AnthropicOutage history and postmortems
Downtime, added up
Anthropic: 2d 9h weighted downtime in range, category median 7h 38m.
94 incidents, 9d 17h of incident time (6d 2h major or critical, 3d 14h partial) between Jun 27, 2026 and Sep 24, 2026.
Anthropic, PBC is an American artificial intelligence (AI) public benefit corporation headquartered in San Francisco, California. Its flagship product is Claude, a series of proprietary large language models (LLMs).
Anthropic incidents
400 on fileElevated errors for multiple modelsSep 22, 2026, 00:571h 38mMajorNot disclosed
Issues with Google Play subscriptionsSep 16, 2026, 16:1833mInformationalNot disclosed
Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1Sep 15, 2026, 09:481h 26mMajorNot disclosed
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1Sep 11, 2026, 14:1917mMajorNot disclosed
Elevated latency on the Claude API for some usersSep 10, 2026, 21:431h 41mMinorNot disclosed
Degraded functionality for Claude Cowork on WindowsSep 10, 2026, 15:544d 3hMajorNot disclosed
Elevated errors for multiple modelsSep 3, 2026, 13:262h 57mMajorNot disclosed
Elevated errors for Claude Sonnet 5Sep 3, 2026, 12:3719mMajorNot disclosed
Elevated errors for Claude Sonnet 5Sep 2, 2026, 21:1726mMajorNot disclosed
Delays in credit purchasesSep 1, 2026, 23:261h 58mMinorNot disclosed
Degraded performance on platform.claude.com and Claude for Microsoft Office 365Sep 1, 2026, 17:051h 2mMinorNot disclosed
Degraded performance on Claude for Microsoft Office 365Sep 1, 2026, 16:0220mMinorNot disclosed
Degraded performance on claude.ai and Claude CodeAug 31, 2026, 19:211h 14mMinorNot disclosed
Degraded performance on claude.aiAug 31, 2026, 17:2329mMinorNot disclosed
Elevated errors on Claude Code and Claude CoworkAug 28, 2026, 17:222h 59mMajorNot disclosed
Issues logging into Claude.aiAug 24, 2026, 20:1115mMinorNot disclosed
Errors logging into Claude.aiAug 24, 2026, 17:123mMinorNot disclosed
Elevated errors for multiple modelsAug 24, 2026, 05:063h 24mMajorNot disclosed
Elevated errors on requests to multiple modelsAug 20, 2026, 19:1626mMajorNot disclosed
Elevated errors on Google connectorsAug 20, 2026, 18:3229mMinorNot disclosed
Degraded performance for Claude Opus 5 and Claude Haiku 4.5Aug 19, 2026, 09:421h 20mMinorNot disclosed
Degraded performance for multiple modelsAug 18, 2026, 16:202h 41mMinorNot disclosed
Degraded performance for Claude Opus 5, Claude Sonnet 5Aug 17, 2026, 13:561h 33mMinorNot disclosed
Service disruption on Claude servicesAug 16, 2026, 21:5836mCriticalNot disclosed
Elevated errors for Claude Fable 5Aug 14, 2026, 23:5730mMajorNot disclosed
Service disruption on Claude servicesAug 14, 2026, 20:301h 28mMajorNot disclosed
Issues reaching status.claude.comAug 14, 2026, 07:582h 55mInformationalNot disclosed
Service disruption on Claude Code on the web and related servicesAug 14, 2026, 00:3615mMinorNot disclosed
Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5Aug 13, 2026, 14:331h 35mMajorNot disclosed
Degraded performance for multiple modelsAug 12, 2026, 13:504h 17mMinorNot disclosed
Questions
Is Anthropic down right now?
Check Anthropic's own status page at https://status.claude.com for the live state. This page shows Anthropic's incident history from that page; the most recent incident started 2026-09-22: "Elevated errors for multiple models".
How often does Anthropic have outages?
Anthropic posted 94 incidents in the last 90 days and 400 in the last year, 31 of them major or critical in the last 90 days. The median incident lasted 1h.
When was Anthropic's last major outage?
2026-09-22: "Elevated errors for multiple models", lasting 1h 38m.
What usually causes Anthropic incidents?
Anthropic's status updates in this period do not name a root cause.
From vendors' own status pages and disclosures. Times as reported. Logos via logo.dev; trademarks belong to their owners.