The next-gen Cerebras CS4 is staying on 5nm. Why? Because going to 3nm doesn't magically fix the fact that SRAM scaling …
SemiAnalysis Twitter · SemiAnalysis (@SemiAnalysis_) · 2026-05-27
SemiAnalysis reports that Cerebras will keep its next-gen CS4 chip on 5nm rather than moving to 3nm, because SRAM density scaling has stalled and a smaller process node would not increase on-chip memory capacity.
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Extraction
Topics: cerebrassram-scalingai-accelerator-designsemiconductor-process-nodes
Claims
- Cerebras CS4 will remain on 5nm rather than migrating to 3nm.
- SRAM scaling has completely flattened, eliminating the memory density advantage that smaller nodes historically provided.
- Moving to 3nm does not solve the fundamental on-chip memory capacity constraints relevant to Cerebras's wafer-scale architecture.
Key quotes
The next-gen Cerebras CS4 is staying on 5nm. Why? Because going to 3nm doesn't magically fix the fact that SRAM scaling has completely flattened.