31 AM

This incident has been resolved.

monitoringMay 22, 10:26 AM

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

investigatingMay 22, 10:17 AM

We are currently investigating this issue.

majorresolvedMay 22, 04:16 AM — Resolved May 22, 08:50 AM

Elevated error rate on multiple models

7 updates

resolvedMay 22, 08:50 AM

This issue has been resolved.

monitoringMay 22, 06:32 AM

We are monitoring recovery on Claude Opus 4.7, and working to fully resolve remaining errors impacting Haiku 4.5. We will provide additional updates shortly.

monitoringMay 22, 06:17 AM

We are currently working to resolve some additional errors impacting Claude Opus 4.7 and Haiku 4.5, we will provide an additional update shortly.

monitoringMay 22, 05:53 AM

We have seen success rates on Claude Opus 4.7 and Sonnet 4.6 return to normal. We are monitoring closely to ensure no further issues, and will provide an additional update shortly.

identifiedMay 22, 05:25 AM

We are continuing to work to fully resolve issues impacting Claude Opus 4.7, and Sonnet 4.6. At this time, success rates on Claude Opus 4.7 have stabilized. We will provide additional updates shortly.

identifiedMay 22, 04:40 AM

We have identified an issue resulting in elevated error rates, primarily on Claude Opus 4.7 and Sonnet 4.6. We are working to resolve these issues, and will provide additional updates as soon as possible.

investigatingMay 22, 04:16 AM

We are currently investigating this issue.

minorresolvedMay 21, 08:24 PM — Resolved May 21, 09:08 PM

Elevated errors on Claude.ai

3 updates

resolvedMay 21, 09:08 PM

This incident has been resolved.

monitoringMay 21, 08:42 PM

We have applied a fix and success rates for requests on Claude.ai have returned to normal. We are monitoring closely to ensure no further issues.

investigatingMay 21, 08:24 PM

We are investigating elevated errors for users of Claude.ai, and will provide an update as soon as possible.

minorresolvedMay 20, 02:43 PM — Resolved May 20, 04:04 PM

Elevated errors on Claude Opus 4.7

3 updates

resolvedMay 20, 04:04 PM

This incident has been resolved.

monitoringMay 20, 03:56 PM

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

investigatingMay 20, 02:43 PM

We are currently investigating this issue.

minorresolvedMay 20, 08:14 AM — Resolved May 20, 08:49 AM

Elevated errors on Claude Haiku 4.5

3 updates

resolvedMay 20, 08:49 AM

This incident has been resolved.

monitoringMay 20, 08:31 AM

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

investigatingMay 20, 08:14 AM

We are currently investigating this issue.

majorresolvedMay 19, 02:03 PM — Resolved May 19, 03:40 PM

Elevated errors on Claude Opus 4.7

4 updates

resolvedMay 19, 03:40 PM

This incident has been resolved.

monitoringMay 19, 03:21 PM

We are continuing to monitor for any further issues.

monitoringMay 19, 03:19 PM

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

investigatingMay 19, 02:03 PM

We are currently investigating this issue.

minorresolvedMay 19, 08:41 AM — Resolved May 19, 10:08 AM

Elevated errors on Claude Opus 4.7

2 updates

resolvedMay 19, 10:08 AM

This incident has been resolved.

investigatingMay 19, 08:41 AM

We are currently investigating this issue.

minorresolvedMay 19, 07:00 AM — Resolved May 19, 08:30 AM

Elevated errors on Claude Haiku 4.5

3 updates

resolvedMay 19, 08:30 AM

This incident has been resolved.

monitoringMay 19, 07:56 AM

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

investigatingMay 19, 07:00 AM

We are currently investigating this issue.

minorresolvedMay 19, 04:46 AM — Resolved May 19, 04:51 AM

Elevated errors on Claude.ai and Claude Code login

2 updates

resolvedMay 19, 04:51 AM

This issue has been resolved.

monitoringMay 19, 04:46 AM

From 04:34–04:42 UTC, we saw elevated errors and latency on requests within the Claude.ai applications. Additionally, users may have experienced errors when attempting to login, including authenticating Claude Code via Claude.ai. We are monitoring closely to ensure no further issues, and will provide an additional update shortly.

