Ultrafast Frontier Inference | Cerebras Hot Chips 2026

Introduces the CS-4 system built on the Nexus rack-scale platform, detailing its modular compute backpack architecture with improved power delivery (0.5mm from wafer), integrated water-conditioning for cooling, and centralized front-of-rack power. Previews CS-5 targeting 10,000 output tokens/sec/user for open-source models and 5,000 tokens/sec/user for frontier models, and CS-6 which will integrate wafer-scale SRAM with 3D-stacked DRAM. Highlights the architectural advantage of Cerebras's on-wafer fabric bandwidth (53.5 PB/s) compared to conventional multi-GPU systems, emphasizing reduced latency, power, cost, and failure points.