# ReasonBlocks

[ReasonBlocks on Hacklab](https://hacklab.so/org/reasonblocks)

Startup · 2 people on Hacklab

## Links

- [Website](https://reasonblocks.com/)
- [Y Combinator](https://www.ycombinator.com/companies/reasonblocks)
- [LinkedIn](https://www.linkedin.com/company/reason-blocks/)

## About

<!-- hacklab:yc-profile -->

## YC company profile

Specialized models that make your AI agents cheaper and more reliable.

ReasonBlocks turns your agents’ production traces into specialized models, delivering 10× cheaper inference without sacrificing performance. We handle training, routing, and serving.

- **YC batch:** Spring 2026
- **Team size:** 2
- **Location:** San Francisco
- **Country:** US
- **Status:** Active
- **Industry:** B2B
- **Stage:** Early
- **YC partner:** Aaron Epstein

## Founders

### Sajeev Magesh — Founder/CEO

Formerly at Stanford CS. Published in Nature Sustainable Agriculture (ML × agriculture). UN Best Paper. USAMO qualifier. 
Now building specialized intelligence that makes AI agents cheaper and more reliable at ReasonBlocks.

[LinkedIn](https://www.linkedin.com/in/sajeev-magesh-765514209/)

[Source: Y Combinator](https://www.ycombinator.com/companies/reasonblocks) · Retrieved 2026-11-02. Company information is self-reported on YC.

## Current staff

- [Rohan Vij](https://hacklab.so/rohan-vij) — CTO (Present)
- [Sajeev Magesh](https://hacklab.so/sajeev-magesh) — Founder/CEO (Present)