# Cerebras unveils CS-4 system built from three WSE-3 Turbo wafers, claiming up to 30x GPU speed

Canonical page: https://technooptimist.io/stories/cerebras-unveils-cs-4-system-built-from-three-wse-3-turbo-wafers-de75f07f
Date: 18 Aug 2026
About: [Cerebras](https://technooptimist.io/companies/cerebras.md) · [WSE-3 / CS-3](https://technooptimist.io/computing/wse-3.md)
Original source: https://www.ai-infra-summit.com/press-releases/cerebras-unveils-cs-4-up-to-30-times-faster-than-gpu-based-solutions

Cerebras announced the CS-4, a rack-scale system built from three of its newly released WSE-3 Turbo wafer-scale chips. The company says it runs AI inference up to 30 times faster than GPU solutions, a comparison it ran itself, and that first CS-4 shipments begin this quarter.

## Key facts

- Each CS-4 system is built from three WSE-3 Turbo wafer-scale chips.
- The 30x figure compares tokens per second per user on GPT-OSS-120B with identical prompts; the release gives 4,400+ tokens per second per user for the CS-4.
- The release says the CS-4 is up to twice as fast as the CS-3 and up to 10x better per watt; no independent benchmark is cited.
- First shipments are said to begin this quarter; the release gives no unit count, pricing or customers.

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