Cerebras SpeedHub

Evidence that the advertised speed is oversold. decode (wafer) is the number Cerebras markets (~1000 tok/s); roundtrip is what your application actually sees end-to-end. The reality ratio below is roundtrip ÷ advertised.
Fleet median decode (wafer)
–tok/s
the advertised / marketed number
Fleet median roundtrip
–tok/s
what your app actually gets
Reality ratio (roundtrip ÷ advertised)
–
green ≥80% · amber 40–80% · red <40%

Fleet

One row per worker. Location is editable inline (saved on change). auto-refresh every 15s
Status Location Region Server Last run decode
wafer		 roundtrip
app		 TTFT
ms		 net rtt
ms		 Promise vs reality Enabled Mode Schedule
UTC
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Runs

Click a run to expand its per-output-size speed curve.
Time (UTC) Mode Trig decode roundtrip TTFT net tcp net tls net rtt rpm tpm 429
pick a server to see its runs