Claude.ai Outage History
Claude.ai is up right nowPingoru has recorded 212 incidents for Claude.ai: 212 in the last 12 months and 45 in the last 90 days.
Show as a table
| Month | Incidents | Hours with an open incident |
|---|---|---|
| April 2026 | 36 | 40 of 720 (6%) |
| May 2026 | 36 | 52 of 744 (7%) |
| June 2026 | 43 | 365 of 720 (51%) |
| July 2026 | 44 | 63 of 744 (8%) |
| August 2026 | 22 | 30 of 744 (4%) |
| September 2026 | 9 | 11 of 720 (1%) |
| October 2026 | 3 | 1 of 511 (0%) |
Incidents, newest first
Minor October 21, 2026 Degraded performance for Claude Fable 5 40m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Oct 21, 2026, 07:49 PM UTC· resolved Oct 21, 2026, 08:29 PM UTC
- investigating Oct 21, 2026, 07:49 PM UTC
We are investigating elevated errors on requests to Claude Fable 5. We will provide an update as soon as possible.
- resolved Oct 21, 2026, 08:29 PM UTC
The issue affecting other Claude models has been resolved.
Major October 6, 2026 Elevated errors for Claude Opus 5.5 18m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Oct 06, 2026, 12:24 PM UTC· resolved Oct 06, 2026, 12:43 PM UTC
- investigating Oct 06, 2026, 12:24 PM UTC
We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.
- identified Oct 06, 2026, 12:37 PM UTC
We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
- resolved Oct 06, 2026, 12:43 PM UTC
The issue affecting Claude Opus 5.5 has been resolved.
Major October 5, 2026 Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1 15m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Oct 05, 2026, 01:05 PM UTC· resolved Oct 05, 2026, 01:21 PM UTC
- investigating Oct 05, 2026, 01:05 PM UTC
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
- resolved Oct 05, 2026, 01:21 PM UTC
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.
Major September 29, 2026 Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude API 2h 5m claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code and 1 more
Started Sep 29, 2026, 02:21 PM UTC· resolved Sep 29, 2026, 04:27 PM UTC
- investigating Sep 29, 2026, 02:21 PM UTC
We are investigating elevated error rates affecting Claude.ai (including the desktop and mobile apps), Claude Code and Claude Cowork. Users may see failed requests, errors loading or sending conversations, or be asked to sign in again; retrying may succeed. We will provide an update as soon as possible.
- investigating Sep 29, 2026, 02:28 PM UTC
We are investigating elevated error rates affecting Claude.ai (including the desktop and mobile apps), Claude Code and Claude Cowork. Some requests to the Claude API are also returning errors. We will provide an update as soon as possible.
- investigating Sep 29, 2026, 02:30 PM UTC
We are investigating reports of degraded performance affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork. We will provide an update as soon as possible.
- investigating Sep 29, 2026, 02:41 PM UTC
We have applied a mitigation and error rates have dropped substantially. Some sign-in attempts, account actions and Claude Code and Cowork sessions are still failing. We are continuing to work on a full fix.
- investigating Sep 29, 2026, 03:00 PM UTC
The errors that began at 14:00 UTC were mitigated at 14:36 UTC, and existing conversations are mostly working again. A second issue is preventing many users from signing in (single sign-on and Sign in with Apple are unavailable), starting new chats, voice conversations and Claude Code or Cowork sessions, making purchases, and uploading files. If you're signed in, please don't sign out. We're working on a fix and will post another update within 30 minutes.
- monitoring Sep 29, 2026, 03:11 PM UTC
Most services have recovered as of 14:59 UTC. Signing in, starting new chats, voice conversations, Claude Code and Cowork sessions, purchases and file uploads are working again. Some messages sent between 14:00 and 14:59 UTC may not have been saved. We are monitoring closely and will post another update within 30 minutes.
- monitoring Sep 29, 2026, 03:30 PM UTC
All services have been operating normally since 14:59 UTC. We are continuing to monitor.
