Ben Scharfstein

Ben Scharfstein builds at Applied Compute. Previously Head of Product, Enterprise Solutions at Scale AI, co-founder and CEO of Stelo Labs / Village Computing Company and Rume, and a product manager at Google. He studied applied mathematics-economics at Harvard University.

Career

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Based in: San Francisco
Elsewhere

Applied Compute

Nov 2025 — Present

Builder

Scale AI

Oct 2024 — Sep 2025

Head of Product, Enterprise Solutions

Stelo Labs, Inc

Mar 2022 — May 2024

Co-Founder / CEO, Stelo Labs / Village Computing Company

Rume

Sep 2019 — Jun 2021

Co-Founder / CEO

South Park Commons

Oct 2019 — Aug 2020

Member

Google

Sep 2018 — Aug 2019

Product Manager

Harvard University

Oct 2014 — May 2015

Research Assistant

The Harvard Crimson

Jan 2014 — Dec 2014

Technology Manager

Earnest

Jun 2014 — Aug 2014

Software Engineering Intern

Harvard University

Bachelors, Mathematics

Products & media

scharfste.in

Evaluation is all you need: think like a scientist when building AI

A guide to evaluating probabilistic software, defining repeatable quality measures, and checking the labels and distributions used in AI tests.

Writing

docs.superpipe.ai

Building, evaluating and optimizing Superpipe

Scharfstein and Aman Dhesi explain their structured-data LLM workflow: establish ground-truth labels, evaluate complete pipelines, and search across prompts and models to compare accuracy, latency and cost.

Writing

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Ben Scharfstein

Applied Compute

Scale AI

Stelo Labs, Inc

Rume

South Park Commons

Google

Harvard University

The Harvard Crimson

Earnest

Harvard University

Products & media

Evaluation is all you need: think like a scientist when building AI

Building, evaluating and optimizing Superpipe

Curated Lists

List Inclusions