Cerebras CS-4 combines three WSE-3 Turbo wafer-scale engines, 750 PFLOPS, and 129.6 PB/s, with third-quarter shipments planned.

Cerebras announced the CS-4 as a new AI accelerator system built with three WSE-3 Turbo wafer-scale engines. The company specified aggregate AI compute performance of 750 petaflops, or PFLOPS, and memory bandwidth of 129.6 petabytes per second, or PB/s.

A wafer-scale engine is a large processor implemented across substantially more silicon area than a conventional individually packaged chip. The report identifies the WSE-3 Turbo as the processing engine inside CS-4 but does not provide power consumption, memory capacity, system price, manufacturing yield, or rack-level deployment details.

Cerebras expects CS-4 shipments to begin in the third quarter of 2026. That is a planned shipment schedule; the supplied report does not state that commercial-volume shipments have already begun or identify customers receiving the first systems.