- resolved Sep 29, 2026, 04:27 PM UTC
The issue affecting Claude.ai, the Claude desktop and mobile apps, Claude Code, Claude Cowork, and the Claude API has been resolved, and services have been operating normally since recovery. Impact occurred from 07:00 PT / 14:00 UTC to 07:59 PT / 14:59 UTC.
Major September 22, 2026 Elevated errors for multiple models 1h 37m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Sep 22, 2026, 12:57 AM UTC· resolved Sep 22, 2026, 02:35 AM UTC
- investigating Sep 22, 2026, 12:57 AM UTC
We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.
- identified Sep 22, 2026, 01:17 AM UTC
We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
- identified Sep 22, 2026, 01:35 AM UTC
We are continuing to work to resolve errors affecting some models. At this time, requests to Claude Fable 5 and 5.1 and Mythos 5 and 5.1 have returned to normal success rates. We are working to resolve remaining errors affecting Claude Opus 5, and will provide an additional update shortly.
- monitoring Sep 22, 2026, 02:11 AM UTC
We have seen success rates return to normal across affected models, and are monitoring closely to ensure no further issues.
- resolved Sep 22, 2026, 02:35 AM UTC
This issue has been resolved. Impact occurred from 5:50pm PT / 00:50 UTC to 7:10pm PT / 02:10 UTC.
Major September 15, 2026 Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1 1h 26m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Sep 15, 2026, 09:48 AM UTC· resolved Sep 15, 2026, 11:14 AM UTC
- investigating Sep 15, 2026, 09:48 AM UTC
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
- investigating Sep 15, 2026, 09:52 AM UTC
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
- monitoring Sep 15, 2026, 10:50 AM 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.
- resolved Sep 15, 2026, 11:14 AM 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.
Major September 3, 2026 Elevated errors for Claude Sonnet 5 18m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Sep 03, 2026, 12:37 PM UTC· resolved Sep 03, 2026, 12:56 PM UTC
- investigating Sep 03, 2026, 12:37 PM UTC
We are investigating elevated errors on requests to Claude Sonnet 5. We will provide an update as soon as possible.
- monitoring Sep 03, 2026, 12:47 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Sep 03, 2026, 12:56 PM UTC
This incident has been resolved.
Minor September 1, 2026 Degraded performance on platform.claude.com and Claude for Microsoft Office 365 1h 1m claude.ai, Claude Console (platform.claude.com)
Started Sep 01, 2026, 05:05 PM UTC· resolved Sep 01, 2026, 06:07 PM UTC
- investigating Sep 01, 2026, 05:05 PM UTC
We are investigating reports of degraded performance affecting some Claude services, including docs.claude.com. We are working to resolve these issues and will provide an update as soon as possible.
- monitoring Sep 01, 2026, 05:52 PM UTC
We are seeing success rates recover across affected services. Core inference and the API are not impacted.
- resolved Sep 01, 2026, 06:07 PM UTC
This issue has been resolved.
Minor September 1, 2026 Degraded performance on Claude for Microsoft Office 365 19m claude.ai
Started Sep 01, 2026, 04:02 PM UTC· resolved Sep 01, 2026, 04:22 PM UTC
- investigating Sep 01, 2026, 04:02 PM UTC
We are investigating elevated errors affecting Claude for Microsoft Office 365. We will provide an update as soon as possible.
- resolved Sep 01, 2026, 04:22 PM UTC
This issue has been resolved.
Minor August 31, 2026 Degraded performance on claude.ai and Claude Code 1h 14m claude.ai, Claude Code
Started Aug 31, 2026, 07:21 PM UTC· resolved Aug 31, 2026, 08:36 PM UTC
- investigating Aug 31, 2026, 07:21 PM UTC
We are investigating reports of degraded performance affecting Claude in Slack, Claude Code on the web, and Code Review. We will provide an update as soon as possible.
- resolved Aug 31, 2026, 08:36 PM UTC
The issue affecting Claude Code has been resolved. Impact occurred from 16∶55 to 19∶16 UTC.
Minor August 31, 2026 Degraded performance on claude.ai 29m claude.ai
Started Aug 31, 2026, 05:23 PM UTC· resolved Aug 31, 2026, 05:52 PM UTC
- investigating Aug 31, 2026, 05:23 PM UTC
We are investigating reports of elevated errors affecting chats on claude.ai. We will provide an update as soon as possible.
