Cerebras Unveils Wafer-Scale Roadmap at Hot Chips 2026: CS-4 Nexus, CS-5, and 3D DRAM 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.