# Claude in January 2026: incidents, uptime and changes

> Claude in January 2026: 26 incidents on its status page (6 major or critical), 98.84% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Claude’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/claude/2026/01
Last updated: 2026-02-01T00:00:00Z

- Incidents posted: 26 (major/critical: 6) · Maintenance: 0
- By vendor impact label: critical 1, major 5, minor 20
- Uptime (vendor-reported): 98.84% free of major/critical incidents, 88.42% free of any incident; outage time 8 h 37 min, incident time 3.6 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [December 2025](https://rewindex.com/company/claude/2025/12.md) · Next: [February 2026](https://rewindex.com/company/claude/2026/02.md) · [All months](https://rewindex.com/company/claude/reports.md) · [Claude](https://rewindex.com/company/claude.md)

_Uptime: 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._

## Major and critical incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Elevated error rates on Opus 4.5 and Sonnet 4.5](https://rewindex.com/company/claude/incidents/tgzm3mf45wzc.md) | critical | 2026-01-14 08:34 UTC | 2026-01-14 14:17 UTC | 5.7 h | resolved |
| [Elevated rate of errors for multiple models](https://rewindex.com/company/claude/incidents/zt2q0ltqcvbx.md) | major | 2026-01-12 18:10 UTC | 2026-01-12 20:14 UTC | 2.1 h | resolved |
| [Increased rate of errors for Opus 4.5](https://rewindex.com/company/claude/incidents/s2g3slcdq9jk.md) | major | 2026-01-12 19:21 UTC | 2026-01-12 20:14 UTC | 53 min | resolved |
| [Elevated errors on claude.ai](https://rewindex.com/company/claude/incidents/ct82mw4kc0kt.md) | major | 2026-01-22 16:06 UTC | 2026-01-22 16:49 UTC | 43 min | resolved |
| [Claude Code Authentication Issues](https://rewindex.com/company/claude/incidents/58sxy43h7kvf.md) | major | 2026-01-22 16:22 UTC | 2026-01-22 16:49 UTC | 27 min | resolved |
| [Elevated error rates on claude.ai and API](https://rewindex.com/company/claude/incidents/713v1h3z2j5k.md) | major | 2026-01-22 22:19 UTC | 2026-01-22 22:26 UTC | 7 min | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Errors on requests to Haiku 3.5](https://rewindex.com/company/claude/incidents/m4bbg9f9lfjk.md) | minor | 2026-01-06 00:26 UTC | 2026-01-06 00:29 UTC | 3 min | resolved |
| [Elevated error rates on Opus 4.5](https://rewindex.com/company/claude/incidents/1y7x01b0ldlj.md) | minor | 2026-01-07 09:09 UTC | 2026-01-07 10:04 UTC | 55 min | resolved |
| [Claude subscription usage limits not visible in Claude.ai and Claude Code](https://rewindex.com/company/claude/incidents/4hr61fgdzbtc.md) | minor | 2026-01-07 19:07 UTC | 2026-01-08 05:06 UTC | 10.0 h | resolved |
| [Increased latency on Sonnet 4.5](https://rewindex.com/company/claude/incidents/jlg58yl731jj.md) | minor | 2026-01-08 17:23 UTC | 2026-01-08 21:57 UTC | 4.6 h | resolved |
| [New Subscription Activation & Payment Issues](https://rewindex.com/company/claude/incidents/pttlfp1vg4g3.md) | minor | 2026-01-09 19:41 UTC | 2026-01-10 04:55 UTC | 9.2 h | resolved |
| [Degraded performance for API requests involving structured outputs.](https://rewindex.com/company/claude/incidents/846yxgg3v8nr.md) | minor | 2026-01-10 03:37 UTC | 2026-01-10 06:38 UTC | 3.0 h | resolved |
| [Elevated error rates on Sonnet 4.5 1M context](https://rewindex.com/company/claude/incidents/cns634h0tfmv.md) | minor | 2026-01-10 14:33 UTC | 2026-01-10 15:41 UTC | 1.1 h | resolved |
| [Elevated rate of errors for multiple models](https://rewindex.com/company/claude/incidents/zt2q0ltqcvbx.md) | major | 2026-01-12 18:10 UTC | 2026-01-12 20:14 UTC | 2.1 h | resolved |
| [Increased rate of errors for Opus 4.5](https://rewindex.com/company/claude/incidents/s2g3slcdq9jk.md) | major | 2026-01-12 19:21 UTC | 2026-01-12 20:14 UTC | 53 min | resolved |