majorresolvedMay 18, 10:10 PM — Resolved May 18, 10:19 PM

Elevated errors for Claude Opus 4.7

2 updates

resolvedMay 18, 10:19 PM

The issue affecting Claude services has been resolved. Impact occurred from 21:47 to 22:18 UTC.

investigatingMay 18, 10:10 PM

We are investigating elevated errors on requests to Claude Opus 4.7. We will provide an update as soon as possible.

minorresolvedMay 18, 06:12 AM — Resolved May 18, 08:07 AM

Elevated errors on Claude Haiku 4.5

3 updates

resolvedMay 18, 08:07 AM

This incident has been resolved.

monitoringMay 18, 07:28 AM

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

investigatingMay 18, 06:12 AM

We are currently investigating this issue.

majorresolvedMay 16, 06:08 PM — Resolved May 16, 06:24 PM

Elevated error rates on requests to multiple models

3 updates

resolvedMay 16, 06:24 PM

This incident has been resolved.

monitoringMay 16, 06:18 PM

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

investigatingMay 16, 06:08 PM

We are currently investigating this issue.

majorresolvedMay 15, 12:18 AM — Resolved May 15, 01:46 AM

Elevated error rates on requests to some models

5 updates

resolvedMay 15, 01:46 AM

This incident has been resolved.

identifiedMay 15, 01:26 AM

We are working to resolve errors impacting Claude Opus 4.6, and have seen both Sonnet 4.6 and Opus 4.7 return to normal success rates.

identifiedMay 15, 01:06 AM

We are currently working to resolve issues affecting requests to Claude Opus and Sonnet 4.6, though success rates for Opus 4.7 have returned to normal.

investigatingMay 15, 12:19 AM

We are continuing to investigate this issue.

investigatingMay 15, 12:18 AM

We are currently investigating this issue.

minorresolvedMay 14, 08:33 PM — Resolved May 14, 10:25 PM

Elevated errors on Claude Opus 4.7

3 updates

resolvedMay 14, 10:25 PM

This incident has been resolved.

monitoringMay 14, 09:07 PM

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

investigatingMay 14, 08:33 PM

We are currently investigating this issue.

majorresolvedMay 13, 12:21 PM — Resolved May 13, 02:45 PM

Claude.ai is experiencing elevated error rates

3 updates

resolvedMay 13, 02:45 PM

This incident has been resolved.

investigatingMay 13, 12:59 PM

We are continuing to investigate this issue.

investigatingMay 13, 12:21 PM

We are currently investigating this issue.

majorresolvedMay 13, 11:25 AM — Resolved May 13, 11:57 AM

Claude.ai is experiencing elevated error rates

3 updates

resolvedMay 13, 11:57 AM

This incident has been resolved.

monitoringMay 13, 11:48 AM

We are seeing recovery and currently monitoring at this time.

investigatingMay 13, 11:25 AM

We are currently investigating this issue.

majorresolvedMay 12, 11:38 PM — Resolved May 12, 11:58 PM

Elevated errors on Claude Opus 4.7

3 updates

resolvedMay 12, 11:58 PM

This incident has been resolved.

monitoringMay 12, 11:51 PM

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

identifiedMay 12, 11:38 PM

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

majorresolvedMay 12, 07:36 PM — Resolved May 12, 08:13 PM

Elevated errors for Claude Sonnet 4.6 and Haiku 4.5

2 updates

resolvedMay 12, 08:13 PM

This incident has been resolved.

investigatingMay 12, 07:36 PM

We are investigating elevated errors on requests to Claude Sonnet 4.6 and Haiku 4.5. We will provide an update as soon as possible.

minorresolvedMay 12, 06:47 PM — Resolved May 12, 06:57 PM

Elevated Error Rate for Vaults and Credentials

3 updates

resolvedMay 12, 06:57 PM

This incident has been resolved.

monitoringMay 12, 06:51 PM

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

investigatingMay 12, 06:47 PM

We are currently investigating this issue.

