Paradigm is pushing further beyond crypto — and into nuclear. The crypto-focused venture firm led a $470 million Series C for Antares Nuclear, a startup building compact small modular reactors (SMRs) aimed at U.S. military customers. The financing, reported by TechCrunch, breaks down to $370 million of equity and $100 million of debt. Caffeinated Capital co-led the round, with participation from Industrious Ventures, Point72 Ventures, and Shine Capital.
Why it matters to crypto investors
Paradigm closed a $1.2 billion fourth fund just weeks earlier and has made clear it will keep “first in crypto” as its anchor while allocating capital to adjacent frontier technologies — AI, robotics, aerospace, manufacturing and the like. Antares now joins an expanding portfolio that already includes non-blockchain bets such as Zipline, SendCutSend, True Anomaly, and Nous Research. For a crypto audience, the move highlights how venture capital tied to digital assets is increasingly diversifying into underlying compute and power infrastructure that will shape the future of large-scale computing and AI.
What Antares is building
Antares focuses on compact reactors that produce between 100 kilowatts and 1 megawatt of electricity — what the company says is enough to power roughly 750 homes at the high end. Its demonstration reactor, Mark-0, reached criticality on June 4 at Idaho National Laboratory — a key milestone showing a sustained, controlled nuclear chain reaction.
Military-first go-to-market
Rather than chasing utilities, Antares is targeting government and defense customers. It is one of three finalists for the Pentagon’s Advanced Nuclear Power for Installations program, which will evaluate SMRs at Air Force bases in Colorado and Montana. Antares expects its first electricity-producing reactor to be online next year and hopes to begin deployments to U.S. military installations in 2028 if development proceeds on schedule.
Technology highlights
Antares uses TRISO fuel — uranium kernels encased in multiple carbon and ceramic layers designed to retain fission products at very high temperatures. TRISO is a common choice among advanced reactor developers and can pair with non-water cooling systems such as helium gas or molten salts, enabling designs that differ from conventional water-cooled reactors.
Broader market context
Investor interest in advanced nuclear has been accelerating as hyperscale data centers and broader electrification push demand for reliable, continuous power. Large AI models and data centers place particular pressure on baseload generation, driving VCs to companies developing reactors meant for industrial sites, government facilities, and computing infrastructure. Recent milestones in the sector include X-energy’s $1 billion IPO in April and >$100 million funding rounds raised since last December by Radiant Energy, Standard Nuclear, and Last Energy.
Headwinds remain
Commercial rollouts of advanced reactors face supply-chain constraints and manufacturing scale challenges. Proponents argue factory-built reactors will reduce costs over time, but those benefits can take years to realize. Lazard analysis cited by TechCrunch estimates first-generation SMR electricity could cost about $214 per megawatt-hour — higher than most newly built power plants, except the most expensive gas turbines.
Where this fits for Paradigm
The Antares deal underscores Paradigm’s dual strategy: keep crypto at the core while backing complementary infrastructure in AI and hardware. The firm also pointed to internal projects merging blockchain and AI — such as EVMbench, developed with OpenAI to test AI agents for smart contract security — and continued contributions to open-source blockchain tools like Foundry and Reth. Investing in Antares gives Paradigm exposure to an industry that could supply dependable power to the next wave of computing demand that both AI and blockchain applications will create.
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