Hot Chips 2026: Cerebras lays out the future of wafer-scale AI — Nexus system architecture triples rack-scale performance, CS-6 wafer to incorporate stacked DRAM

At Hot Chips 2026, Cerebras revealed the next two generations of its wafer-scale accelerator roadmap. It also discussed the benefits of its new Nexus rack design for the CS-4 rack-scale accelerator and the performance of the three WS-3T wafer-scale engines contained within.