Guide Startups

Fulcrum

Summer 2025 · Active

The agentic debugger for AI systems

Location: San Francisco, US

Founded: 2025

Team size: 2

About

We build red-teaming agents that help developers fix their RL environments and improve their agents. Our customers are tired of being bullshitted by their agents.

Founders

  • Kaivalya HariharanFounder

    MIT CS & Math ’24. MEng AI candidate under Jacob Andreas (LINGO) group. Best Paper—NeurIPS ML Safety ’22; follow-up at NeurIPS ’23 and benchmark paper accepted to NeurIPS ’24. Emergent Ventures Fellow ’25. Founder of MAIA (MIT AI Alignment). Research stints at Redwood Research and Truthful AI. USABO Nationals finalist (camper), two-time AIME qualifier.

  • Uzay GiritFounder

    working on better human AI collaboration - building oversight interfaces for AI agents. I did ML research on in context learning and scaling laws, studied math and CS at MIT, into writing and climbing. From Paris. Website: https://uzpg.me