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CompaniesAnthropicMonthly reportsMay 2026

Anthropic in May 2026: incidents, uptime and changes

41incidents posted
17labelled major or critical
94.76%free of major/critical
92.10%free of any incident
0price changes
0notable page changes

Vendor-reported outage time 38 h 58 min, incident time 2.4 days. Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours. Last 90 days.

By vendor label: Major 17 · Minor 23 · No impact listed 1

Major and critical incidents 17

IncidentImpactStartedDurationStatusDay
Elevated errors across multiple modelsMajor1.4 hresolved05-06
Connection failures for organizations restricting GitHub access by IP addressMajor18 hresolved05-06
Elevated errors across Claude ModelsMajor1.9 hresolved05-08
Claude Code IDE extension unable to load on WindowsMajor1.9 hresolved05-08
Elevated errors for Claude Sonnet 4.6 and Haiku 4.5Major37 minresolved05-12
Elevated errors on Claude Opus 4.7Major20 minresolved05-12
Claude.ai is experiencing elevated error ratesMajor32 minresolved05-13
Claude.ai is experiencing elevated error ratesMajor2.4 hresolved05-13
Elevated error rates on requests to some modelsMajor1.5 hresolved05-15
Elevated error rates on requests to multiple modelsMajor16 minresolved05-16
Elevated errors for Claude Opus 4.7Major9 minresolved05-18
Elevated errors on Claude Opus 4.7Major1.6 hresolved05-19
Elevated error rate on multiple modelsMajor4.6 hresolved05-22
Elevated errors on Claude Opus 4.7Major57 minresolved05-27
Elevated errors on Claude Opus 4.7Major1.6 hresolved05-27
Elevated errors on Claude Opus 4.7Major39 minresolved05-28
Elevated errors for Claude Opus 4.8Major37 minresolved05-29

Other incidents 24

IncidentImpactStartedDurationStatusDay
Elevated errors on Claude Opus 4.5Minor1.7 hresolved05-04
Elevated errors on Claude Opus 4.5 and Sonnet 4.5Minor46 minresolved05-04
Elevated errors on Claude Opus 4.7Minor26 minresolved05-04
Elevated errors on Claude Opus 4.7Minor35 minresolved05-07
Elevated Errors on File OperationsMinor1.1 hresolved05-08
Elevated errors on Claude Sonnet 4.6Minor8 minresolved05-08
Elevated errors on Claude Opus 4.7Minor24 minresolved05-08
Elevated errors on Claude Opus 4.1Minor25 minresolved05-09
Claude Code on the Web Partial OutageMinor18 minresolved05-09
Elevated Error Rate for Vaults and CredentialsMinor10 minresolved05-12
Elevated errors on Claude Opus 4.7Minor1.9 hresolved05-14
Elevated errors on Claude Haiku 4.5Minor1.9 hresolved05-18
Elevated errors on Claude.ai and Claude Code loginMinor5 minresolved05-19
Elevated errors on Claude Haiku 4.5Minor1.5 hresolved05-19
Elevated errors on Claude Opus 4.7Minor1.4 hresolved05-19
Elevated errors on Claude Haiku 4.5Minor35 minresolved05-20
Elevated errors on Claude Opus 4.7Minor1.4 hresolved05-20
Elevated errors on Claude.aiMinor44 minresolved05-21
Elevated errors on Claude Opus 4.7Minor14 minresolved05-22
Elevated error rates on Opus 4.7No impact listed7 minresolved05-25
Elevated errors for Claude Code in SlackMinor3.4 hresolved05-26
Billing and subscription management issuesMinor19 minresolved05-28
Elevated errors on Claude Opus 4.8Minor15 minresolved05-29
opus 4.7 elevated errorsMinor1.3 hresolved05-30

Cite this

Anthropic posted 41 status incidents in May 2026 (17 major or critical); 0 price changes and 0 notable page changes observed.

Title
Anthropic in May 2026
Vendor
Anthropic
Date
URL
https://rewindex.com/company/anthropic/2026/05

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