aleph-alpha — AI API latency & reliability by region
As of September 06, 2026, the aleph-alpha AI API responds in 99 ms p50 (edge, time-to-first-byte) from Europe (Germany) — its fastest measured region — with 100% uptime. Slowest is Asia (Tokyo) at 541 ms p50.
Is aleph-alpha down right now?
Reachable from all 4 regions
Last successful probe Sep 6, 17:15 UTC · every 5 minutes from 4 region(s)
1 isolated failure(s) in the last 72 hours, the most recent (host probes) visible from only one region (Asia (Tokyo)). A single-region failure cannot be separated from a problem on that network path, so it is not called an outage. Measured from outside aleph-alpha’s own network, independently of its status page; full log: measured AI API incidents.
Real requests: not measured for aleph-alpha — only the API host is probed here, so errors limited to specific models are invisible to these probes. That is exactly what a status page tends to report, hence the line below.
aleph-alpha publishes no machine-readable status page, so there is nothing to cross-check against.
Edge latency, 24 h
99 ms
p50 from Europe (Germany), the fastest region
Uptime, 24 h
99.9%
1,151 probes across 4 region(s)
Failed probes, 72 h
1
of 3,454 · Asia (Tokyo)
Reported by aleph-alpha, 72 h
—
no machine-readable status page
Was aleph-alpha down in the last 3 days?
No. 1 isolated single-region probe failure(s) were recorded, none of which meets the bar for an outage (two or more regions at once).
Asia (Tokyo) only — not an outage · under one 5-minute probe cycle · 1 failed probe(s) · timeout
What aleph-alpha’s own status page reported
aleph-alpha publishes no machine-readable status page, so there is nothing to set against the measurements above.
Is aleph-alpha getting faster or slower?
Right now aleph-alpha is slower than usual from Europe (Germany): 193 ms against a three-day typical of 100 ms.
hourly p50 latencyall probes succeededsome probes failedhalf or more failedno data
One panel per region: the line is the hourly p50 edge latency (shared scale, ms), the strip beneath it is the outcome of that hour’s host probes. Hover any hour for the numbers. Flat is good; a rising line means the endpoint is slowing down from that origin, a gap means no probe succeeded in that hour.
How fast is the aleph-alpha API from each region?
Region
p50 TTFB
p95
Uptime
Asia (Tokyo)
541 ms
590 ms
99.7%
Europe (Germany)
99 ms
201 ms
100%
South America (São Paulo)
448 ms
504 ms
100%
US (Central)
302 ms
351 ms
100%
Measured from Europe (Germany), aleph-alpha responds in 99 ms; from Asia (Tokyo) the same API takes 541 ms — 5.5× longer for an identical request. That difference is the network path, not the model, and it applies to every call you make.
What is actually being measured here?
A probe in each region opens a real connection to aleph-alpha’s own API host every five
minutes and times DNS resolution, the TCP handshake, the TLS handshake and the first byte of the
response. Nothing is routed through a gateway or aggregator, so these figures describe
aleph-alpha’s infrastructure rather than a reseller’s. Uptime counts a probe as failed only when the
service genuinely fails — a 401 from an unauthenticated probe means the endpoint answered
correctly and is counted as up.
What this page does not tell you
These are edge latency numbers: the time before the model begins generating. They
say nothing about answer quality, throughput, price, or how long a full completion takes — those
depend on the model you call. Edge latency matters because it is unavoidable: it is paid on every
request, before a single token exists, and no prompt engineering removes it. Where an API key is
available, inference time-to-first-token is measured separately and shown on the region pages with the
model named next to the figure. Likewise, an unauthenticated probe cannot see errors that hit only some
models or some accounts — the kind a status page usually reports — which is why aleph-alpha’s
own reports are shown next to the measurements rather than folded into them.