René Sultan

Research Engineer

René Sultan is a Research Engineer at Ramp Labs, where he works on applied AI and agentic finance. He graduated from Columbia University with a BS in Computer Science before co-founding BOND through Y Combinator's Spring 2025 batch. He previously worked in ML at Spotify and as an AI Research Engineer at Distyl AI.

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Education

BS, Computer Science (Intelligent Systems) at Columbia University

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Expertise

At Ramp, René’s work spans LLM safety, agentic systems, and building the infrastructure that powers Ramp Router, Ramp's AI gateway for accessing and optimizing across LLM providers.

Articles by René Sultan

ARTICLE

What is an LLM router?

An LLM router sends each prompt to the cheapest model that can handle it well, cutting AI costs without sacrificing quality. Learn how routing saves you money.

ARTICLE

LLM gateways explained: How to cut AI costs without cutting AI

Learn what an LLM gateway is, how model routing works, and why it's a cost lever for finance teams—not just an engineering tool.