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Degraded performance on claude.ai and Claude Code

2026年9月1日 05:36

Aug 31, 20:36 UTC
Resolved - The issue affecting Claude Code has been resolved. Impact occurred from 16∶55 to 19∶16 UTC.

Aug 31, 19:21 UTC
Investigating - 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.

Degraded performance on claude.ai

2026年9月1日 02:52

Aug 31, 17:52 UTC
Resolved - This issue has been resolved.

Aug 31, 17:32 UTC
Monitoring - We have seen success rates return to normal for requests on Claude.ai and are monitoring closely.

Aug 31, 17:23 UTC
Investigating - We are investigating reports of elevated errors affecting chats on claude.ai. We will provide an update as soon as possible.

Elevated errors on Claude Code and Claude Cowork

2026年8月29日 05:21

Aug 28, 20:21 UTC
Resolved - The issue affecting Claude Cowork and Claude Code on the web has been resolved.

Aug 28, 18:21 UTC
Monitoring - A mitigation has been applied for the issue affecting Claude Cowork and Claude Code on the web, and we are monitoring for recovery. Sessions that disconnected earlier can be retried

Aug 28, 17:22 UTC
Identified - We have identified an issue with an upstream cloud provider affecting Claude Cowork and Claude Code on the web. Some sessions may fail to start or disconnect mid-task; affected sessions can be retried. We are in contact with the provider and will provide an update as soon as possible.

Issues logging into Claude.ai

2026年8月25日 05:26

Aug 24, 20:26 UTC
Resolved - This issue has been resolved.

Aug 24, 20:11 UTC
Monitoring - 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.

Errors logging into Claude.ai

2026年8月25日 02:16

Aug 24, 17:16 UTC
Resolved - This issue has been resolved.

Aug 24, 17:12 UTC
Investigating - 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.

Elevated errors for multiple models

2026年8月24日 17:30

Aug 24, 08:30 UTC
Resolved - This issue has been resolved. From 9:50pm PT / 04:50 UTC through 00:36am PT / 07:36 UTC, users saw elevated errors on requests to Claude models, including Claude Opus 5 and Fable 5.

Aug 24, 07:47 UTC
Update - At this time, we have seen errors stabilize on Opus 5 and Fable 5, and are working to fully resolve success rates on all affected models. We will provide an update as soon as possible.

Aug 24, 06:42 UTC
Update - We are continuing to work to resolve issues causing elevated requests on multiple models. We will provide an update as soon as possible.

Aug 24, 05:27 UTC
Identified - We have identified the cause of elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, and other Claude models and are working on a fix. We will provide an update as soon as possible.

Aug 24, 05:06 UTC
Investigating - We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, and Claude Opus 4.8. We will provide an update as soon as possible.

Elevated errors on Google connectors

2026年8月21日 04:01

Aug 20, 19:01 UTC
Resolved - This issue has been resolved.

Aug 20, 18:32 UTC
Investigating - 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.

Degraded performance for Claude Opus 5 and Claude Haiku 4.5

2026年8月19日 20:02

Aug 19, 11:02 UTC
Resolved - This incident has been resolved.

Aug 19, 10:33 UTC
Monitoring - A fix has been implemented and we are monitoring the results.

Aug 19, 09:42 UTC
Identified - 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.

Degraded performance for multiple models

2026年8月19日 04:01

Aug 18, 19:01 UTC
Resolved - The issue affecting Claude Opus 5 has been resolved. Impact occurred from 16:11 to 18:23 UTC.

Aug 18, 18:26 UTC
Monitoring - A fix has been implemented and we are monitoring the results.

Aug 18, 17:12 UTC
Update - We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.

Aug 18, 16:20 UTC
Update - 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.

Aug 18, 16:20 UTC
Investigating - We are investigating reports of degraded performance affecting multiple models. We will provide an update as soon as possible.

Degraded performance for Claude Opus 5, Claude Sonnet 5

2026年8月18日 00:29

Aug 17, 15:29 UTC
Resolved - This incident has been resolved.

Aug 17, 14:39 UTC
Monitoring - A fix has been implemented and we are monitoring the results.

Aug 17, 14:25 UTC
Update - Claude Opus 5 is operational. Claude Sonnet 5 is degraded. We are investigating.

Aug 17, 13:56 UTC
Investigating - We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.

