DeepSeek API slowdown on 16 October 2026

DeepSeek API from Amsterdam, Mumbai, San Francisco, Singapore, Tokyo, Montreal: slower than usual; 2026-10-16 15:30 UTC to 2026-10-16 18:00 UTC: peak first visible token 1.46 s vs a usual 0.79 s.

What our checks saw: Slower than usual
Cities affected: Amsterdam, Mumbai, San Francisco, Singapore, Tokyo, Montreal
When: 16 Oct, 15:30 UTC to 16 Oct, 18:00 UTC
How long: 2.5 hours
Slowest check: 1.46 s, usually 793 ms
DeepSeek'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 (756 ms)Slower than usualSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
12:30	722 ms	Normal
13:00	1.40 s	Slower than usual
13:30	877 ms	Normal
14:00	825 ms	Normal
14:30	848 ms	Normal
15:00	930 ms	Normal
15:30	1.44 s	Slower than usual
16:00	1.45 s	Slower than usual
16:30	868 ms	Normal
17:00	819 ms	Normal
17:30	927 ms	Normal
18:00	827 ms	Normal
18:30	907 ms	Normal
19:00	856 ms	Normal
19:30	917 ms	Normal
20:00	804 ms	Normal
20:30	810 ms	Normal
21:00	684 ms	Normal

San Francisco

Each check (UTC)Usual (762 ms)Slower than usualSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
12:30	939 ms	Normal
13:00	1.28 s	Slower than usual
13:30	840 ms	Normal
14:00	883 ms	Normal
14:30	985 ms	Normal
15:00	791 ms	Normal
15:30	1.24 s	Slower than usual
16:00	1.41 s	Slower than usual
16:30	880 ms	Normal
17:00	752 ms	Normal
17:30	842 ms	Normal
18:00	853 ms	Normal
18:30	826 ms	Normal
19:00	832 ms	Normal
19:30	603 ms	Normal
20:00	861 ms	Normal
20:30	668 ms	Normal
21:00	798 ms	Normal

Montreal

Each check (UTC)Usual (793 ms)Slower than usualSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
12:30	783 ms	Normal
13:00	1.36 s	Slower than usual
13:30	883 ms	Normal
14:00	994 ms	Normal
14:30	936 ms	Normal
15:00	1.03 s	Normal
15:30	1.38 s	Slower than usual
16:00	1.54 s	Slower than usual
16:30	935 ms	Normal
17:00	914 ms	Normal
17:30	890 ms	Normal
18:00	900 ms	Normal
18:30	912 ms	Normal
19:00	880 ms	Normal
19:30	876 ms	Normal
20:00	850 ms	Normal
20:30	714 ms	Normal
21:00	949 ms	Normal

Singapore

Each check (UTC)Usual (575 ms)Slower than usualSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
12:30	639 ms	Normal
13:00	1.16 s	Slower than usual
13:30	699 ms	Normal
14:00	777 ms	Normal
14:30	699 ms	Normal
15:00	800 ms	Normal
15:30	1.16 s	Slower than usual
16:00	1.35 s	Slower than usual
16:30	614 ms	Normal
17:00	616 ms	Normal
17:30	514 ms	Normal
18:00	523 ms	Normal
18:30	689 ms	Normal
19:00	708 ms	Normal
19:30	459 ms	Normal
20:00	714 ms	Normal
20:30	470 ms	Normal
21:00	641 ms	Normal

Tokyo

Each check (UTC)Usual (650 ms)Slower than usualSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
12:30	598 ms	Normal
13:00	1.13 s	Slower than usual
13:30	743 ms	Normal
14:00	727 ms	Normal
14:30	772 ms	Normal
15:00	805 ms	Normal
15:30	1.27 s	Slower than usual
16:00	1.23 s	Slower than usual
16:30	701 ms	Normal
17:00	779 ms	Normal
17:30	649 ms	Normal
18:00	700 ms	Normal
18:30	705 ms	Normal
19:00	739 ms	Normal
19:30	591 ms	Normal
20:00	762 ms	Normal
20:30	676 ms	Normal
21:00	760 ms	Normal

Mumbai

Each check (UTC)Usual (639 ms)Slower than usualSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
12:30	540 ms	Normal
13:00	1.25 s	Slower than usual
13:30	754 ms	Normal
14:00	652 ms	Normal
14:30	786 ms	Normal
15:00	857 ms	Normal
15:30	1.20 s	Slower than usual
16:00	1.23 s	Slower than usual
16:30	432 ms	Normal
17:00	665 ms	Normal
17:30	732 ms	Normal
18:00	740 ms	Normal
18:30	760 ms	Normal
19:00	769 ms	Normal
19:30	571 ms	Normal
20:00	729 ms	Normal
20:30	732 ms	Normal
21:00	786 ms	Normal

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