minorresolvedMay 9, 11:33 PM — Resolved May 9, 11:51 PM

Claude Code on the Web Partial Outage

2 updates

resolvedMay 9, 11:51 PM

This incident has been resolved

investigatingMay 9, 11:33 PM

We are currently investigating this issue.

minorresolvedMay 9, 07:57 AM — Resolved May 9, 08:22 AM

Elevated errors on Claude Opus 4.1

2 updates

resolvedMay 9, 08:22 AM

This incident has been resolved.

identifiedMay 9, 07:57 AM

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

majorresolvedMay 8, 10:30 PM — Resolved May 9, 12:24 AM

Claude Code IDE extension unable to load on Windows

4 updates

resolvedMay 9, 12:24 AM

This incident has been resolved in v2.1.137. Please update to get the fix.

monitoringMay 9, 12:17 AM

A fix has been implemented and published in v2.1.137. We are monitoring results.

identifiedMay 8, 10:32 PM

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

investigatingMay 8, 10:30 PM

We are investigating an issue in Claude Code version 2.1.136 that prevents the IDE extension from loading on Windows. We will provide an update as soon as possible.

minorresolvedMay 8, 05:01 PM — Resolved May 8, 05:25 PM

Elevated errors on Claude Opus 4.7

3 updates

resolvedMay 8, 05:25 PM

This incident has been resolved.

monitoringMay 8, 05:13 PM

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

investigatingMay 8, 05:01 PM

We are currently investigating this issue.

minorresolvedMay 8, 02:12 PM — Resolved May 8, 03:17 PM

Elevated Errors on File Operations

2 updates

resolvedMay 8, 03:17 PM

This incident has been resolved.

investigatingMay 8, 02:12 PM

We are currently investigating this issue.

minorresolvedMay 8, 03:03 PM — Resolved May 8, 03:11 PM

Elevated errors on Claude Sonnet 4.6

4 updates

resolvedMay 8, 03:11 PM

This incident has been resolved.

monitoringMay 8, 03:07 PM

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

identifiedMay 8, 03:07 PM

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

investigatingMay 8, 03:03 PM

We are currently investigating this issue.

majorresolvedMay 8, 09:49 AM — Resolved May 8, 11:40 AM

Elevated errors across Claude Models

4 updates

resolvedMay 8, 11:40 AM

This incident has been resolved.

monitoringMay 8, 11:32 AM

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

identifiedMay 8, 10:26 AM

We have identified the cause and a fix is being rolled out. As of 10:22 UTC, the remaining impact is limited to Claude Opus 4.1 and Fast Mode for Claude Opus 4.6.

investigatingMay 8, 09:49 AM

We are currently investigating this issue.

majorresolvedMay 6, 10:32 PM — Resolved May 7, 04:36 PM

Connection failures for organizations restricting GitHub access by IP address

3 updates

resolvedMay 7, 04:36 PM

This incident has been resolved.

monitoringMay 7, 03:17 PM

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

identifiedMay 6, 10:32 PM

We have identified an issue affecting organizations that restrict GitHub access by source IP address. A recent infrastructure change altered the IP addresses Anthropic uses for outbound connections to GitHub, which may cause Claude Code remote sessions, GitHub Enterprise plugin syncing, and Claude Security to fail. We are reverting the change to restore the previous IP ranges; no allowlist changes will be needed on your side. We will post an update once the fix is deployed.

minorresolvedMay 7, 12:10 PM — Resolved May 7, 12:45 PM

Elevated errors on Claude Opus 4.7

4 updates

resolvedMay 7, 12:45 PM

This incident has been resolved.

monitoringMay 7, 12:20 PM

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

identifiedMay 7, 12:19 PM

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

investigatingMay 7, 12:10 PM

We are currently investigating this issue.

majorresolvedMay 6, 03:29 PM — Resolved May 6, 04:51 PM

Elevated errors across multiple models

4 updates

resolvedMay 6, 04:51 PM

This incident has been resolved.

monitoringMay 6, 04:32 PM

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

identifiedMay 6, 03:54 PM

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

investigatingMay 6, 03:29 PM

We are currently investigating this issue.

