# Anthropic in April 2026: incidents, uptime and changes

> Anthropic in April 2026: 49 incidents on its status page (16 major or critical), 97.34% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Anthropic’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/anthropic/2026/04
Last updated: 2026-05-01T00:00:00Z

- Incidents posted: 49 (major/critical: 16) · Maintenance: 0
- By vendor impact label: critical 5, major 11, minor 25, none 8
- Uptime (vendor-reported): 97.34% free of major/critical incidents, 94.24% free of any incident; outage time 19 h 5 min, incident time 41 h 26 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [March 2026](https://rewindex.com/company/anthropic/2026/03.md) · Next: [May 2026](https://rewindex.com/company/anthropic/2026/05.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 |
| --- | --- | --- | --- | --- | --- |
| [Elevated errors on Claude.ai](https://rewindex.com/company/anthropic/incidents/124yr07585k9.md) | critical | 2026-04-07 14:32 UTC | 2026-04-07 15:59 UTC | 1.4 h | resolved |
| [Claude.ai down](https://rewindex.com/company/anthropic/incidents/6jd2m42f8mld.md) | critical | 2026-04-13 15:40 UTC | 2026-04-13 16:35 UTC | 55 min | resolved |
| [Elevated errors on Claude.ai, API, Claude Code](https://rewindex.com/company/anthropic/incidents/f00h6l76tsjs.md) | critical | 2026-04-15 14:53 UTC | 2026-04-15 17:42 UTC | 2.8 h | resolved |
| [Elevated errors on Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/wlysnq540b32.md) | critical | 2026-04-24 02:55 UTC | 2026-04-24 03:34 UTC | 39 min | resolved |
| [claude.ai and API unavailable](https://rewindex.com/company/anthropic/incidents/2gf1jpyty350.md) | critical | 2026-04-30 01:20 UTC | 2026-04-30 01:51 UTC | 31 min | resolved |
| [Elevated timeouts on requests to Claude Opus 4.6 and Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/fvj2fgqrchsj.md) | major | 2026-04-01 07:01 UTC | 2026-04-01 07:01 UTC | 0 min | resolved |
| [Elevated errors on requests to Claude Opus 4.6](https://rewindex.com/company/anthropic/incidents/3bg93cy9bk1v.md) | major | 2026-04-01 09:06 UTC | 2026-04-01 10:40 UTC | 1.6 h | resolved |
| [Errors on the Claude.ai desktop application](https://rewindex.com/company/anthropic/incidents/z22j49ktx41d.md) | major | 2026-04-01 22:15 UTC | 2026-04-01 22:16 UTC | 1 min | resolved |
| [Elevated errors on requests to Claude Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/fznql3y9tpn7.md) | major | 2026-04-03 18:12 UTC | 2026-04-03 19:21 UTC | 1.1 h | resolved |
| [Elevated errors on Claude.ai](https://rewindex.com/company/anthropic/incidents/vfjv5x6qkd4j.md) | major | 2026-04-06 15:45 UTC | 2026-04-06 17:16 UTC | 1.5 h | resolved |
| [Sonnet 4.6 elevated rate of errors](https://rewindex.com/company/anthropic/incidents/lhws0phdvzz3.md) | major | 2026-04-08 06:23 UTC | 2026-04-08 09:33 UTC | 3.2 h | resolved |
| [Email login down](https://rewindex.com/company/anthropic/incidents/qcfvv041lb1k.md) | major | 2026-04-11 00:00 UTC | 2026-04-11 00:00 UTC | 0 min | resolved |
| [Claude Cowork not starting for some users](https://rewindex.com/company/anthropic/incidents/qj05p69fff9h.md) | major | 2026-04-16 19:24 UTC | 2026-04-16 21:29 UTC | 2.1 h | resolved |
| [Claude Sonnet 4.5 error spike](https://rewindex.com/company/anthropic/incidents/8rg3l7v56ngc.md) | major | 2026-04-20 06:14 UTC | 2026-04-20 07:25 UTC | 1.2 h | resolved |
