Positron, which is designing an AI processor called Asimov with a "memory-first architecture" and up to 2.3TB of memory, raised $875M at a $5B valuation (Robbie Whelan/Wall Street Journal)

Positron announced a $875 million funding round that values the startup at $5 billion as it develops the Asimov AI processor, which uses a “memory-first architecture” and can support up to 2.3 TB of on-chip memory. The capital will accelerate hardware design and production to meet growing demand for high-capacity AI compute.