- monitoring Aug 31, 2026, 05:32 PM UTC
We have seen success rates return to normal for requests on Claude.ai and are monitoring closely.
- resolved Aug 31, 2026, 05:52 PM UTC
This issue has been resolved.
Minor August 24, 2026 Issues logging into Claude.ai 14m claude.ai, Claude Code, Claude Cowork
Started Aug 24, 2026, 08:11 PM UTC· resolved Aug 24, 2026, 08:26 PM UTC
- monitoring Aug 24, 2026, 08:11 PM UTC
We have identified and resolved an issue which resulted in errors when attempting to access Claude.ai, including logging in via subscriptions for Claude Code. Errors occurred between 1:00pm (20:00 UTC) through 1:08pm PT (20:08 UTC). We are monitoring closely to ensure no further issues.
- resolved Aug 24, 2026, 08:26 PM UTC
This issue has been resolved.
Minor August 24, 2026 Errors logging into Claude.ai 3m claude.ai
Started Aug 24, 2026, 05:12 PM UTC· resolved Aug 24, 2026, 05:16 PM UTC
- investigating Aug 24, 2026, 05:12 PM UTC
From 9:02–9:08am PT / 16:02–16:08 UTC) users experienced issues when logging into Claude.ai, including for connecting Claude Code with subscription. At this time, this issue has been resolved, but we are continuing to investigate a potential issue impacting users of the Claude.ai desktop application.
- resolved Aug 24, 2026, 05:16 PM UTC
This issue has been resolved.
Major August 20, 2026 Elevated errors on requests to multiple models 26m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 20, 2026, 07:16 PM UTC· resolved Aug 20, 2026, 07:42 PM UTC
- investigating Aug 20, 2026, 07:16 PM UTC
We are investigating elevated errors on requests to some Claude models. We will provide additional updates as soon as possible.
- resolved Aug 20, 2026, 07:42 PM UTC
This issue has been resolved.
Minor August 20, 2026 Elevated errors on Google connectors 28m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 20, 2026, 06:32 PM UTC· resolved Aug 20, 2026, 07:01 PM UTC
- investigating Aug 20, 2026, 06:32 PM UTC
We are investigating elevated errors affecting Google connectors (Sheets, Docs, Slides, and Chat) and custom Google integrations on Claude.ai. Core functionality is not affected. We will provide an update as soon as possible.
- resolved Aug 20, 2026, 07:01 PM UTC
This issue has been resolved.
Minor August 19, 2026 Degraded performance for Claude Opus 5 and Claude Haiku 4.5 1h 19m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 19, 2026, 09:42 AM UTC· resolved Aug 19, 2026, 11:02 AM UTC
- identified Aug 19, 2026, 09:42 AM UTC
We have identified the cause of elevated errors on requests to Claude Opus 5 and Claude Haiku 4.5 and are working on a fix. We will provide an update as soon as possible.
- monitoring Aug 19, 2026, 10:33 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Aug 19, 2026, 11:02 AM UTC
This incident has been resolved.
Minor August 18, 2026 Degraded performance for multiple models 2h 41m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 18, 2026, 04:20 PM UTC· resolved Aug 18, 2026, 07:01 PM UTC
- investigating Aug 18, 2026, 04:20 PM UTC
We are investigating reports of degraded performance affecting multiple models. We will provide an update as soon as possible.
- investigating Aug 18, 2026, 04:20 PM UTC
We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.
- investigating Aug 18, 2026, 05:12 PM UTC
We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
- monitoring Aug 18, 2026, 06:26 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Aug 18, 2026, 07:01 PM UTC
The issue affecting Claude Opus 5 has been resolved. Impact occurred from 16:11 to 18:23 UTC.
Minor August 17, 2026 Degraded performance for Claude Opus 5, Claude Sonnet 5 1h 32m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 17, 2026, 01:56 PM UTC· resolved Aug 17, 2026, 03:29 PM UTC
- investigating Aug 17, 2026, 01:56 PM UTC
We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
- investigating Aug 17, 2026, 02:25 PM UTC
Claude Opus 5 is operational. Claude Sonnet 5 is degraded. We are investigating.
