David Cui is Co-Founder and CTO of Framewise Health, a Y Combinator-backed AI healthtech startup transforming patient education through personalized AI-generated videos.

David studied at Brown University, where he researched computer vision and completed an engineering internship at Freya, a YC-backed voice AI company.

David brings a deep passion for user-centric product design, inspired by his upbringing in his father's restaurant where genuine care for customers was the core product.

David co-founded Framewise Health alongside Tane Kim after meeting at Brown University, with the company accepted into Y Combinator's Spring 2026 batch and raising $500K in seed funding.

Framewise Health addresses a $500B+ annual problem of preventable medication-related harm by delivering HIPAA-compliant, clinician-reviewed personalized videos to patients in under 5 minutes, targeting hospitals that pay an average of $1M per year in Medicare readmission penalties.