ReasonBlocks
The runtime layer that makes AI agents cheaper and more reliable
Y CombinatorSpring 2026ActiveB2BSaaSB2BAI
What they do
Problem
The runtime layer that makes AI agents cheaper and more reliable
Founders
Sajeev Magesh
CEO & Co-Founder
Formerly at Stanford CS. Published in Nature Sustainable Agriculture (ML × agriculture). UN Best Paper. USAMO qualifier. 11 years building with co-founder Rohan. Currently making AI agents smarter and more reliable @ ReasonBlocks
Rohan Vij
Founder
Formerly at CMU, studying Information Systems & Artificial Intelligence. Molecular dynamics + AI research. AI for distributed energy at ENGIE. IoT research at UC Davis. 11 years building with co-founder Sajeev; we're making LLMs cheaper and more reliable.
Company timeline
- YC batchSpring 2026
- StatusActive
- Team size2 people
- LocationSan Francisco, CA, USA
