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Isaiah FreemanIF
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Isaiah Freeman

@isaiahfreeman

Machine learning researcher at Freethought Labs studying how truth representations transfer across 24 model pairs.

United States
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At Freethought Labs, I direct research in mechanistic interpretability and representation engineering. My first-author paper, “Shared Truth,” was accepted to the NeurIPS 2026 Main Track and tests whether truth representations transfer across 24 model pairs.

I found that closed-form Procrustes alignment matched trained autoencoder adapters on 19 of 21 pairs. I also investigated how injection strength affects transfer and tested the results against native-ceiling, random-weight, and shuffled-adapter baselines.

At Google, I fine-tuned LLM raters for deepfake and text-to-video detection during my YouTube Trust & Safety internship. At Google Maps Platform, I designed and shipped the experimental Air Quality widget for the Google Maps JavaScript API.

My M.S. thesis examined objective sufficiency modeling, including a triadic LLM data-generation pipeline and BERT-family classifiers. I’m pursuing a PhD in computer science and continue to explore how model representations can support interpretable decisions.

Experience

Work history, roles, and key accomplishments

FL
Current

Founder and Principal Researcher

Freethought Labs

Jan 2026 - Present (9 months)

Directs an independent research program in mechanistic interpretability and representation engineering, covering experiment design, implementation, evaluation, and publication. Leads research on probe-based pre-verbal tool selection for LLM agents and maintains open-source research tooling for RepProbe.

Education

Degrees, certifications, and relevant coursework

Virginia State University logoVU

Virginia State University

Master of Science, Computer Science

Grade: 3.87

Graduated with a Master of Science in Computer Science in August 2026 with a cumulative GPA of 3.87. Thesis focused on objective resonance and feedback reflection.

Virginia State University logoVU

Virginia State University

Bachelor of Science, Computer Science

Graduated with a Bachelor of Science in Computer Science in May 2025, magna cum laude.

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