| [Issues with sign-ups on platform.claude.com](https://rewindex.com/company/anthropic/incidents/s0lttkq5mmt2.md) | major | 2026-04-24 17:03 UTC | 2026-04-24 17:32 UTC | 29 min | resolved |
| [Claude.ai unavailable and elevated errors on the API](https://rewindex.com/company/anthropic/incidents/9l93x2ht4s5w.md) | major | 2026-04-28 17:41 UTC | 2026-04-28 19:15 UTC | 1.6 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Elevated errors and latency on Claude Haiku 4.5](https://rewindex.com/company/anthropic/incidents/cbffv7jf2jck.md) | minor | 2026-04-01 01:27 UTC | 2026-04-01 02:14 UTC | 47 min | resolved |
| [Elevated timeouts on requests to Claude Opus 4.6 and Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/fvj2fgqrchsj.md) | major | 2026-04-01 07:01 UTC | 2026-04-01 07:01 UTC | 0 min | resolved |
| [Elevated errors on requests to Claude Opus 4.6](https://rewindex.com/company/anthropic/incidents/3bg93cy9bk1v.md) | major | 2026-04-01 09:06 UTC | 2026-04-01 10:40 UTC | 1.6 h | resolved |
| [Errors on the Claude.ai desktop application](https://rewindex.com/company/anthropic/incidents/z22j49ktx41d.md) | major | 2026-04-01 22:15 UTC | 2026-04-01 22:16 UTC | 1 min | resolved |
| [Elevated errors on requests to Claude Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/fznql3y9tpn7.md) | major | 2026-04-03 18:12 UTC | 2026-04-03 19:21 UTC | 1.1 h | resolved |
| [Sonnet 4.6 and Opus 4.6 elevated error rate](https://rewindex.com/company/anthropic/incidents/7n7xgqws441v.md) | none | 2026-04-04 17:30 UTC | 2026-04-04 17:30 UTC | 0 min | resolved |
| [Elevated errors on Claude.ai](https://rewindex.com/company/anthropic/incidents/vfjv5x6qkd4j.md) | major | 2026-04-06 15:45 UTC | 2026-04-06 17:16 UTC | 1.5 h | resolved |
| [Sonnet 4.6 elevated rate of errors](https://rewindex.com/company/anthropic/incidents/xmqkb966qt1h.md) | minor | 2026-04-06 21:26 UTC | 2026-04-06 21:45 UTC | 19 min | resolved |
| [Elevated errors on Claude.ai](https://rewindex.com/company/anthropic/incidents/124yr07585k9.md) | critical | 2026-04-07 14:32 UTC | 2026-04-07 15:59 UTC | 1.4 h | resolved |
| [Sonnet 4.6 elevated rate of errors](https://rewindex.com/company/anthropic/incidents/lhws0phdvzz3.md) | major | 2026-04-08 06:23 UTC | 2026-04-08 09:33 UTC | 3.2 h | resolved |
| [Elevated errors on Claude.ai, API, Claude Code](https://rewindex.com/company/anthropic/incidents/5f418rpyb84x.md) | minor | 2026-04-08 17:46 UTC | 2026-04-08 17:50 UTC | 4 min | resolved |
| [Outage affecting Workspace Creation](https://rewindex.com/company/anthropic/incidents/z0bqmftj68dr.md) | none | 2026-04-08 19:22 UTC | 2026-04-08 19:40 UTC | 18 min | resolved |
| [Errors when connecting to Claude.ai](https://rewindex.com/company/anthropic/incidents/hsgj6gh6rlck.md) | none | 2026-04-08 23:57 UTC | 2026-04-08 23:57 UTC | 0 min | resolved |
| [Sonnet 4.6 elevated rate of errors](https://rewindex.com/company/anthropic/incidents/v0t3z924dbhg.md) | minor | 2026-04-09 08:07 UTC | 2026-04-09 08:53 UTC | 46 min | resolved |
| [Elevated Connector Error Rates](https://rewindex.com/company/anthropic/incidents/cb0h2zyzl0kd.md) | minor | 2026-04-09 16:54 UTC | 2026-04-09 17:34 UTC | 40 min | resolved |
