Cerebras revealed its next-generation wafer-scale roadmap at Hot Chips 2026, showcasing the CS-4 Nexus rack-scale platform, high-speed CS-5 decode acceleration, and 3D DRAM stacking on CS-6.

Key Takeaways

  • ✓CS-4 evolves into the Nexus rack-scale system delivering unprecedented wafer-to-wafer interconnect bandwidth;
  • ✓CS-5 targets record-breaking decode speeds for ultra-fast frontier LLM interactive workflows;
  • ✓CS-6 plans wafer-scale 3D DRAM integration to overcome the memory bandwidth wall for multi-trillion parameters.