Rohan Vij is Co-Founder of ReasonBlocks (YC P26), an AI infrastructure company building a smarter and cheaper runtime layer for AI agents, based in San Francisco, CA.

Rohan studied Information Systems and Artificial Intelligence at Carnegie Mellon University, conducted molecular dynamics and AI research, and worked on AI for distributed energy at ENGIE, as well as IoT research at UC Davis.

Rohan was recognized as a Tri-Valley 2040 Visionary Industry Award recipient and has been building alongside his co-founder Sajeev Magesh for over 11 years, since childhood.

At ReasonBlocks, Rohan is focused on solving one of the core challenges in production AI: agents that repeatedly fail in the same ways, burning tokens and compute without ever learning from their mistakes.

ReasonBlocks, backed by Y Combinator in the P26 batch, delivers a runtime that catches agent failures mid-run, compresses redundant reasoning, and builds a private reasoning library that compounds across every deployment, making agents progressively cheaper and more reliable.