Seed-stage financing has entered unfamiliar territory as nine-figure rounds, once reserved for late-stage moonshots, are now appearing at company formation. So far in early 2025, Crunchbase data shows 27 seed deals globally exceeding $100 million—a scale that would have been anomalous even two years ago. The gravitational pull behind these outsized commitments is the rise of physical AI, where robotics, brain–computer interfaces, energy‑efficient chips, and advanced materials demand significant upfront capital well before commercial traction is visible.
The marquee raises tell the story. Paris-based Advanced Machine Intelligence set a new watermark with a $1.03 billion seed round. Unconventional AI secured $475 million to pursue next‑generation energy‑efficient chips. Merge Labs attracted $252 million for its brain–computer interface platform, backed by Sam Altman. These are formation‑stage companies capitalized like Series C ventures, and investors are underwriting engineering risk on timelines closer to deep‑tech than classic software.
Broader funding patterns reinforce the shift. Seed rounds above $10 million have expanded from 2 percent of the market in 2018 to roughly 9 percent today, while sub‑$5 million seeds continue to lose share. The traditional model—lean teams building early validation on minimal capital—is being displaced by a belief that certain AI categories require immediate scale, high‑density talent, and aggressive compute access to compete.
For investors, this abundance of upfront capital cuts both ways. Large seeds provide founders with unprecedented capacity to iterate, recruit, and build defensible infrastructure before facing commercial pressure. But they also lock in valuations that have not been tested against real market cycles or revenue milestones. The result is a new seed landscape defined by both expanded optionality and amplified exposure—raising the unresolved question of whether this is the next era of capital‑efficient acceleration or the early stages of a valuation time bomb.
