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Claude (Anthropic) outage on September 10, 2026: Elevated latency on the Claude API for some users

Claude reported an incident affecting Claude (Anthropic) for 1 hour 41 minutes on 10 September 2026, from 21:43 to 23:24 UTC.

claude.ai All times UTC

Resolved

Official incident reported by Claude

Started
21:43
10 Sep 2026 UTC
Resolved
23:24
10 Sep 2026 UTC
Duration
1h 41m
1 hour 41 minutes
Impact
Minor
as rated by Claude
Updates
2
posted by Claude

Timeline

All times UTC.

Official incident from Claude

Elevated latency on the Claude API for some users

Resolved Minor impact 10 Sep 2026 21:43 UTC View on Claude's status page
  1. Official
    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. Official
    Resolved

    The issue affecting Claude services has been mitigated.

"Official" rows are quoted from Claude's public status page, status.claude.com. Very long posts are shortened.

What our checkpoints saw

HostTracker's checkpoints, which test claude.ai from several locations, recorded no outage of 5 minutes or longer during this incident. A provider can report a problem that affects only some features, regions or accounts, which a check of the main address does not see. The live Claude (Anthropic) status shows what our checks see right now.

All Claude (Anthropic) incidents Live Claude (Anthropic) status Every service we track

Does your product depend on Claude (Anthropic)?

An outage like this one reaches your users through your product, and most teams hear about it from a customer rather than from a dashboard. HostTracker watches any endpoint you name - your own site, an API you call, a vendor you resell - from 300+ locations, confirms a failure from several of them before it says anything, and then tells you by email, SMS, voice call or your chat tool.

You get the same record you are reading here for your own services: every outage timestamped, with the checks that observed it.

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Independent measurement by HostTracker. Not affiliated with Claude (Anthropic). Official updates are quoted from Claude's public status page and remain Claude's own words.