# Tenstorrent closes $1.5 billion Series E at $6.2 billion valuation to scale open Galaxy AI servers

Led by Jim Keller, the RISC-V chip designer doubles its valuation to commercialize open-architecture hardware as an alternative to proprietary GPUs.

- Canonical: https://reviewblip.com/news/tenstorrent-closes-1-5-billion-series-e-at-6-2-billion-valuation-to-scale-open-galaxy-ai-servers/
- Published: 2026-10-21T18:01:58.845Z
- Updated: 2026-10-21T18:01:58.845Z
- Author: ReviewBlip
- Category: Computing & Open Silicon
- Type: News

![Isometric 3D rendering of enterprise Galaxy server racks beneath a floating multi-layered AI processor chip connected by optical routing beams](https://reviewblip.com/editorial-images/28cb1e42101e2f5c689882d07d8c7c60f1c9369d78a593f1c0aa5d8f13763a3a)

Image credit: Tenstorrent · Server architecture visualization

AI hardware startup Tenstorrent announced on Wednesday that it has closed a $1.5 billion Series E financing round, establishing a post-money valuation of $6.2 billion. The round was co-led by Trace Capital and Innovation X, with participation from institutional investors including ARK Invest, Cadence Ventures, Fidelity, Morgan Stanley, and Sandisk. The valuation more than doubles the $2.6 billion valuation the company secured in late 2024.\[4\]

CEO Jim Keller, the legendary microprocessor designer behind Apple's A4/A5, AMD's Zen, and Tesla's Full Self-Driving silicon, revealed that Tenstorrent rebuffed acquisition bids valued up to $5 billion from established chipmakers earlier this year. Keller cited successful customer validation in May—demonstrating that Tenstorrent's modular Galaxy servers could execute complex DeepSeek open-weight models with superior energy and cost economics—as the catalyst to remain an independent challenger to Nvidia's datacenter hegemony.\[4\]

Tenstorrent will utilize the fresh capital to ramp commercial volume manufacturing of its Galaxy servers and scale its open-source software compiler stack. Built around high-density RISC-V CPU cores paired with modular tensix AI accelerators and high-bandwidth interconnects, Galaxy servers allow enterprise datacenters and sovereign AI projects to train and deploy frontier models on premises without paying proprietary GPU software premiums or enduring multi-quarter allocation backlogs.\[4\]

Our take: Tenstorrent's massive capital raise demonstrates that enterprise buyers and institutional investors are hungry for a viable, open-architecture alternative to Nvidia's proprietary CUDA ecosystem. By leveraging modular chiplets, open RISC-V compute cores, and an unencumbered open-source compiler, Tenstorrent offers cost-conscious cloud builders genuine hardware sovereignty. While dislodging Nvidia from hyperscale clusters remains a monumental challenge, Jim Keller's proven track record of architectural execution makes Tenstorrent the most formidable open silicon challenger in the industry.

## Sources
- [\[4\] Tenstorrent announces $1.5 billion Series E to scale Galaxy servers — Tenstorrent Newsroom / Bloomberg / WebProNews](https://www.webpronews.com/tenstorrent-raises-1-5-billion-at-6-2-billion-valuation-to-scale-galaxy-servers/)