minorresolvedMay 4, 01:59 PM — Resolved May 4, 02:45 PM

Elevated errors on Claude Opus 4.5 and Sonnet 4.5

4 updates

resolvedMay 4, 02:45 PM

This incident has been resolved.

monitoringMay 4, 02:27 PM

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

identifiedMay 4, 02:08 PM

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

investigatingMay 4, 01:59 PM

We are currently investigating this issue.

minorresolvedMay 4, 02:07 PM — Resolved May 4, 02:33 PM

Elevated errors on Claude Opus 4.7

2 updates

resolvedMay 4, 02:33 PM

This incident has been resolved.

identifiedMay 4, 02:07 PM

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

minorresolvedMay 4, 08:09 AM — Resolved May 4, 09:49 AM

Elevated errors on Claude Opus 4.5

6 updates

resolvedMay 4, 09:49 AM

This incident has been resolved.

monitoringMay 4, 09:23 AM

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

identifiedMay 4, 09:14 AM

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

identifiedMay 4, 08:19 AM

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

investigatingMay 4, 08:09 AM

We are continuing to investigate this issue.

investigatingMay 4, 08:09 AM

We are currently investigating this issue.

April 2026(16 incidents)

minorresolvedApr 30, 01:10 PM — Resolved Apr 30, 02:01 PM

Elevated errors on Claude Haiku 4.5

2 updates

resolvedApr 30, 02:01 PM

The incident has been resolved. Error rates were elevated between 5:20 PT / 12:48 PT and 6:48 PT / 13:48 PT.

investigatingApr 30, 01:10 PM

We are currently investigating this issue.

criticalresolvedApr 30, 01:20 AM — Resolved Apr 30, 01:51 AM

claude.ai and API unavailable

3 updates

resolvedApr 30, 01:51 AM

This incident has been resolved.

monitoringApr 30, 01:34 AM

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

investigatingApr 30, 01:20 AM

We are currently investigating this issue.

minorresolvedApr 29, 01:47 PM — Resolved Apr 29, 02:14 PM

Elevated errors on Claude Haiku 4.5

3 updates

resolvedApr 29, 02:14 PM

The incident is resolved. The elevated error rate was between 05:37 PT / 12:37 UTC and 06:58 PT / 13:37 UTC.

monitoringApr 29, 02:01 PM

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

investigatingApr 29, 01:47 PM

We are currently investigating this issue.

minorresolvedApr 28, 11:33 PM — Resolved Apr 29, 12:00 AM

Elevated errors on Claude Opus 4.7

2 updates

resolvedApr 29, 12:00 AM

The incident is now resolved. The impact was between 16:25 PT / 23:25 UTC and 16:33 PT / 23:33 UTC.

investigatingApr 28, 11:33 PM

We are currently investigating this issue.

majorresolvedApr 28, 05:41 PM — Resolved Apr 28, 07:15 PM

Claude.ai unavailable and elevated errors on the API

5 updates

resolvedApr 28, 07:15 PM

This incident has been resolved.

monitoringApr 28, 06:59 PM

We are seeing success rates across all services return to normal, and are monitoring closely to prevent any further issues. Impact occurred from 17:34–18:52 UTC.

identifiedApr 28, 06:33 PM

We are continuing to work to resolve the issues preventing users from accessing Claude.ai, and causing elevated authentication errors for requests to the API and Claude Code.

identifiedApr 28, 05:51 PM

We have identified an issue resulting in elevated errors on the Anthropic API, as well as issues accessing Claude.ai, including log-in paths for Claude Code. We are working to resolve these issues, and will provide an update as soon as possible.

investigatingApr 28, 05:41 PM

We are investigating an issue preventing users from reaching Claude.ai, and will provide an update as soon as possible.

minorresolvedApr 28, 01:29 PM — Resolved Apr 28, 01:50 PM

Elevated errors on Claude Sonnet 4.5

2 updates

resolvedApr 28, 01:50 PM

The incident has now been resolved. The timeline for the elevated errors was 6:22 PT / 13:22 UTC -> 6:39 PT / 13:39 UTC.

investigatingApr 28, 01:29 PM

We are currently investigating this issue.

