The new valuation and investors

Positron announced that it had raised $875 million at a $5 billion valuation. In February, the startup raised $230 million at a $1.06 billion valuation, meaning the figure has more than quadrupled in seven months. [1 · Reuters] [2 · The Wall Street Journal]

According to The Wall Street Journal, the round was co-led by NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital and Netscape cofounder Jim Clark. [2 · The Wall Street Journal]

Expert commentary

Positron is developing Asimov, an inference accelerator that will be part of the Titan server. The company describes its architecture as primarily memory-focused and claims up to 2.3 TB of memory per accelerator; approximately 50 Atlas racks were previously delivered to Oracle[1]. [2 · The Wall Street Journal]

the rapid rise in valuation reflects demand for alternatives to NVIDIA at the inference stage. However, the investment valuation is running ahead of the main product’s readiness, making completion of Asimov, volume shipments and verified customer economics the key milestones. [1 · Reuters] [2 · The Wall Street Journal]

Sources

  1. Reuters — Positron’s funding round and valuation increase — September 10, 2026
  2. The Wall Street Journal — investors and the Asimov system — September 10, 2026