AI Startups: Soaring Seed Valuations, Investors in a Frenzy

Valuation of AI Startups on the Rise

Pete Martin, founder of Realm, an AI-powered cybersecurity company, recalls raising a $5 million seed round with a post-money valuation of $25 million in 2024. At the time, this seemed significant, but today, valuations for AI startups have reached new heights. It is now common to see seed rounds of $10 million with valuations ranging from $40 to $45 million. This trend is particularly pronounced in the AI sector, where investors are reluctant to fund other types of businesses.

During the latest Y Combinator Demo Day in March, discussions centered around the high valuations of startups. Ashley Smith, general partner at Vermilion, noted that many startups had already signed six or seven-figure client contracts within just eight weeks of existence. She mentioned companies asking for $5 million with a post-money valuation of $40 million, surpassing the infamous "YC tax," which refers to the premium investors are willing to pay for a startup that has gone through Y Combinator.

Major Venture Capital Firms in Action

Large venture capital firms, armed with abundant cash, are investing earlier in startups, driving up prices and valuations. These investors hope to achieve significant gains if the startups succeed in exiting or going public. Smaller venture capital firms also have an insatiable appetite for AI companies. Ashley Smith, specializing in AI infrastructure, often finds herself excluded from funding rounds when larger firms step in. This dynamic contributes to a decrease in the number of seed deals, even as valuations continue to rise, as confirmed by data from Carta.

Shanea Leven, founder of the AI application platform for businesses, Empromptu, attributes this trend to companies like Cursor, which reached $100 million in revenue in just 12 months by 2025. Cursor was one of the first AI companies to demonstrate how quickly these startups can gain traction. Other companies like Lovable, Bolt, OpenEvidence, and ElevenLabs are following a similar trajectory, although these examples are exceptions. However, the pressure is palpable to reach valuations of $50 billion.

Traction and Valuation: A New Norm

Venture capital investors justify the rising seed valuations by the rapid traction of startups. Marlon Nichols, general partner at MaC Ventures, explains that early evidence of traction drives seed prices. When he launched his firm in 2019, his average entry check was $1 million. Today, it stands at $2.5 million, with a cap of around $5 million.

Nichols emphasizes that the best seed-stage companies no longer resemble traditional businesses at this stage. Thanks to AI tools, founders can reach minimum viable products and acquire early customers faster than ever, even among large companies actively seeking to integrate AI.

Nichols' last two seed investments were already generating over $2 million in revenue, with "paying pilots from large enterprises" and "a clear path to full commercial agreements." He invested between $3 and $4 million, agreeing to value the startups at $25 and $30 million post-money, respectively, which is considerable compared to a few years ago.

The backgrounds of founders also play a crucial role in the evaluation of startups. Nichols notes that founders with relevant experience and a track record of execution reduce much of the risk in the early stage. Investors are willing to pay high premiums for proven AI talent, favoring second-generation founders or those with the right pedigree from a renowned former employer, such as OpenAI.

Pre-Seed: A New Opportunity

In light of rising seed valuations, investors are turning to pre-seed. Jonathan Lehr, general partner at Work-Bench, invests from a $160 million fund primarily focused on seed rounds, although he stated that the firm has become "increasingly comfortable" entering pre-seed as companies evolve much more quickly.

It is becoming more common to see investors injecting capital into startups earlier, as increased exposure is simply the price to pay to "access companies with the potential to grow faster and become category leaders," Lehr described.

Amber Atherton, partner at the early-stage consumer fund Patron, stated that to secure a stake in these promising early-stage startups, the average check size for her firm's $100 million Fund II now ranges from $4 to $5 million, compared to $1 to $2 million for her $90 million Fund I.

AI has raised the bar much higher for founders to have a live product with users and revenue from the outset. Investors must act more quickly and subscribe to real traction much earlier, as the best founders are shipping products with users and revenue almost immediately.

Thus, seed VCs are no longer "backing ideas," but "backing early evidence of real consumer product demand," she described. Seed VCs are also acting more swiftly, "shifting from slow diligence to high-conviction decisions on distribution, retention, and founder fit."

But There’s a Downside

As the stakes have risen, investor expectations have also climbed. It is no longer sufficient, Atherton stated, for a company to simply build and ship a product. Anyone can do that these days. It’s not even a matter of traction, although that helps a lot. It’s about the future, the story that founders can tell about how they will execute better than anyone else and outpace all others in the market. This is what these seed VCs believe will propel these startups into sustainable businesses worth $50 billion or more, or at least towards some form of profitable exit.

Founders must grow their businesses into ventures that justify high valuations from the outset before needing more cash. Series A investors also expect larger, faster, and more numerous results.

Nichols and his firm are now backing more young companies than ever, with the new expectation that they will hit their targets within about 18 months. "This discipline is just as important as backing winners," he said.

Higher seed valuations mean less margin for error, Lehr stated, adding: "Less room for experimentation, less tolerance for pivots, and more scrutiny if progress does not match the capital raised."

Martin, the cybersecurity founder, successfully raised his Series A at the end of last year, claiming that the benchmark was easily met for his company. But he too had a warning for founders. "You can find yourself stuck in between," Martin said. "Too expensive for new investors, but without the traction to justify the next round."