Tenstorrent, the AI chip company led by legendary silicon architect Jim Keller, has closed a $1.5 billion Series E funding round at a $6.2 billion post-money valuation, the company announced Monday. The round, also reported by Reuters and Bloomberg, more than doubles the company's valuation as investors pile into alternatives to Nvidia's dominant AI hardware ecosystem.
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The round was led by Trace Capital and Innovation X, with participation from a long list of new and existing investors including Agostinelli Group, ARK Invest, Cadence Ventures, Eclipse, Fidelity Management & Research Company, Maverick Silicon, Morgan Stanley, Protagonist, Sandisk, T. Rowe Price, Tether Investments, Troluce Capital, Virtu Financial and XTX Markets.
The investor roster is notable for its breadth. Alongside conventional venture and growth funds, the round includes stablecoin giant Tether, market makers Virtu Financial and XTX Markets, and flash storage maker Sandisk — a signal that capital from across the tech economy is looking for exposure to AI compute that sits outside the Nvidia orbit.
What the Money Buys
Per the company's announcement, the capital will fund volume manufacturing of Galaxy servers and global commercial expansion, as chip designers, sovereign players and inference platforms move to own their AI compute. Tenstorrent says it will deploy Galaxy servers at scale to serve open-weight models across large language models and video generation, while continuing to advance the AI and CPU intellectual property it licenses to customers designing their own silicon.
Tenstorrent's pitch is vertical simplicity: the company sells AI compute at every level of the stack, from a single card or workstation up to racks, superclusters and custom IP licensing. Its software stack is open source, which the company says lets developers run frontier models locally and lets enterprises deploy on-premises with competitive latency and throughput.
"We built one architecture and sell it at every size," Keller said in the announcement. "The future of compute is open, scalable, and owned by the people building on it. Our investors believe in that model too, and we appreciate their support."
Investors made the case in similar terms. "Jim and his team bring decades of hands-on silicon, software, and IP experience, and we're excited to partner with Tenstorrent as Galaxy continues to scale," said Ben Mahdavi, founder of lead investor Trace Capital. George Bousis, co-founder and managing partner at Protagonist, pointed to product traction: "Few companies design the chip and the software that runs on it. Tenstorrent does both, and its video generation results beat industry benchmarks ahead of our expectations."
About the Lead Investors
The lead investors bring complementary profiles. Trace Capital was founded in 2026 by Ben Mahdavi, who previously co-founded Quiet Capital and led its access strategy; the firm describes a long-term, concentrated approach to businesses at the forefront of technological change. Innovation X, founded in 2016 by Roger Monteforte, is a late-stage venture firm with more than $4.5 billion under management across its funds, as reported on Form ADV at the end of 2025, investing across defense technology, fintech, artificial intelligence, infrastructure and the space economy.
Their participation alongside Fidelity, T. Rowe Price and Morgan Stanley gives Tenstorrent the kind of institutional investor base typically reserved for pre-IPO companies, and fuel for the volume manufacturing push that has long been the hardest part of challenging incumbent chipmakers.
The Keller Factor
Tenstorrent remains one of the most closely watched challenges to Nvidia's AI hardware dominance, and much of that attention traces to its CEO. Keller architected Apple's A4 and A5 chips, led the AMD Zen project that revived the company's CPU fortunes, and worked on Tesla's Full Self-Driving chip. At Tenstorrent he has pushed a RISC-V-first strategy, building AI processors and systems on the open instruction set architecture.
The company licenses its TT-Ascalon RISC-V CPU and Tensix AI cores to chip designers including Samsung and LG, giving it revenue streams beyond hardware sales. Its backers include Bezos Expeditions, Samsung, LG Electronics and Hyundai Motor Group, and it operates from Santa Clara, Austin, Toronto, Belgrade, Tokyo and Bangalore.
Why It Matters
The Series E lands at a moment when demand for AI inference compute is straining supply and customers are actively seeking alternatives to a single dominant vendor. Sovereign AI programs — national efforts to build domestic compute capacity — have become a recurring theme in Tenstorrent's commercial narrative, and the company framed this raise explicitly around buyers who want to own their stack.
The challenge ahead is execution at volume. Turning a $1.5 billion raise into shipped racks against Nvidia's manufacturing scale and CUDA software gravity is the same problem that has stalled many Nvidia challengers. But with a doubled valuation, deep-pocketed investors, and an open-source software stack aimed at the fastest-growing slice of the market — open-weight models — Tenstorrent has bought itself the runway to try.
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