Service disruption on Claude services

2026年8月17日 07:07

🤖 AI Summary

Claudeサービスでサービス障害が発生しました。以下の内容を要約します:

1. **日時と状況**: 2026年8月16日22:07 UTCに、クラウドAIやプラットフォームClaude.comなどでのパフォーマンス低下について報告がありました。

2. **影響範囲**: この障害はclaude.ai、Claudeコンソール(platform.claude.com)、Claude API(api.anthropic.com)、Claude Code、およびClaude Coworkに及んでいます。

3. **対応**: 目前、原因究明中であり、速やかに更新が提供される予定です。

4. **通知サービス**: 事態の最新情報を受け取るためには、メールまたはSMSによる通知登録が必要です。詳細はサイト内から行うことができます。

この概要で、主な情報を把握することができます。

Aug 16, 22:07 UTC
Investigating - We are investigating reports of degraded performance affecting claude.ai and platform.claude.com. We will provide an update as soon as possible.

Service disruption on Claude services

2026年8月17日 07:34

Aug 16, 22:34 UTC
Resolved - The issue affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork has been resolved.

Aug 16, 22:22 UTC
Monitoring - A fix has been deployed for the issue affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork and we are monitoring for recovery.

Aug 16, 22:02 UTC
Update - 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.

Aug 16, 21:58 UTC
Investigating - We are investigating an issue with users authenticating to claude.ai, Claude Code, and Claude Cowork. We will provide an update as soon as possible.

Elevated errors for Claude Fable 5

2026年8月15日 09:27

Aug 15, 00:27 UTC
Resolved - The issue affecting Claude services has been resolved. Impact occurred from 20:00 Aug 14, 2026 to 00:11 Aug 15 , 2026 UTC.

Aug 15, 00:21 UTC
Update - 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.

Aug 15, 00:20 UTC
Update - 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.

Aug 14, 23:57 UTC
Identified - 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.

Service disruption on Claude services

2026年8月15日 06:58

Aug 14, 21:58 UTC
Resolved - The issue affecting the Claude API, Claude Code, and Claude Cowork has been resolved. Impact occurred from 20:14 to 20:38 UTC.

Aug 14, 20:44 UTC
Monitoring - A fix has been deployed for the issue affecting the Claude API, Claude Code, and Claude Cowork and we are monitoring for recovery.

Aug 14, 20:44 UTC
Identified - We have identified the cause of the issue affecting the Claude API, Claude Code, and Claude Cowork and are working on a fix. We will provide an update as soon as possible.

Aug 14, 20:30 UTC
Investigating - We are investigating reports of degraded performance affecting the Claude API, Claude Code, and Claude Cowork. We will provide an update as soon as possible.

Issues reaching status.claude.com

2026年8月14日 19:53

Aug 14, 10:53 UTC
Resolved - The issue resulting in users being unable to reach status.claude.com has been resolved.

Aug 14, 07:58 UTC
Investigating - We are aware of issues with reaching status.claude.com, specifically regarding an invalid certificate issues. We are working to resolve these issues as soon as possible.

Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5

2026年8月14日 01:08

Aug 13, 16:08 UTC
Resolved - The issue affecting Claude Mythos 5 and Claude Fable 5 has been resolved.

Aug 13, 15:44 UTC
Update - We are investigating elevated errors on requests to Claude Mythos 5 and Claude Fable 5. We will provide an update as soon as possible.

Aug 13, 14:33 UTC
Investigating - 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.

Degraded performance for multiple models

2026年8月13日 03:07

Aug 12, 18:07 UTC
Resolved - This issue has been resolved.

Aug 12, 17:28 UTC
Update - We are continuing to work to resolve an issue resulting in slightly elevated errors on requests to Claude Fable 5. We will provide an update as soon as possible.

Aug 12, 16:10 UTC
Identified - We have identified an issue which resulted in errors across multiple models. At this time, errors are primarily impacting Claude Fable 5 and we are working to fully resolve these issues.

Aug 12, 13:50 UTC
Investigating - We are investigating elevated errors on requests to multiple models. We will provide an update as soon as possible.

Degraded performance for Claude Opus 5

2026年8月5日 23:34

Aug 5, 14:34 UTC
Resolved - This incident has been resolved.

Aug 5, 13:51 UTC
Identified - 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.

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