minorresolvedApr 28, 12:24 PM — Resolved Apr 28, 12:45 PM

Elevated errors on Claude Haiku 4.5

3 updates

resolvedApr 28, 12:45 PM

The incident has now been resolved. The elevated error rate for Haiku 4.5 was between 4:53 PT / 11:53 UTC and 5:36 PT / 12:44 UTC.

monitoringApr 28, 12:38 PM

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

investigatingApr 28, 12:24 PM

We are currently investigating this issue.

noneresolvedApr 28, 06:00 AM — Resolved Apr 28, 06:00 AM

Claude Code Code Review was intermittently failing

1 update

resolvedApr 28, 04:36 PM

Claude Code Code Review intermittently wasn't starting sessions.

noneresolvedApr 27, 02:11 PM — Resolved Apr 27, 03:18 PM

Elevated billing related errors on Claude.ai

2 updates

resolvedApr 27, 03:18 PM

This incident has been resolved.

investigatingApr 27, 02:11 PM

We are currently investigating this issue.

noneresolvedApr 25, 06:42 PM — Resolved Apr 25, 07:02 PM

Investigated elevated errors and slower responses on claude.ai

2 updates

resolvedApr 25, 07:02 PM

This incident has been resolved.

investigatingApr 25, 06:42 PM

We are currently investigating this issue.

minorresolvedApr 25, 08:43 AM — Resolved Apr 25, 11:58 AM

Elevated errors on Claude Opus 4.7

3 updates

resolvedApr 25, 11:58 AM

This incident has been resolved.

monitoringApr 25, 08:57 AM

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

identifiedApr 25, 08:43 AM

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

minorresolvedApr 25, 07:48 AM — Resolved Apr 25, 08:37 AM

Elevated errors on Claude Opus 4.7

3 updates

resolvedApr 25, 08:37 AM

This incident has been resolved.

monitoringApr 25, 08:25 AM

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

investigatingApr 25, 07:48 AM

We are currently investigating this issue.

minorresolvedApr 25, 01:45 AM — Resolved Apr 25, 02:35 AM

Claude Code v2.1.120 Crashes on Startup

2 updates

resolvedApr 25, 02:35 AM

This incident has been resolved.

monitoringApr 25, 01:45 AM

We have identified an issue in Claude Code version 2.1.120 that causes a crash when resuming a prior session via the --resume or --continue flags. Auto-update will move affected clients back to 2.1.119 on next check, but you can always run `claude install 2.1.119`.

minorresolvedApr 25, 01:35 AM — Resolved Apr 25, 02:34 AM

Elevated error rates on Claude Opus 4.7

3 updates

resolvedApr 25, 02:34 AM

The issue affecting requests to Claude Opus 4.7 has been resolved. Impact occurred from 01:24–01:59 UTC.

monitoringApr 25, 02:15 AM

A fix has been deployed for Claude Opus 4.7 and we are seeing success rates at normal levels. We are continuing to monitor, and ensure no further recurrence.

investigatingApr 25, 01:35 AM

We are investigating elevated errors for requests to Claude Opus 4.7. We will provide an update as soon as possible.

majorresolvedApr 24, 05:03 PM — Resolved Apr 24, 05:32 PM

Issues with sign-ups on platform.claude.com

2 updates

resolvedApr 24, 05:32 PM

This incident has been resolved.

investigatingApr 24, 05:03 PM

We are currently investigating an issue resulting in errors when attempting to sign up at platform.claude.com

minorresolvedApr 24, 10:05 AM — Resolved Apr 24, 10:59 AM

Elevated errors on Claude Opus 4.7

5 updates

resolvedApr 24, 10:59 AM

The incident has been resolved. We had 3 blips of unavailability: * 2:53 PT / 9:53 UTC -- 2:57 PT / 9:57 UTC * 3:01 PT / 10:01 UTC -- 3:06 PT / 10:06 UTC * 3:34 PT / 10:34 UTC -- 3:36 PT / 10:36 UTC

identifiedApr 24, 10:51 AM

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

identifiedApr 24, 10:36 AM

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

investigatingApr 24, 10:20 AM

We are continuing to investigate this issue.

investigatingApr 24, 10:06 AM

We are currently investigating this issue.

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