Cerebras pushes disaggregated inference: heterogeneous prefill pools feeding wafer-scale decode

ai · x · 2026-10-16

Cerebras CEO Andrew Feldman explained the benefits of disaggregated inference: the company uses heterogeneous prefill pools feeding into wafer-scale engines for decode, scaling token speed independently of batch size. The thread also highlights d-Matrix's layer-level split — 1x H100 + 8x Corsair XPUs disaggregating attention (memory-bound) from FFN (compute-bound) to hit 845 tok/s per user.

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