How often does Anthropic (Claude) have outages?

Anthropic (Claude) has had 50 reported incidents recently. Visit apistatuscheck.com/incidents/anthropic for the complete outage history with timelines and resolution details.

What was the last Anthropic (Claude) outage?

The most recent Anthropic (Claude) incident was "Elevated errors on Claude Opus 4.5 and Sonnet 4.5" on May 4, 2026. It was classified as minor impact and is currently resolved.

Anthropic (Claude) Outage History

50 incidents reported. Data sourced from the official Anthropic (Claude) status page.

Total Incidents

Major/Critical

Minor

Resolved

May 2026

Elevated errors on Claude Opus 4.5 and Sonnet 4.5

minor

May 4, 01:59 PM→May 4, 02:45 PMresolved

May 4, 02:45 PM

resolved — This incident has been resolved.

May 4, 02:27 PM

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

May 4, 02:08 PM

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

+1 more updates

Elevated errors on Claude Opus 4.7

minor

May 4, 02:07 PM→May 4, 02:33 PMresolved

May 4, 02:33 PM

resolved — This incident has been resolved.

May 4, 02:07 PM

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

Elevated errors on Claude Opus 4.5

minor

May 4, 08:09 AM→May 4, 09:49 AMresolved

May 4, 09:49 AM

resolved — This incident has been resolved.

May 4, 09:23 AM

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

May 4, 09:14 AM

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

+3 more updates

April 2026

Elevated errors on Claude Haiku 4.5

minor

Apr 30, 01:10 PM→Apr 30, 02:01 PMresolved

Apr 30, 02:01 PM

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

Apr 30, 01:10 PM

investigating — We are currently investigating this issue.

claude.ai and API unavailable

critical

Apr 30, 01:20 AM→Apr 30, 01:51 AMresolved

Apr 30, 01:51 AM

resolved — This incident has been resolved.

Apr 30, 01:34 AM

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

Apr 30, 01:20 AM

investigating — We are currently investigating this issue.

Elevated errors on Claude Haiku 4.5

minor

Apr 29, 01:47 PM→Apr 29, 02:14 PMresolved

Apr 29, 02:14 PM

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

Apr 29, 02:01 PM

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

Apr 29, 01:47 PM

investigating — We are currently investigating this issue.

Elevated errors on Claude Opus 4.7

minor

Apr 28, 11:33 PM→Apr 29, 12:00 AMresolved

Apr 29, 12:00 AM

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

Apr 28, 11:33 PM

investigating — We are currently investigating this issue.

Claude.ai unavailable and elevated errors on the API

major

Apr 28, 05:41 PM→Apr 28, 07:15 PMresolved

Apr 28, 07:15 PM

resolved — This incident has been resolved.

Apr 28, 06:59 PM

monitoring — 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.

Apr 28, 06:33 PM

identified — 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.

+2 more updates

Elevated errors on Claude Sonnet 4.5

minor

Apr 28, 01:29 PM→Apr 28, 01:50 PMresolved

Apr 28, 01:50 PM

resolved — 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.

Apr 28, 01:29 PM

investigating — We are currently investigating this issue.

Elevated errors on Claude Haiku 4.5

minor

Apr 28, 12:24 PM→Apr 28, 12:45 PMresolved

Apr 28, 12:45 PM

resolved — 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.

Apr 28, 12:38 PM

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

Apr 28, 12:24 PM

investigating — We are currently investigating this issue.

Claude Code Code Review was intermittently failing

none

Apr 28, 06:00 AM→Apr 28, 06:00 AMresolved

Apr 28, 04:36 PM

resolved — Claude Code Code Review intermittently wasn't starting sessions.

Elevated billing related errors on Claude.ai

none

Apr 27, 02:11 PM→Apr 27, 03:18 PMresolved

Apr 27, 03:18 PM

resolved — This incident has been resolved.

Apr 27, 02:11 PM

investigating — We are currently investigating this issue.

Investigated elevated errors and slower responses on claude.ai

none

Apr 25, 06:42 PM→Apr 25, 07:02 PMresolved

Apr 25, 07:02 PM

resolved — This incident has been resolved.

Apr 25, 06:42 PM

investigating — We are currently investigating this issue.

Elevated errors on Claude Opus 4.7

minor

Apr 25, 08:43 AM→Apr 25, 11:58 AMresolved

Apr 25, 11:58 AM

resolved — This incident has been resolved.

Apr 25, 08:57 AM

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

Apr 25, 08:43 AM

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

Elevated errors on Claude Opus 4.7

minor

Apr 25, 07:48 AM→Apr 25, 08:37 AMresolved

Apr 25, 08:37 AM

resolved — This incident has been resolved.

