Tenstorrent Raises $1.5 Billion Series E at $6.2 Billion Valuation

Tenstorrent has raised $1.5 billion in Series E funding at a $6.2 billion post-money valuation, money the company will spend on high-volume manufacturing of its AI computing systems and worldwide commercial expansion. Trace Capital and Innovation X co-led the round.

The buyer list runs deep. New and returning investors include Agostinelli Group, ARK Invest, Brett Barna, 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 money has a specific job: deploying Tenstorrent's Galaxy AI server platform at scale, with a focus on open-weight large language models and video generation workloads. Alongside that, the company will keep building the AI and CPU intellectual property it licenses to customers designing custom silicon.

What does Tenstorrent actually sell?

The company covers multiple levels of the AI computing stack. It sells individual accelerator cards and workstations, full racks, larger clusters, and licensable processor IP for chip designers who'd rather build their own silicon. Its open-source software stack lets developers run frontier models locally while letting enterprises and sovereign customers deploy AI inside their own infrastructure.

At the silicon level, Tenstorrent builds RISC-V-based AI processors and licenses two core technologies: the TT-Ascalon RISC-V CPU and the Tensix AI core. Customers already include Samsung and LG — a detail that matters for anyone tracking credible alternatives to closed AI computing ecosystems.

CEO Jim Keller carries one of the strongest processor résumés in the industry: Apple's A4 and A5 chips, AMD's Zen architecture, and Tesla's Full Self-Driving processor. He framed the round around architectural consistency. "We built one architecture and sell it at every size. 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," Keller said.

Why now?

The Series E lands as enterprises, semiconductor companies, sovereign infrastructure programs, and AI inference providers actively look for alternatives to closed AI computing ecosystems. They want ownership of the hardware and software underneath their models, not just rented capacity.

Tenstorrent's strategy is built for that demand. One common architecture spans every deployment scale, and customers can either buy complete systems or fold Tenstorrent technology into their own chips. The company operates from Santa Clara, Austin, Toronto, Belgrade, Tokyo, and Bangalore — a footprint that mixes US engineering with lower-cost development hubs.

The lead investors bring different angles. Trace Capital was founded in 2026 by Ben Mahdavi and concentrates on long-term bets around major technological shifts. "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," Mahdavi said.

Innovation X, the other co-lead, is a late-stage venture firm with more than $4.5 billion under management across multiple funds as of December 31, 2025.

Protagonist, doubling down as an existing backer, made the most technical case. "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. We are excited to double down in the Series E to back Jim and the team through this next phase of growth," said George Bousis, Co-Founder and Managing Partner of Protagonist.

What does this change for buyers?

For teams weighing AI infrastructure, a $6.2 billion valuation and fresh manufacturing capital mean Tenstorrent now has the balance sheet to deliver Galaxy systems in volume, not just prototypes. The licensing route also gives Samsung-and-LG-class designers a second path: build custom silicon on proven RISC-V cores rather than buy whole systems.

The bet investors are making is that open, ownable compute wins share from closed ecosystems. If video generation benchmarks keep beating industry standards, the Series E won't be the last check this space attracts.