HI

hillclimb

YC F25

San Francisco, US · Founded 2025 · 4 employees · 1 known investors

hillclimb.com ↗

Hillclimb develops training data for recursive self-improvement in AI models, focusing on aggregating human research data and automating reinforcement learning environment creation. The company sells the resulting data to frontier AI laboratories.

Founders & leadership· Y Combinator alumni (F25)

Jun Parkin𝕏Founder

Investors · 1

Y

Y CombinatorMountain View · $500K – $500K