# Anthropic in June 2026: incidents, uptime and changes

> Anthropic in June 2026: 48 incidents on its status page (10 major or critical), 73.91% free of major or critical incidents (vendor-reported), 1 CVE. From Rewindex’s archive of Anthropic’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/anthropic/2026/06
Last updated: 2026-10-25T23:10:00Z

- Incidents posted: 48 (major/critical: 10) · Maintenance: 0
- By vendor impact label: critical 2, major 8, minor 35, none 3
- Uptime (vendor-reported): 73.91% free of major/critical incidents, 69.60% free of any incident; outage time 7.8 days, incident time 9.1 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 1
- Previous month: [May 2026](https://rewindex.com/company/anthropic/2026/05.md) · Next: [July 2026](https://rewindex.com/company/anthropic/2026/07.md) · [All months](https://rewindex.com/company/anthropic/reports.md) · [Anthropic](https://rewindex.com/company/anthropic.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 |
| --- | --- | --- | --- | --- | --- |
| [We’ve suspended access to Claude Mythos 5 and Claude Fable 5](https://rewindex.com/company/anthropic/incidents/s9w82lp9dcn9.md) | critical | 2026-06-13 00:50 UTC | 2026-07-01 19:26 UTC | 19 d | resolved |
| [Elevated error rate across multiple models](https://rewindex.com/company/anthropic/incidents/jbhf20wjmzrf.md) | critical | 2026-06-23 14:19 UTC | 2026-06-23 16:44 UTC | 2.4 h | resolved |
| [Elevated errors on multiple models](https://rewindex.com/company/anthropic/incidents/zkr25thltwc9.md) | major | 2026-06-02 06:04 UTC | 2026-06-02 11:49 UTC | 5.8 h | resolved |
| [Issue affecting some Claude Code services](https://rewindex.com/company/anthropic/incidents/0w1blp7cngrr.md) | major | 2026-06-03 04:17 UTC | 2026-06-03 07:36 UTC | 3.3 h | resolved |
| [Elevated errors on many Claude models](https://rewindex.com/company/anthropic/incidents/fprlnsvdnr2k.md) | major | 2026-06-05 15:19 UTC | 2026-06-05 18:28 UTC | 3.1 h | resolved |
| [Fable not available in the model picker in Claude Code Desktop](https://rewindex.com/company/anthropic/incidents/wtcn4knnnfzc.md) | major | 2026-06-09 18:24 UTC | 2026-06-09 21:03 UTC | 2.6 h | resolved |
| [Elevated errors across models](https://rewindex.com/company/anthropic/incidents/j8ghp7dk6lym.md) | major | 2026-06-11 16:54 UTC | 2026-06-11 17:56 UTC | 1.0 h | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/41395mspl1rf.md) | major | 2026-06-16 20:50 UTC | 2026-06-16 22:02 UTC | 1.2 h | resolved |
| [Service disruption on Claude services](https://rewindex.com/company/anthropic/incidents/jlbvcpfwwq8z.md) | major | 2026-06-18 07:41 UTC | 2026-06-18 08:19 UTC | 38 min | resolved |
| [Elevated Error Rates for Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 4.6, and Haiku 4.5](https://rewindex.com/company/anthropic/incidents/lv35v0q9nsj2.md) | major | 2026-06-22 00:37 UTC | 2026-06-22 02:06 UTC | 1.5 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Opus 4.7 elevated errors](https://rewindex.com/company/anthropic/incidents/rk70zc69m54p.md) | minor | 2026-06-01 06:48 UTC | 2026-06-01 07:22 UTC | 34 min | resolved |
| [Sonnet 4.5 elevated errors](https://rewindex.com/company/anthropic/incidents/z4pz8z34hr4x.md) | minor | 2026-06-01 09:08 UTC | 2026-06-01 09:28 UTC | 20 min | resolved |
| [Elevated errors for Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/qc88nvqjv99m.md) | minor | 2026-06-01 12:15 UTC | 2026-06-01 13:33 UTC | 1.3 h | resolved |
| [Elevated errors on Claude Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/8p6f4r16xxmp.md) | minor | 2026-06-01 14:40 UTC | 2026-06-01 15:41 UTC | 1.0 h | resolved |
| [Degraded performance for Claude Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/vxp8fdrckj7q.md) | minor | 2026-06-01 18:28 UTC | 2026-06-01 19:06 UTC | 38 min | resolved |
| [Elevated errors on multiple models](https://rewindex.com/company/anthropic/incidents/zkr25thltwc9.md) | major | 2026-06-02 06:04 UTC | 2026-06-02 11:49 UTC | 5.8 h | resolved |
