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CompaniesClaudeMonthly reportsJanuary 2026

Claude in January 2026: incidents, uptime and changes

26incidents posted
6labelled major or critical
98.84%free of major/critical
88.42%free of any incident
0price changes
0notable page changes

Vendor-reported outage time 8 h 37 min, incident time 3.6 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: Critical 1 · Major 5 · Minor 20

Major and critical incidents 6

IncidentImpactStartedDurationStatusDay
Elevated error rates on Opus 4.5 and Sonnet 4.5Critical5.7 hresolved01-14
Elevated rate of errors for multiple modelsMajor2.1 hresolved01-12
Increased rate of errors for Opus 4.5Major53 minresolved01-12
Elevated errors on claude.aiMajor43 minresolved01-22
Claude Code Authentication IssuesMajor27 minresolved01-22
Elevated error rates on claude.ai and APIMajor7 minresolved01-22

Other incidents 20

IncidentImpactStartedDurationStatusDay
Errors on requests to Haiku 3.5Minor3 minresolved01-06
Elevated error rates on Opus 4.5Minor55 minresolved01-07
Claude subscription usage limits not visible in Claude.ai and Claude CodeMinor10.0 hresolved01-07
Increased latency on Sonnet 4.5Minor4.6 hresolved01-08
New Subscription Activation & Payment IssuesMinor9.2 hresolved01-09
Degraded performance for API requests involving structured outputs.Minor3.0 hresolved01-10
Elevated error rates on Sonnet 4.5 1M contextMinor1.1 hresolved01-10
Increased rate of errors for Opus 4.5Minor22 minresolved01-13
Compaction is having issuesMinor9.6 hresolved01-15
Elevated errors on Claude Opus 4.5 and Sonnet 4.5Minor53 minresolved01-20
Elevated errors on Claude Sonnet 4.5Minor48 minresolved01-21
Elevated errors: Invalid `signature` in `thinking` blockMinor2.6 hresolved01-23
Increased rate of errors for Opus 4.5Minor30 hresolved01-25
Elevated errors on Claude Haiku 3.5Minor33 minresolved01-27
Degraded performance on Claude ConsoleMinor39 minresolved01-27
Elevated errors on Claude Sonnet 3.7Minor23 minresolved01-28
Elevated errors on Claude Opus 4.5Minor1.0 hresolved01-28
Elevated errors on Claude Opus 4.5Minor22 minresolved01-28
Some users are experiencing delays in purchasing additional API creditsMinor1.5 hresolved01-29
Some users are experiencing memory leaks in Claude Code 2.1.27Minor48 minresolved01-31

Cite this

Claude posted 26 status incidents in January 2026 (6 major or critical); 0 price changes and 0 notable page changes observed.

Title
Claude in January 2026
Vendor
Claude
Date
URL
https://rewindex.com/company/claude/2026/01

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