Cerebras has developed a wafer-scale chip with 970,000 fault-tolerant cores, achieving a high yield rate despite its large size. The company attributes this success to its small core design and sophisticated routing architecture, which allows the system to dynamically reconfigure connections between cores and route around defects. This approach enables the chip to maintain its computational capabilities even when defects are present. The result is a commercially viable wafer-scale computing solution with high silicon utilization.