Apr 25, 08:25 AM

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

Apr 25, 07:48 AM

investigating — We are currently investigating this issue.

Claude Code v2.1.120 Crashes on Startup

minor

Apr 25, 01:45 AM→Apr 25, 02:35 AMresolved

Apr 25, 02:35 AM

resolved — This incident has been resolved.

Apr 25, 01:45 AM

monitoring — 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 2.1.11...

Elevated error rates on Claude Opus 4.7

minor

Apr 25, 01:35 AM→Apr 25, 02:34 AMresolved

Apr 25, 02:34 AM

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

Apr 25, 02:15 AM

monitoring — 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.

Apr 25, 01:35 AM

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

Issues with sign-ups on platform.claude.com

major

Apr 24, 05:03 PM→Apr 24, 05:32 PMresolved

Apr 24, 05:32 PM

resolved — This incident has been resolved.

Apr 24, 05:03 PM

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

Elevated errors on Claude Opus 4.7

minor

Apr 24, 10:05 AM→Apr 24, 10:59 AMresolved

Apr 24, 10:59 AM

resolved — 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

Apr 24, 10:51 AM

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

Apr 24, 10:36 AM

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

+2 more updates

Elevated errors on Sonnet 4.6

critical

Apr 24, 02:55 AM→Apr 24, 03:34 AMresolved

Apr 24, 03:34 AM

resolved — This incident has been resolved.

Apr 24, 03:15 AM

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

Apr 24, 03:09 AM

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

+2 more updates

Elevated errors on Claude Opus 4.7

minor

Apr 23, 03:29 PM→Apr 23, 03:59 PMresolved

Apr 23, 03:59 PM

resolved — We've had an incident between 08:23 PT / 15:23 UTC and 8:35 PT / 15:35 UTC. We have fully recovered.

Apr 23, 03:37 PM

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

Apr 23, 03:29 PM

investigating — We are currently investigating this issue.

MCP apps unavailable on Claude.ai

minor

Apr 23, 12:41 AM→Apr 23, 02:09 AMresolved

Apr 23, 02:09 AM

resolved — This incident has been resolved.

Apr 23, 12:57 AM

identified — We have resolved the issue impacting MCP Apps on Claude.ai.

Apr 23, 12:41 AM

identified — We have identified an issue impacting the availability of MCP applications on Claude.ai, including desktop and mobile. We are working on a fix and will provide an update as soon as possible.

Issues with responses using structured outputs on the API

none

Apr 23, 02:00 AM→Apr 23, 02:00 AMresolved

Apr 23, 09:25 PM

resolved — We have identified and resolved an issue which resulted in issues with model responses when making use of structured outputs via the Anthropic API between 16:10 UTC on April 22 and 01:59 UTC on April ...

Elevated errors for uploading files

minor

Apr 20, 01:31 PM→Apr 20, 02:21 PMresolved

Apr 20, 02:21 PM

resolved — This incident has been resolved.

Apr 20, 01:31 PM

investigating — We are currently investigating an issue related to uploading files on Claude.ai and Claude API. Some users will see their uploads failing and they are advised to retry.

Claude Sonnet 4.5 error spike

major

Apr 20, 06:14 AM→Apr 20, 07:25 AMresolved

Apr 20, 07:25 AM

resolved — This incident has been resolved.

Apr 20, 06:41 AM

monitoring — We are continuing to monitor for any further issues.

Apr 20, 06:38 AM

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

+1 more updates

Elevated errors on Opus 4.6

none

Apr 19, 10:44 PM→Apr 20, 12:00 AMresolved

Apr 20, 12:00 AM

resolved — This incident has been resolved.

Apr 19, 10:44 PM

investigating — We are currently investigating this issue.

Errors uploading documents to Google Drive in Claude.ai

minor

Apr 17, 06:59 PM→Apr 17, 07:56 PMresolved

Apr 17, 07:56 PM

resolved — The issue affecting uploads to Google Drive has been resolved.

Apr 17, 06:59 PM

investigating — We are investigating an issue causing errors when uploading documents to Google Drive from Claude.ai, including the desktop app and Cowork.

Failures to add Credentials to Vaults

minor

Apr 16, 10:26 PM→Apr 16, 10:41 PMresolved

Apr 16, 10:41 PM

resolved — This incident has been resolved.

Apr 16, 10:40 PM

monitoring — We are continuing to monitor for any further issues.