- monitoring Aug 17, 2026, 02:39 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Aug 17, 2026, 03:29 PM UTC
This incident has been resolved.
Major August 16, 2026 Service disruption on Claude services 22m claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code and 1 more
Started Aug 16, 2026, 10:07 PM UTC· resolved Aug 16, 2026, 10:29 PM UTC
- investigating Aug 16, 2026, 10:07 PM UTC
We are investigating reports of degraded performance affecting claude.ai and platform.claude.com. We will provide an update as soon as possible.
Major August 14, 2026 Elevated errors for Claude Fable 5 30m claude.ai
Started Aug 14, 2026, 11:57 PM UTC· resolved Aug 15, 2026, 12:27 AM UTC
- identified Aug 14, 2026, 11:57 PM UTC
We have identified the cause of elevated errors on requests to Claude Fable 5 and are working on a fix. We will provide an update as soon as possible.
- identified Aug 15, 2026, 12:20 AM UTC
We have identified the cause of the issue affecting claude.ai and are working on a fix. We will provide an update as soon as possible.
- identified Aug 15, 2026, 12:21 AM UTC
We have identified the cause of the issue affecting Claude services and are working on a fix. We will provide an update as soon as possible.
- resolved Aug 15, 2026, 12:27 AM UTC
The issue affecting Claude services has been resolved. Impact occurred from 20:00 Aug 14, 2026 to 00:11 Aug 15 , 2026 UTC.
Major August 13, 2026 Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5 1h 34m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 13, 2026, 02:33 PM UTC· resolved Aug 13, 2026, 04:08 PM UTC
- investigating Aug 13, 2026, 02:33 PM UTC
We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5. We will provide an update as soon as possible.
- investigating Aug 13, 2026, 03:44 PM UTC
We are investigating elevated errors on requests to Claude Mythos 5 and Claude Fable 5. We will provide an update as soon as possible.
- resolved Aug 13, 2026, 04:08 PM UTC
The issue affecting Claude Mythos 5 and Claude Fable 5 has been resolved.
Minor August 5, 2026 Degraded performance for Claude Opus 5 42m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 05, 2026, 01:51 PM UTC· resolved Aug 05, 2026, 02:34 PM UTC
- identified Aug 05, 2026, 01:51 PM UTC
We have identified the cause of elevated errors on requests to Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
- resolved Aug 05, 2026, 02:34 PM UTC
This incident has been resolved.
Minor August 5, 2026 Degraded performance of multiple models 7h 8m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 05, 2026, 07:05 AM UTC· resolved Aug 05, 2026, 02:14 PM UTC
- identified Aug 05, 2026, 07:05 AM UTC
We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
- identified Aug 05, 2026, 09:13 AM UTC
We are continuing to work on a fix for this issue.
- monitoring Aug 05, 2026, 01:08 PM UTC
A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
- resolved Aug 05, 2026, 02:14 PM UTC
This incident has been resolved.
Major August 4, 2026 Elevated errors across many models 1h 11m claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Started Aug 04, 2026, 08:48 PM UTC· resolved Aug 04, 2026, 09:59 PM UTC
- investigating Aug 04, 2026, 08:48 PM UTC
We are currently investigating this issue.
- investigating Aug 04, 2026, 09:04 PM UTC
We have identified an issue which resulted in some users experiencing issues when attempting to log into Anthropic services, including Claude.ai and Claude Code via oAuth. Additionally, some users saw errors when making requests to models. At this time, we have seen success rates recover and are monitoring closely to ensure there are no further issues.
- resolved Aug 04, 2026, 09:59 PM UTC
This issue has been resolved.
Minor August 4, 2026 Elevated errors on Claude Sonnet 5 24m claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code
Started Aug 04, 2026, 11:27 AM UTC· resolved Aug 04, 2026, 11:52 AM UTC
- investigating Aug 04, 2026, 11:27 AM UTC
We are currently investigating this issue.
- monitoring Aug 04, 2026, 11:37 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Aug 04, 2026, 11:52 AM UTC
This incident has been resolved.