Incident report · read from Anthropic's status page

Anthropic incident: Elevated latency on the Claude API for some users

Resolved after 1 h 40 m (10 Sep 2026, 21:43–23:24 UTC), impact minor, affecting Claude Cowork and Claude API (api.anthropic.com).

Timeline

1. 10 Sep 2026 at 21:43 UTC identified

   We are experiencing slower than normal response times on the Claude API for some customers whose traffic enters through the US Midwest. Users may experience elevated latency and some request timeouts.

2. 10 Sep 2026 at 23:24 UTC resolved

   The issue affecting Claude services has been mitigated.

Affected components

• Claude Cowork: degraded for 1 h 40 m
• Claude API (api.anthropic.com): degraded for 1 h 40 m

Source

Anthropic's own report of this incident, on Anthropic's status page. This page is a record of Anthropic's own report; where the two disagree, theirs is right.

Last checked 11 Sep 2026 at 01:26 UTC.

Must Have AI is a parody and is not affiliated with, endorsed by or connected to OpenAI, Anthropic or Google. Every outage shown here is read from the provider's own public status page.