| [Increased rate of errors for Opus 4.5](https://rewindex.com/company/claude/incidents/09v917vcc8kg.md) | minor | 2026-01-13 07:27 UTC | 2026-01-13 07:49 UTC | 22 min | resolved |
| [Elevated error rates on Opus 4.5 and Sonnet 4.5](https://rewindex.com/company/claude/incidents/tgzm3mf45wzc.md) | critical | 2026-01-14 08:34 UTC | 2026-01-14 14:17 UTC | 5.7 h | resolved |
| [Compaction is having issues](https://rewindex.com/company/claude/incidents/6ykk5hyrg95v.md) | minor | 2026-01-15 07:28 UTC | 2026-01-15 17:02 UTC | 9.6 h | resolved |
| [Elevated errors on Claude Opus 4.5 and Sonnet 4.5](https://rewindex.com/company/claude/incidents/l3q16xnl4t2f.md) | minor | 2026-01-20 16:41 UTC | 2026-01-20 17:34 UTC | 53 min | resolved |
| [Elevated errors on Claude Sonnet 4.5](https://rewindex.com/company/claude/incidents/yrxt885v63jw.md) | minor | 2026-01-21 14:44 UTC | 2026-01-21 15:32 UTC | 48 min | resolved |
| [Elevated errors on claude.ai](https://rewindex.com/company/claude/incidents/ct82mw4kc0kt.md) | major | 2026-01-22 16:06 UTC | 2026-01-22 16:49 UTC | 43 min | resolved |
| [Claude Code Authentication Issues](https://rewindex.com/company/claude/incidents/58sxy43h7kvf.md) | major | 2026-01-22 16:22 UTC | 2026-01-22 16:49 UTC | 27 min | resolved |
| [Elevated error rates on claude.ai and API](https://rewindex.com/company/claude/incidents/713v1h3z2j5k.md) | major | 2026-01-22 22:19 UTC | 2026-01-22 22:26 UTC | 7 min | resolved |
| [Elevated errors: Invalid \`signature\` in \`thinking\` block](https://rewindex.com/company/claude/incidents/5dvcj03m4d57.md) | minor | 2026-01-23 05:09 UTC | 2026-01-23 07:47 UTC | 2.6 h | resolved |
| [Increased rate of errors for Opus 4.5](https://rewindex.com/company/claude/incidents/1f8s9zn12cfh.md) | minor | 2026-01-25 08:05 UTC | 2026-01-26 14:32 UTC | 30 h | resolved |
| [Elevated errors on Claude Haiku 3.5](https://rewindex.com/company/claude/incidents/nkwk08nf2259.md) | minor | 2026-01-27 14:23 UTC | 2026-01-27 14:56 UTC | 33 min | resolved |
| [Degraded performance on Claude Console](https://rewindex.com/company/claude/incidents/833cdm540lld.md) | minor | 2026-01-27 22:28 UTC | 2026-01-27 23:07 UTC | 39 min | resolved |
| [Elevated errors on Claude Sonnet 3.7](https://rewindex.com/company/claude/incidents/8wbm1h0pk78b.md) | minor | 2026-01-28 10:13 UTC | 2026-01-28 10:36 UTC | 23 min | resolved |
| [Elevated errors on Claude Opus 4.5](https://rewindex.com/company/claude/incidents/jg3crnxm1j28.md) | minor | 2026-01-28 11:30 UTC | 2026-01-28 12:30 UTC | 1.0 h | resolved |
| [Elevated errors on Claude Opus 4.5](https://rewindex.com/company/claude/incidents/5nq70md45xh4.md) | minor | 2026-01-28 13:52 UTC | 2026-01-28 14:14 UTC | 22 min | resolved |
| [Some users are experiencing delays in purchasing additional API credits](https://rewindex.com/company/claude/incidents/29wh90pcv3r1.md) | minor | 2026-01-29 19:10 UTC | 2026-01-29 20:39 UTC | 1.5 h | resolved |
| [Some users are experiencing memory leaks in Claude Code 2.1.27](https://rewindex.com/company/claude/incidents/rl6pphjrc2r4.md) | minor | 2026-01-31 20:18 UTC | 2026-01-31 21:06 UTC | 48 min | resolved |

## Cite this

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

- Canonical URL: https://rewindex.com/company/claude/2026/01
- Citation: Claude, “Claude in January 2026” (2026-01-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/claude/2026/01 (CC BY 4.0).
- Markdown link: `[Claude: Claude in January 2026 (2026-01-01)](https://rewindex.com/company/claude/2026/01)`


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Canonical: https://rewindex.com/company/claude/2026/01 · Markdown: https://rewindex.com/company/claude/2026/01.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:58:59.610Z