| [Degraded Performance on Vaults](https://rewindex.com/company/anthropic/incidents/2z4mf00ffcwd.md) | minor | 2026-04-10 04:28 UTC | 2026-04-10 04:38 UTC | 10 min | resolved |
| [Some Claude.ai share links were inaccessible](https://rewindex.com/company/anthropic/incidents/ccm8hy0pld48.md) | minor | 2026-04-10 14:00 UTC | 2026-04-10 14:00 UTC | 0 min | resolved |
| [Elevated errors on requests to Claude models](https://rewindex.com/company/anthropic/incidents/411xbc51v608.md) | minor | 2026-04-10 16:30 UTC | 2026-04-10 16:51 UTC | 21 min | resolved |
| [Email login down](https://rewindex.com/company/anthropic/incidents/qcfvv041lb1k.md) | major | 2026-04-11 00:00 UTC | 2026-04-11 00:00 UTC | 0 min | resolved |
| [Claude.ai down](https://rewindex.com/company/anthropic/incidents/6jd2m42f8mld.md) | critical | 2026-04-13 15:40 UTC | 2026-04-13 16:35 UTC | 55 min | resolved |
| [Degraded service on usage and analytics admin API endpoints](https://rewindex.com/company/anthropic/incidents/w3389p5qg7kp.md) | minor | 2026-04-14 09:24 UTC | 2026-04-14 15:21 UTC | 6.0 h | resolved |
| [Elevated errors on Claude.ai, API, Claude Code](https://rewindex.com/company/anthropic/incidents/f00h6l76tsjs.md) | critical | 2026-04-15 14:53 UTC | 2026-04-15 17:42 UTC | 2.8 h | resolved |
| [Opus 4.6 elevated rate of errors](https://rewindex.com/company/anthropic/incidents/7jbzthbc1dwr.md) | minor | 2026-04-16 06:50 UTC | 2026-04-16 07:43 UTC | 53 min | resolved |
| [Claude Cowork not starting for some users](https://rewindex.com/company/anthropic/incidents/qj05p69fff9h.md) | major | 2026-04-16 19:24 UTC | 2026-04-16 21:29 UTC | 2.1 h | resolved |
| [Failures to add Credentials to Vaults](https://rewindex.com/company/anthropic/incidents/fkltkq8kgjkh.md) | minor | 2026-04-16 22:26 UTC | 2026-04-16 22:41 UTC | 15 min | resolved |
| [Errors uploading documents to Google Drive in Claude.ai](https://rewindex.com/company/anthropic/incidents/4t4qg3vkrz6z.md) | minor | 2026-04-17 18:59 UTC | 2026-04-17 19:56 UTC | 57 min | resolved |
| [Elevated errors on Opus 4.6](https://rewindex.com/company/anthropic/incidents/34yy5hskyw2v.md) | none | 2026-04-19 22:44 UTC | 2026-04-20 00:00 UTC | 1.3 h | resolved |
| [Claude Sonnet 4.5 error spike](https://rewindex.com/company/anthropic/incidents/8rg3l7v56ngc.md) | major | 2026-04-20 06:14 UTC | 2026-04-20 07:25 UTC | 1.2 h | resolved |
| [Elevated errors for uploading files](https://rewindex.com/company/anthropic/incidents/8482mmb5n1n1.md) | minor | 2026-04-20 13:31 UTC | 2026-04-20 14:21 UTC | 50 min | resolved |
| [MCP apps unavailable on Claude.ai](https://rewindex.com/company/anthropic/incidents/9tyl1z4b03cs.md) | minor | 2026-04-23 00:41 UTC | 2026-04-23 02:09 UTC | 1.5 h | resolved |
| [Issues with responses using structured outputs on the API](https://rewindex.com/company/anthropic/incidents/t6v0k97s0802.md) | none | 2026-04-23 02:00 UTC | 2026-04-23 02:00 UTC | 0 min | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/1gz3fcvd76fx.md) | minor | 2026-04-23 15:29 UTC | 2026-04-23 15:59 UTC | 30 min | resolved |
| [Elevated errors on Sonnet 4.6](https://rewindex.com/company/anthropic/incidents/wlysnq540b32.md) | critical | 2026-04-24 02:55 UTC | 2026-04-24 03:34 UTC | 39 min | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/1mx31vhgl3ms.md) | minor | 2026-04-24 10:06 UTC | 2026-04-24 10:59 UTC | 53 min | resolved |
