Positron AI raises $875M at $5B valuation amid AI chip demand

AI inference chip startup Positron AI raised $875M at a $5B valuation to fund the Asimov chip, Titan system, and scaling Atlas on Oracle Cloud Infrastructure.

Compiled by Sergey KostenchukPublished 2026-09-24Updated 2026-09-25

2026-09-24 Business NVIDIA

💼 Positron AI valued at $5B: $875M round for inference chips

The Reno-based startup raised $375M in Series C and Series C-1 to reach $500M (NEA and Jim Clark). Its valuation grew 4x in 7 months.

🌍 The bet is on inference using mass-market LPDDR5X instead of scarce HBM and CoWoS, where memory—not FLOPS—is the bottleneck.

👤 If claims of over 90% LPDDR5X throughput are confirmed, the economics of “tokens per dollar” and “tokens per watt” change.

Source 1: https://www.prnewswire.com/news-releases/positron-ai-raises-875-million-at-a-5-billion-valuation-to-bring-its-next-generation-inference-silicon-to-market-302874601.html Source 2: https://www.positron.ai/press

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