Apr 16, 10:33 PM

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

+1 more updates

Claude Cowork not starting for some users

major

Apr 16, 07:24 PM→Apr 16, 09:29 PMresolved

Apr 16, 09:29 PM

resolved — This incident has been resolved in the v1.3109.0 release of Claude Desktop. Please "Check for Updates".

Apr 16, 08:47 PM

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

Apr 16, 07:24 PM

investigating — We are currently investigating this issue on the v1.3036.0 release of Claude Desktop

Opus 4.6 elevated rate of errors

minor

Apr 16, 06:50 AM→Apr 16, 07:43 AMresolved

Apr 16, 07:43 AM

resolved — Earlier today we had an outage on Opus 4.6 that started at 23:03 PT / 6:03 UTC and ended at 00:26 PT / 7:26 UTC.

Apr 16, 06:50 AM

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

Elevated errors on Claude.ai, API, Claude Code

critical

Apr 15, 02:53 PM→Apr 15, 05:42 PMresolved

Apr 15, 05:42 PM

resolved — This incident has been resolved.

Apr 15, 04:29 PM

identified — We have seen success rates for login to Claude.ai, including via Claude Code, stabilize and are working to fully resolve this issue. We will provide an update shortly.

Apr 15, 03:57 PM

identified — Claude.ai and Platform are down. Login for Claude Code does not work via Claude.ai.

+4 more updates

Degraded service on usage and analytics admin API endpoints

minor

Apr 14, 09:24 AM→Apr 14, 03:21 PMresolved

Apr 14, 03:21 PM

resolved — This incident has been resolved.

Apr 14, 01:20 PM

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

Apr 14, 11:47 AM

identified — Root cause identified. Fixes have been merged and are progressing through our deployment pipeline. Intermittent 503 errors on usage and analytics admin API endpoints may continue until the rollout com...

+1 more updates

Claude.ai down

critical

Apr 13, 03:40 PM→Apr 13, 04:35 PMresolved

Apr 13, 04:35 PM

resolved — We have resolved the issue resulting in elevated errors on login for Claude.ai and Claude Code betwen 15:31 to 16:19 UTC.

Apr 13, 04:16 PM

identified — We have identified the issue affecting Claude.ai and Claude Code logins. We are working to apply a fix for this issue, and will provide an additional update as soon as possible.

Apr 13, 03:58 PM

investigating — We are continuing to investigate elevated errors on Claude.ai, primarily affecting login. We will provide an update as soon as possible.

+1 more updates

Email login down

major

Apr 11, 12:00 AM→Apr 11, 12:00 AMresolved

Apr 11, 12:00 AM

resolved — Email login was broken between approximately 3:46 PM and 4:52 PM PDT on April 10, 2026.

Elevated errors on requests to Claude models

minor

Apr 10, 04:30 PM→Apr 10, 04:51 PMresolved

Apr 10, 04:51 PM

resolved — The issue affecting requests to non-Opus models has been resolved.

Apr 10, 04:42 PM

identified — We have identified the current issue as affecting requests to models other than Claude Opus 4.6, and are working to fully resolve this issue. We will provide additional updates shortly.

Apr 10, 04:30 PM

investigating — We are investigating reports of elevated errors on requests to Claude across all products. We will provide an update as soon as possible.

Some Claude.ai share links were inaccessible

minor

Apr 10, 02:00 PM→Apr 10, 02:00 PMresolved

Apr 10, 05:38 PM

resolved — Between April 2 and April 10, some users who were not signed in to Claude.ai (web, mobile, desktop) were not able to access some Claude.ai sharing links.

Degraded Performance on Vaults

minor

Apr 10, 04:28 AM→Apr 10, 04:38 AMresolved

Apr 10, 04:38 AM

resolved — This incident has been resolved.

Apr 10, 04:36 AM

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

Apr 10, 04:28 AM

investigating — We are currently investigating this issue.

Elevated Connector Error Rates

minor

Apr 9, 04:54 PM→Apr 9, 05:34 PMresolved

Apr 9, 05:34 PM

resolved — This incident has been resolved.

Apr 9, 05:33 PM

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

Apr 9, 04:54 PM

investigating — Certain connectors are experiencing higher error rates. We are investigating the issue.

Sonnet 4.6 elevated rate of errors

minor

Apr 9, 08:07 AM→Apr 9, 08:53 AMresolved

Apr 9, 08:53 AM

resolved — This incident has been resolved.

Apr 9, 08:07 AM

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

Errors when connecting to Claude.ai

none

Apr 8, 11:57 PM→Apr 8, 11:57 PMresolved

Apr 8, 11:57 PM

resolved — Some users experienced an error when trying to access Claude.ai on desktop and the web from 23:22–23:50 UTC. This issue has now been resolved.

