Accelerating GPT-5.6 Sol Ultrafast with OpenAI

With Ultrafast, researchers and engineers can reserve their attention for going deep on select problems that matter most, while continuing to use Standard processing for parallelizing commodity tasks. Cerebras is excited to power the next wave of AI innovation, raising the ceiling for what individuals and organizations can accomplish with responsive AI.

Breakneck Speed is Enabled by Breakthrough Innovation

GPT-5.6 Sol on Ultrafast mode is powered by Cerebras’ revolutionary Wafer-Scale Engine architecture, purpose-built for frontier AI workloads. Fast frontier inference is a data movement problem: on GPUs, inference on large models is bottlenecked by memory bandwidth, as model weights must be repeatedly transferred between on-chip memory and off-chip storage to generate successive tokens within a model response.

Cerebras takes a contrarian approach to eliminating this inefficient data movement: we pack 44 GB of SRAM on each wafer-sized chip. Weights stay on-chip, and tokens flow uninterrupted through model layers pipelined across wafers. This technical approach scales smoothly with model size, paving the way for a continued speed advantage on future frontier models.

Ultrafast: Now in Limited Preview

GPT-5.6 Sol on Ultrafast mode is available in a limited preview today to a select group of customers. Access will expand as capacity grows. Sign up for updates.