Cerebras is the purest bet on decode as disaggregated inference becomes the next shift in AI model serving. Prefill runs on AMD Helios, Amazon Trainium or Nvidia GPUs, while decode needs extreme on-chip bandwidth, where Cerebras' Wafer-Scale Engine claims 1,000-2,000 times the effective bandwidth of GPU HBM. Splitting the work yields more tokens per watt, lower latency and better economics at scale. It is already shipping in Cerebras' pairings with AMD and Amazon. x.com