| [Issue affecting some Claude Code services](https://rewindex.com/company/anthropic/incidents/0w1blp7cngrr.md) | major | 2026-06-03 04:17 UTC | 2026-06-03 07:36 UTC | 3.3 h | resolved |
| [Elevated errors on Opus 4.7](https://rewindex.com/company/anthropic/incidents/thp2kyjx60qn.md) | minor | 2026-06-03 07:10 UTC | 2026-06-03 07:38 UTC | 28 min | resolved |
| [Elevated errors on many Claude models](https://rewindex.com/company/anthropic/incidents/fprlnsvdnr2k.md) | major | 2026-06-05 15:19 UTC | 2026-06-05 18:28 UTC | 3.1 h | resolved |
| [Opus 4.8 degraded service](https://rewindex.com/company/anthropic/incidents/b1gzqlnpxxxk.md) | minor | 2026-06-06 09:27 UTC | 2026-06-06 10:14 UTC | 47 min | resolved |
| [Elevated errors on Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/6ptd5skgmy3v.md) | minor | 2026-06-06 18:37 UTC | 2026-06-06 19:05 UTC | 28 min | resolved |
| [Degraded performance for multiple models](https://rewindex.com/company/anthropic/incidents/s4pq658bt69h.md) | minor | 2026-06-07 03:31 UTC | 2026-06-07 04:28 UTC | 57 min | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/1h2k3ryt64wl.md) | minor | 2026-06-07 14:35 UTC | 2026-06-07 15:41 UTC | 1.1 h | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/3n1flr3mnpgl.md) | minor | 2026-06-08 17:15 UTC | 2026-06-08 19:22 UTC | 2.1 h | resolved |
| [Elevated errors on Claude Haiku 4.5](https://rewindex.com/company/anthropic/incidents/829kf0y1f7pn.md) | minor | 2026-06-08 19:10 UTC | 2026-06-08 19:52 UTC | 42 min | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/8b7xx9g8rkhm.md) | minor | 2026-06-08 21:05 UTC | 2026-06-08 21:56 UTC | 51 min | resolved |
| [Elevated errors on Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/1gjynxqv85rk.md) | minor | 2026-06-08 22:20 UTC | 2026-06-08 22:36 UTC | 16 min | resolved |
| [Elevated errors on Claude Opus 4.8 (Fast Mode)](https://rewindex.com/company/anthropic/incidents/cmsxwks3fzd9.md) | minor | 2026-06-09 03:13 UTC | 2026-06-09 03:42 UTC | 29 min | resolved |
| [Fable not available in the model picker in Claude Code Desktop](https://rewindex.com/company/anthropic/incidents/wtcn4knnnfzc.md) | major | 2026-06-09 18:24 UTC | 2026-06-09 21:03 UTC | 2.6 h | resolved |
| [Elevated errors on Claude Opus 4.6](https://rewindex.com/company/anthropic/incidents/xwrtmlm3tnxf.md) | minor | 2026-06-09 20:32 UTC | 2026-06-09 22:10 UTC | 1.6 h | resolved |
| [Elevated errors on Claude Haiku 4.5](https://rewindex.com/company/anthropic/incidents/32lyxmplb5wz.md) | minor | 2026-06-10 13:06 UTC | 2026-06-10 17:21 UTC | 4.3 h | resolved |
| [Elevated errors on Claude Opus 4.6](https://rewindex.com/company/anthropic/incidents/sp7cf0cghqsk.md) | minor | 2026-06-11 14:37 UTC | 2026-06-11 15:01 UTC | 24 min | resolved |
| [Elevated errors across models](https://rewindex.com/company/anthropic/incidents/j8ghp7dk6lym.md) | major | 2026-06-11 16:54 UTC | 2026-06-11 17:56 UTC | 1.0 h | resolved |
| [We’ve suspended access to Claude Mythos 5 and Claude Fable 5](https://rewindex.com/company/anthropic/incidents/s9w82lp9dcn9.md) | critical | 2026-06-13 00:50 UTC | 2026-07-01 19:26 UTC | 19 d | resolved |
| [Elevated errors on Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/1trjx6gxk1bt.md) | minor | 2026-06-13 02:03 UTC | 2026-06-13 02:11 UTC | 8 min | resolved |
| [Elevated errors on Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/slm0mhv6r1pf.md) | minor | 2026-06-15 06:20 UTC | 2026-06-15 08:56 UTC | 2.6 h | resolved |
| [Elevated errors across many models](https://rewindex.com/company/anthropic/incidents/xmhsglsz3h3w.md) | minor | 2026-06-16 17:29 UTC | 2026-06-16 19:32 UTC | 2.0 h | resolved |
| [Opus 4.8 errors](https://rewindex.com/company/anthropic/incidents/8q88rrz9rjd0.md) | none | 2026-06-16 19:59 UTC | 2026-06-16 20:16 UTC | 17 min | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/41395mspl1rf.md) | major | 2026-06-16 20:50 UTC | 2026-06-16 22:02 UTC | 1.2 h | resolved |
