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DeepSeek API slowdown on 29 September 2026

DeepSeek API from Amsterdam, San Francisco, Singapore, Tokyo: slower than usual; 2026-09-29 00:00 UTC to 2026-09-29 02:00 UTC: peak first visible token 1.06 s vs a usual 0.68 s.

What our checks saw
Slower than usual
Cities affected
Amsterdam, San Francisco, Singapore, Tokyo
When
to
How long
2 hours
Slowest check
1.06 s, usually 681 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. Not affected: Montreal, Mumbai.

Amsterdam

Incident0 ms750 ms1.50 s21:0000:0003:00
Each check (UTC)Usual (654 ms)Slower than usualIncident
Every check as a table
Time (UTC)CheckReading
21:00512 msNormal
21:30909 msNormal
22:00605 msNormal
22:30376 msNormal
23:00378 msNormal
23:30658 msNormal
00:001.30 sSlower than usual
00:30541 msNormal
01:00780 msNormal
01:30624 msNormal
02:00895 msNormal
02:30662 msNormal
03:00662 msNormal
03:30779 msNormal
04:00488 msNormal
04:30708 msNormal
05:00439 msNormal

San Francisco

Incident0 ms750 ms1.50 s21:0000:0003:00
Each check (UTC)Usual (682 ms)Slower than usualIncident
Every check as a table
Time (UTC)CheckReading
21:00724 msNormal
21:30908 msNormal
22:00627 msNormal
22:30377 msNormal
23:00400 msNormal
23:30826 msNormal
00:001.30 sSlower than usual
00:30426 msNormal
01:00766 msNormal
01:30865 msNormal
02:00941 msNormal
02:30645 msNormal
03:00614 msNormal
03:30852 msNormal
04:00708 msNormal
04:30618 msNormal
05:00758 msNormal

Singapore

Incident0 ms750 ms1.50 s21:0000:0003:00
Each check (UTC)Usual (482 ms)Slower than usualSlow check outside the incidentIncident
Every check as a table
Time (UTC)CheckReading
21:00451 msNormal
21:30802 msSlower than usual
22:00279 msNormal
22:30190 msNormal
23:00352 msNormal
23:30429 msNormal
00:001.06 sSlower than usual
00:30445 msNormal
01:00456 msNormal
01:30436 msNormal
02:00812 msSlower than usual
02:30539 msNormal
03:00407 msNormal
03:30677 msNormal
04:00421 msNormal
04:30462 msNormal
05:00645 msNormal

Tokyo

Incident0 ms750 ms1.50 s21:0000:0003:00
Each check (UTC)Usual (587 ms)Slower than usualIncident
Every check as a table
Time (UTC)CheckReading
21:00475 msNormal
21:30778 msNormal
22:00484 msNormal
22:30389 msNormal
23:00303 msNormal
23:30626 msNormal
00:001.22 sSlower than usual
00:30499 msNormal
01:00502 msNormal
01:30559 msNormal
02:00773 msNormal
02:30657 msNormal
03:00478 msNormal
03:30527 msNormal
04:00537 msNormal
04:30488 msNormal
05:00488 msNormal

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