Skip to main content
← Back to companies
Blank Bio logo

Blank Bio

2 open
San Francisco, CA, USAFounded 20253+ employeesSeed raisedSeedPrivate
Last round: pre seed · $135K · Sep 2025(1 rounds total)
RNA-based AI for better drugs and smarter clinical trials.
Backed by(3 investors)
Y CombinatorAlumni VenturesRebel Fund

RNA-based AI for better drugs and smarter clinical trials.

YC S25

About the Company

Blank Bio is a YC-backed TechBio startup building the next generation of RNA foundation models. Our mission is to decode RNA biology to accelerate the discovery and development of RNA-based therapeutics, biomarkers, and diagnostics. We believe RNA is the programmable layer of biology and that advances in AI will unlock its full potential for medicine.

We’re a technical team of PhDs and operators with experience at pioneering TechBio companies (Valence, Recursion, Deep Genomics) and top AI labs. We’re backed by investors like Nova Threshold, Leonis Capital, SignalFire, Define Ventures, and others.

Founders

Philip Fradkin
Philip Fradkin

Building AI for the most designable molecule in the world: RNA Published at top ML & Bio conferences including best paper at Foundation models for science @ Neurips. Built self-supervised learning applications for RNA, small molecules, and phenomics. Playing long term games in ML for Biology. One of the first employees at Deep Genomics. PhD from University of Toronto.

Jonny Hsu
Jonny Hsu

Working on foundation models for RNA therapeutics. I was an early employee at Valence Discovery, a biotech startup that spun out from Mila. I led product and strategy. Valence was acquired by Recursion (NASDAQ: RXRX) in May 2023. I stayed on afterwards to help build out the AI research engine of Recursion called Valence Labs. Biochemist by training | Waterloo graduate

Ian Shi
Ian Shi

Building foundational models for RNA therapeutics at Blank Bio. Just defended my PhD in CS at the University of Toronto. Published at ICML, NeurIPS, Nature Comms; used 4 GPUs to pre-train an mRNA foundation model that beat competitors using months of compute on thousands of H100s. Now scaling our models to unlock new possibilities in the RNA therapeutic space. Previously at Amazon building software, interned at Pinterest and Amazon as a research scientist in between.

Ready to start your space career at Blank Bio?

Shipping like we're funded. We're not. No affiliation.

Sequoia logo
Y Combinator logo
Founders Fund logo
a16z logo