| [Elevated errors on Claude Sonnet 4.6 and Opus 4.8](https://rewindex.com/company/anthropic/incidents/8chgzf3fs27n.md) | minor | 2026-06-17 00:47 UTC | 2026-06-17 02:50 UTC | 2.0 h | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/zw75lhl39skc.md) | minor | 2026-06-17 05:08 UTC | 2026-06-17 06:37 UTC | 1.5 h | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/k8563n9wd0r8.md) | minor | 2026-06-17 08:24 UTC | 2026-06-17 10:03 UTC | 1.6 h | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/s107yx224p9r.md) | minor | 2026-06-17 15:34 UTC | 2026-06-17 16:28 UTC | 54 min | resolved |
| [Service disruption on Claude services](https://rewindex.com/company/anthropic/incidents/jlbvcpfwwq8z.md) | major | 2026-06-18 07:41 UTC | 2026-06-18 08:19 UTC | 38 min | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/46z2bnxchg61.md) | minor | 2026-06-19 06:07 UTC | 2026-06-19 07:17 UTC | 1.2 h | resolved |
| [Elevated error rates on the Claude API](https://rewindex.com/company/anthropic/incidents/1p98mj17s1z2.md) | minor | 2026-06-19 08:17 UTC | 2026-06-19 08:45 UTC | 28 min | resolved |
| [Opus 4.8 errors](https://rewindex.com/company/anthropic/incidents/nbp7j8k3kgw2.md) | minor | 2026-06-20 17:07 UTC | 2026-06-20 18:02 UTC | 55 min | resolved |
| [Elevated Error Rates for Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 4.6, and Haiku 4.5](https://rewindex.com/company/anthropic/incidents/lv35v0q9nsj2.md) | major | 2026-06-22 00:37 UTC | 2026-06-22 02:06 UTC | 1.5 h | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/dymmnf6xk0mg.md) | minor | 2026-06-22 08:11 UTC | 2026-06-22 14:44 UTC | 6.5 h | resolved |
| [Elevated errors across many models](https://rewindex.com/company/anthropic/incidents/bbcpk0t2cj4p.md) | minor | 2026-06-22 19:14 UTC | 2026-06-22 19:45 UTC | 31 min | resolved |
| [Elevated errors for Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/2stpj60m2fr9.md) | minor | 2026-06-23 06:28 UTC | 2026-06-23 08:45 UTC | 2.3 h | resolved |
| [Elevated error rate across multiple models](https://rewindex.com/company/anthropic/incidents/jbhf20wjmzrf.md) | critical | 2026-06-23 14:19 UTC | 2026-06-23 16:44 UTC | 2.4 h | resolved |
| [Claude.ai is experiencing elevated error rates](https://rewindex.com/company/anthropic/incidents/18bq2kw867g5.md) | minor | 2026-06-23 18:24 UTC | 2026-06-23 18:32 UTC | 8 min | resolved |
| [Elevated error rate on Claude Opus 4.8](https://rewindex.com/company/anthropic/incidents/8b0rggdfh1hv.md) | minor | 2026-06-24 13:16 UTC | 2026-06-24 14:56 UTC | 1.7 h | resolved |
| [Elevated errors on Opus 4.8 Fast](https://rewindex.com/company/anthropic/incidents/wkzf38t1yh8z.md) | none | 2026-06-24 18:22 UTC | 2026-06-24 18:33 UTC | 11 min | resolved |
| [elevated errors on Opus 48](https://rewindex.com/company/anthropic/incidents/9284yk6xxd0h.md) | none | 2026-06-27 18:00 UTC | 2026-06-27 18:00 UTC | 0 min | resolved |
| [Elevated errors on Opus 4.5](https://rewindex.com/company/anthropic/incidents/lxpx271gkx7p.md) | minor | 2026-06-29 13:35 UTC | 2026-06-29 14:27 UTC | 52 min | resolved |
| [Elevated error rates on Opus 4.8](https://rewindex.com/company/anthropic/incidents/7ykkywg6yln4.md) | minor | 2026-06-30 14:31 UTC | 2026-06-30 15:28 UTC | 57 min | resolved |

## CVEs published

- [CVE-2026-7574](https://rewindex.com/cve/CVE-2026-7574.md) Anthropic Claude Desktop Cowork VM Image Contents Not Validated Before Use (CVSS 8.7), published 2026-06-23

## Cite this

Anthropic posted 48 status incidents in June 2026 (10 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/anthropic/2026/06
- Citation: Anthropic, “Anthropic in June 2026” (2026-06-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/anthropic/2026/06 (CC BY 4.0).
- Markdown link: `[Anthropic: Anthropic in June 2026 (2026-06-01)](https://rewindex.com/company/anthropic/2026/06)`


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Canonical: https://rewindex.com/company/anthropic/2026/06 · Markdown: https://rewindex.com/company/anthropic/2026/06.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T11:09:00.713Z