Major incident

Anthropic (Claude): Elevated errors for Claude Opus 5.5

Oct 6, 2026, 12:24 UTC

started

12:43 UTC

resolved

19 min

duration

Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork

Current status of Anthropic (Claude): Operational — live Anthropic (Claude) status

Timeline

Oct 6, 2026, 12:24 UTC
investigating
We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.
Oct 6, 2026, 12:37 UTC
identified
We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
Oct 6, 2026, 12:43 UTC
resolved
The issue affecting Claude Opus 5.5 has been resolved.

Updates as published by Anthropic (Claude) (original).

This was part of a wider event: 22 services reported incidents within the hour.

Circle 13:24 UTC · USDC on X Layer — Delayed mints and burns (technical difficulties)
Asaas 13:15 UTC · Indisponibilidade na consulta Serasa para PF
DTN 13:13 UTC · Aghost & Portal Service Outage
Cornerstone 13:13 UTC · Latency on Reporting 2.0 - UK SL2 swimlane
GOV.UK One Login 13:11 UTC · Important: GOV.UK One Login service restored
Kraken 13:09 UTC · Sonic (S) Funding Delays
Thomson Reuters Legal 13:08 UTC · Investigating issue affecting UAE (ZAE1) region
Mews 13:04 UTC · Some channel reservations with loyalty memberships are not being created
LiveIntent 13:04 UTC · Delays in custom reports
Bling 13:00 UTC · Atraso no recebimento do retorno bancário
Qualys 12:57 UTC · EU Platform 1: Slowness on VMDR Module page (IM-12900)
Harness 12:54 UTC · Prod2 Pipelines with verify step failing intermittently
Bling 12:52 UTC · Dificuldade no acesso da Home Banking
Berklee IT Services 12:51 UTC · Partial Outage: berklee.edu
Cursor 12:40 UTC · Elevated errors affecting Anthropic models