About
Neolithic is a nonprofit startup in San Francisco building open-source tools and infrastructure to accelerate AI safety research. We're fiscally sponsored by BERI, a 501(c)(3), and funded by Coefficient Giving and Foresight Institute.
Team
Leo founded Neolithic in 2026 after researching scheming capabilities in frontier models, building automated interpretability tools, and doing AI safety field building.
Before pivoting to AI safety, he was a design engineer building autonomous aircraft and orbital rockets, then an ML researcher in computational neuroscience.
Neolithic is currently a team of one and collaborating with multiple other safety organizations. We're incredibly excited to be hiring the first two Members of Technical Staff: join the team.
Advisors
Values
Mission First
Reducing catastrophic risk from advanced AI is our goal. We judge every project through that lens.
Direct Feedback
Giving and receiving feedback gracefully, no matter how uncomfortable, is critical to our success.
Speed and Agency
Time is short and the work is crucial. So we take initiative, move fast, and build what the field needs to scale.