| [Issues with sign-ups on platform.claude.com](https://rewindex.com/company/anthropic/incidents/s0lttkq5mmt2.md) | major | 2026-04-24 17:03 UTC | 2026-04-24 17:32 UTC | 29 min | resolved |
| [Elevated error rates on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/q93x64nrhwnn.md) | minor | 2026-04-25 01:35 UTC | 2026-04-25 02:34 UTC | 59 min | resolved |
| [Claude Code v2.1.120 Crashes on Startup](https://rewindex.com/company/anthropic/incidents/zqsk02ryfmrd.md) | minor | 2026-04-25 01:45 UTC | 2026-04-25 02:35 UTC | 50 min | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/29ryc4sj27jk.md) | minor | 2026-04-25 07:48 UTC | 2026-04-25 08:37 UTC | 49 min | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/87m29x6sk78g.md) | minor | 2026-04-25 08:43 UTC | 2026-04-25 11:58 UTC | 3.3 h | resolved |
| [Investigated elevated errors and slower responses on claude.ai](https://rewindex.com/company/anthropic/incidents/c3km369dp85h.md) | none | 2026-04-25 18:42 UTC | 2026-04-25 19:02 UTC | 20 min | resolved |
| [Elevated billing related errors on Claude.ai](https://rewindex.com/company/anthropic/incidents/mct55f8gxb7k.md) | none | 2026-04-27 14:11 UTC | 2026-04-27 15:18 UTC | 1.1 h | resolved |
| [Claude Code Code Review was intermittently failing](https://rewindex.com/company/anthropic/incidents/7bk0ftl0mpny.md) | none | 2026-04-28 06:00 UTC | 2026-04-28 06:00 UTC | 0 min | resolved |
| [Elevated errors on Claude Haiku 4.5](https://rewindex.com/company/anthropic/incidents/c20m4lbfd6pm.md) | minor | 2026-04-28 12:24 UTC | 2026-04-28 12:45 UTC | 21 min | resolved |
| [Elevated errors on Claude Sonnet 4.5](https://rewindex.com/company/anthropic/incidents/x1y91zcb2rp2.md) | minor | 2026-04-28 13:29 UTC | 2026-04-28 13:50 UTC | 21 min | resolved |
| [Claude.ai unavailable and elevated errors on the API](https://rewindex.com/company/anthropic/incidents/9l93x2ht4s5w.md) | major | 2026-04-28 17:41 UTC | 2026-04-28 19:15 UTC | 1.6 h | resolved |
| [Elevated errors on Claude Opus 4.7](https://rewindex.com/company/anthropic/incidents/lryjwwy0q9pl.md) | minor | 2026-04-28 23:33 UTC | 2026-04-29 00:00 UTC | 27 min | resolved |
| [Elevated errors on Claude Haiku 4.5](https://rewindex.com/company/anthropic/incidents/3yxsctr39y3j.md) | minor | 2026-04-29 13:47 UTC | 2026-04-29 14:14 UTC | 27 min | resolved |
| [claude.ai and API unavailable](https://rewindex.com/company/anthropic/incidents/2gf1jpyty350.md) | critical | 2026-04-30 01:20 UTC | 2026-04-30 01:51 UTC | 31 min | resolved |
| [Elevated errors on Claude Haiku 4.5](https://rewindex.com/company/anthropic/incidents/dv9r688vqt8s.md) | minor | 2026-04-30 13:10 UTC | 2026-04-30 14:01 UTC | 51 min | resolved |

## Cite this

Anthropic posted 49 status incidents in April 2026 (16 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/anthropic/2026/04
- Citation: Anthropic, “Anthropic in April 2026” (2026-04-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/anthropic/2026/04 (CC BY 4.0).
- Markdown link: `[Anthropic: Anthropic in April 2026 (2026-04-01)](https://rewindex.com/company/anthropic/2026/04)`


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Canonical: https://rewindex.com/company/anthropic/2026/04 · Markdown: https://rewindex.com/company/anthropic/2026/04.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:55:30.436Z