Claude API disruption on 6 October 2026

Claude API from Amsterdam, Mumbai, San Francisco, Singapore, Tokyo, Montreal: degraded checks; 2026-10-06 05:00 UTC to 2026-10-06 09:30 UTC: peak first visible token 7.69 s vs a usual 1.17 s.

What our checks saw: Degraded
Cities affected: Amsterdam, Mumbai, San Francisco, Singapore, Tokyo, Montreal
When: 6 Oct, 05:00 UTC to 6 Oct, 09:30 UTC
How long: 4.5 hours
Slowest check: 7.69 s, usually 1.17 s
Anthropic's status page: Open it

Where our checks saw it

Each glowing city had slow or failing checks during the incident, shown at its worst. We test from 6 cities, so other places may have been hit too.

Our checks, city by city

Each point is one check every 30 minutes, from three hours before the incident to three hours after. Coloured points are the checks we counted as slower or failing. The shaded area shows how far above the usual time they were.

Amsterdam

Each check (UTC)Usual (1.22 s)Much slower, or failingIncident

Every check as a table

Time (UTC)	Check	Reading
02:00	1.83 s	Normal
02:30	1.08 s	Normal
03:00	1.27 s	Normal
03:30	1.27 s	Normal
04:00	1.17 s	Normal
04:30	1.39 s	Normal
05:00	13.90 s	Much slower, or failing
05:30	1.19 s	Normal
06:00	1.36 s	Normal
06:30	1.10 s	Normal
07:00	1.07 s	Normal
07:30	5.23 s	Much slower, or failing
08:00	1.30 s	Normal
08:30	1.23 s	Normal
09:00	1.33 s	Normal
09:30	1.54 s	Normal
10:00	1.49 s	Normal
10:30	1.35 s	Normal
11:00	1.49 s	Normal
11:30	1.73 s	Normal
12:00	1.44 s	Normal
12:30	1.21 s	Normal

San Francisco

Each check (UTC)Usual (1.09 s)Much slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
02:00	4.13 s	Much slower, or failing
02:30	1.03 s	Normal
03:00	1.05 s	Normal
03:30	1.22 s	Normal
04:00	1.09 s	Normal
04:30	1.28 s	Normal
05:00	13.68 s	Much slower, or failing
05:30	1.19 s	Normal
06:00	–	No check
06:30	989 ms	No check
07:00	1.03 s	Normal
07:30	4.77 s	Much slower, or failing
08:00	1.18 s	Normal
08:30	1.16 s	Normal
09:00	1.20 s	Normal
09:30	1.35 s	Normal
10:00	1.24 s	Normal
10:30	1.16 s	Normal
11:00	1.18 s	Normal
11:30	1.46 s	Normal
12:00	1.27 s	Normal
12:30	1.03 s	Normal

Montreal

Each check (UTC)Usual (1.09 s)Much slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
02:00	1.94 s	Slower than usual
02:30	974 ms	Normal
03:00	1.11 s	Normal
03:30	1.31 s	Normal
04:00	–	No check
04:30	1.55 s	No check
05:00	9.15 s	Much slower, or failing
05:30	1.24 s	Normal
06:00	1.33 s	Normal
06:30	953 ms	Normal
07:00	979 ms	Normal
07:30	10.64 s	Much slower, or failing
08:00	1.11 s	Normal
08:30	1.22 s	Normal
09:00	1.30 s	Normal
09:30	1.36 s	Normal
10:00	1.33 s	Normal
10:30	1.24 s	Normal
11:00	1.19 s	Normal
11:30	1.28 s	Normal
12:00	1.38 s	Normal
12:30	1.07 s	Normal

Singapore

Each check (UTC)Usual (1.25 s)Much slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
02:00	4.06 s	Much slower, or failing
02:30	1.15 s	Normal
03:00	1.28 s	Normal
03:30	1.38 s	Normal
04:00	1.31 s	Normal
04:30	2.60 s	Slower than usual
05:00	9.61 s	Much slower, or failing
05:30	1.40 s	Normal
06:00	1.38 s	Normal
06:30	1.18 s	Normal
07:00	1.18 s	Normal
07:30	5.38 s	Much slower, or failing
08:00	1.41 s	Normal
08:30	1.41 s	Normal
09:00	1.40 s	Normal
09:30	1.58 s	Normal
10:00	1.41 s	Normal
10:30	1.40 s	Normal
11:00	1.40 s	Normal
11:30	1.54 s	Normal
12:00	1.42 s	Normal
12:30	1.27 s	Normal

Tokyo

Each check (UTC)Usual (1.17 s)Much slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
02:00	3.04 s	Much slower, or failing
02:30	1.12 s	Normal
03:00	1.26 s	Normal
03:30	1.41 s	Normal
04:00	1.26 s	Normal
04:30	1.36 s	Normal
05:00	14.02 s	Much slower, or failing
05:30	1.28 s	Normal
06:00	1.39 s	Normal
06:30	1.13 s	Normal
07:00	1.10 s	Normal
07:30	13.79 s	Much slower, or failing
08:00	1.29 s	Normal
08:30	1.43 s	Normal
09:00	1.39 s	Normal
09:30	1.68 s	Normal
10:00	1.59 s	Normal
10:30	1.29 s	Normal
11:00	1.32 s	Normal
11:30	2.06 s	Slower than usual
12:00	1.50 s	Normal
12:30	1.18 s	Normal

Mumbai

Each check (UTC)Usual (1.28 s)Much slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
02:00	1.68 s	Normal
02:30	1.21 s	Normal
03:00	1.28 s	Normal
03:30	1.64 s	Normal
04:00	1.28 s	Normal
04:30	1.67 s	Normal
05:00	9.48 s	Much slower, or failing
05:30	1.37 s	Normal
06:00	1.89 s	Normal
06:30	1.22 s	Normal
07:00	1.23 s	Normal
07:30	13.90 s	Much slower, or failing
08:00	1.35 s	Normal
08:30	1.37 s	Normal
09:00	1.35 s	Normal
09:30	1.76 s	Normal
10:00	1.82 s	Normal
10:30	1.49 s	Normal
11:00	1.42 s	Normal
11:30	2.14 s	Slower than usual
12:00	1.72 s	Normal
12:30	1.30 s	Normal

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