Outage affecting Workspace Creation

none

Apr 8, 07:22 PM→Apr 8, 07:40 PMresolved

Apr 8, 07:40 PM

resolved — The issue affecting API workspace creation has been resolved. Impact occurred from approximately 4:15 PM to 7:30 PM UTC.

Apr 8, 07:28 PM

monitoring — A fix has been deployed for the issue affecting API workspace creation and we are monitoring for recovery.

Apr 8, 07:22 PM

investigating — We are investigating errors related to creating workspaces via the Claude Console at platform.claude.com and via the admin API Other functionality including inference and the messages API is not impa...

Elevated errors on Claude.ai, API, Claude Code

minor

Apr 8, 05:46 PM→Apr 8, 05:50 PMresolved

Apr 8, 05:50 PM

resolved — From 17:25–17:44 UTC, we saw elevated errors on attempts to log into Claude.ai (mobile, web, and desktop) and platform.claude.com, as well as /login attempts via Claude Code. This issue is now resolve...

Apr 8, 05:46 PM

investigating — We are currently investigating an issue with authentication across multiple product surfaces.

Sonnet 4.6 elevated rate of errors

major

Apr 8, 06:23 AM→Apr 8, 09:33 AMresolved

Apr 8, 09:33 AM

resolved — The incident is now resolved. Sonnet 4.6 exhibited errors above baseline between 23:00 PT / 7:00 UTC and 1:50 PT / 9:50 UTC.

Apr 8, 09:01 AM

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

Apr 8, 07:59 AM

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

+2 more updates

Elevated errors on Claude.ai

critical

Apr 7, 02:32 PM→Apr 7, 03:59 PMresolved

Apr 7, 03:59 PM

resolved — From 14:32–15:12 UTC, we saw elevated errors impacting various Claude services, including Claude.ai and Claude Code authentication. These errors have been resolved.

Apr 7, 03:22 PM

monitoring — We have applied a fix and success rates have returned to normal. We are continuing to monitor closely to ensure there are no further issues.

Apr 7, 02:55 PM

identified — We have identified an issue resulting in elevated errors on Claude.ai, including desktop and mobile. Users may experience errors when attempting to login, engaging with voice mode, or completing chats...

Sonnet 4.6 elevated rate of errors

minor

Apr 6, 09:26 PM→Apr 6, 09:45 PMresolved

Apr 6, 09:45 PM

resolved — This incident has been resolved.

Apr 6, 09:26 PM

investigating — We are currently investigating this issue.

Elevated errors on Claude.ai

major

Apr 6, 03:45 PM→Apr 6, 05:16 PMresolved

Apr 6, 05:16 PM

resolved — From 15:00–16:30 UTC on April 6, we saw elevated errors on login for Claude.ai and Claude Code. This issue also affected some Claude.ai conversations and other product functionality such as voice mode...

Apr 6, 04:44 PM

monitoring — We have applied a fix, and are seeing success rates recover across affected services. We are continuing to monitor to ensure there is no recurrence of issues.

Apr 6, 04:17 PM

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

+2 more updates

Sonnet 4.6 and Opus 4.6 elevated error rate

none

Apr 4, 05:30 PM→Apr 4, 05:30 PMresolved

Apr 4, 06:24 PM

resolved — Between 10:09 and 10:31 PDT, Sonnet 4.6 and Opus 4.6 experienced elevated error rates across most product surfaces.

Elevated errors on requests to Claude Sonnet 4.6

major

Apr 3, 06:12 PM→Apr 3, 07:21 PMresolved

Apr 3, 07:21 PM

resolved — This incident has been resolved.

Apr 3, 06:12 PM

investigating — We are currently investigating an issue resulting in elevated errors on requests to Claude Sonnet 4.6. We will provide an update as soon as possible.

Errors on the Claude.ai desktop application

major

Apr 1, 10:15 PM→Apr 1, 10:16 PMresolved

Apr 1, 10:16 PM

resolved — This incident has been resolved.

Apr 1, 10:15 PM

identified — We have identified an issue which results in the Claude.ai desktop application returning an error when attempting to connect. We are working to resolve this issue as quickly as possible, and the Claud...

Elevated errors on requests to Claude Opus 4.6

major

Apr 1, 09:06 AM→Apr 1, 10:40 AMresolved

Apr 1, 10:40 AM

resolved — This incident has been resolved.

Apr 1, 09:06 AM

identified — We have identified an issue resulting in elevated errors on requests to Claude Opus 4.6, and are working to resolve this. We will provide an update as soon as possible.

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