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Hamel Husain founded Parlance Labs, where he helps teams evaluate and improve AI products. He co-teaches AI evaluations with Shreya Shankar and previously led CodeSearchNet at GitHub.

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Hamel Husain founded Parlance Labs, where he helps teams evaluate and improve AI products. He co-teaches AI evaluations with Shreya Shankar and previously led CodeSearchNet at GitHub.

Career

Hamel Husain studied at Georgia Institute of Technology (Master's degree in Computer Science) and University of Michigan (J.D.).

Founder and Independent Consultant at Parlance Labs until Present
Staff Machine Learning Engineer at GitHub until 2022
Vice President, Applied Analytics at AlixPartners from 2011 to 2015

Investing Announcements

Cosigns Received

Harrison ChaseCo-founder and CEO at LangChain
First Cosign
We've even made many improvements to LangSmith because of his work.
Source
George SiemensProfessor and Director, Centre for Change and Complexity in Learning at Adelaide University
Second Cosign
He helped us rethink our entire approach to LLM development and testing
Source
hamel.dev

“It’s Hard to Eval” Is a Product Smell

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youtube.com

AI evaluations with a real product example

Husain demonstrates how to inspect AI traces, organize errors, and use evaluations to improve a product with spreadsheets and concrete examples.

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github.com

A code review loop for Claude Code and Codex

Husain’s plugin coordinates a second review of Claude Code changes, with separate checks for the diff, project structure, framework, and interface.

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hamel.dev

On commercializing nbdev

Husain reflects on his nbdev work with Jeremy Howard and Wasim Lorgat, the friction of developer-tool adoption, and his decision to focus on consulting.

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Hamel's Collections

Hamel's Lists

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Cosigns Given