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Former Y Combinator president Geoff Ralston launches new AI ‘safety’ fund

From TechCrunch

By Julie Bort

April 17, 2025

Former Y Combinator president Geoff Ralston launches new AI ‘safety’ fund

Former Y Combinator president Geoff Ralston launches new AI ‘safety’ fund

Geoff Ralston, well-known in the startup community for his years at Y Combinator, is back in the formal investing ring, he announced Thursday.

His new fund is called Safe Artificial Intelligence Fund, or SAIF, which is both an explanation of its thesis and a play on words.

Ralston is specifically looking for startups that “enhance AI safety, security, and responsible deployment,” as his fund’s website describes. He plans to write $100,000 checks as a SAFE, “pun intended,” he says, with a $10 million cap. A SAFE is, of course, the invest now/price later pre-seed investment tool pioneered by Y Combinator (it stands for simple agreement for future equity).

While most VCs these days are looking to invest in AI startups, Ralston’s take is a bit more focused on the idea of safe AI, even though he admits the concept is a bit broad.

“The vast majority of AI projects out in the world today are using the technology to solve problems or create efficiencies or create new capabilities. They are not necessarily intrinsically unsafe, but safety is not their primary concern,”  Ralston tells TechCrunch. “I intend to fund startups whose primary objective is safe AI — as I have (very broadly) defined it.”

That list includes startups focused on improving the safety of AI, like those that clarify an AI’s decision-making process or benchmark AI safety. It includes products that protect intellectual property, those that ensure an AI conforms to compliance requirements, fight disinformation, and detect AI-generated attacks. He also wants to invest in functional AI tools with built-in safety in mind, such as better AI forecasting tools and AI-enabled business negotiation tools that won’t reveal corporate secrets to outsiders.

This might sound like a list of AI startups that many VCs are pursuing, but there are areas Ralston says he won’t back. One example is fully autonomous weapons.

“There are certainly uses of AI which would (will) be unsafe: using the technology to create bioweapons, to manage conventional weapons without a human in the loop, etc.,” he explained.  

In fact, he’d like to fund “weapon safety systems” that could detect or prevent attacks from AI weapons.

This is an interesting contrarian viewpoint from many of today’s defense tech founders and VCs. As TechCrunch has previously reported, some of the people building AI weapons have increasingly been floating the idea that such weapons would be better operating without a human. 

Still, all things AI is a crowded field for VCs these days. That’s where Ralston hopes his YC connections could give him an advantage. Ralston departed YC in 2022, after three years as president (succeeded by Garry Tan) and over a decade as an adviser. 

Ralston plans to offer mentoring of the kind he did at the storied startup accelerator and has promised to coach them through how to apply to YC. And he’s offering to help them tap into his considerable investor network. 

Ralston declined to say how big this fund is, how many startups he intends to back, or who his LP backers are.

View original article on techcrunch.com

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