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Matthew

Applied researcher at Prime Intellect.
Exploring how language models reason, act, and learn.

About

I’m an applied researcher at Prime Intellect, working on reinforcement learning and language model agents.

I build environments, design evaluations, and run experiments to understand how models reason, use tools, and learn from feedback.

Selected work

Prime Intellect

Reinforcement learning & environments

Build training environments for language model agents, with verifiers that check reasoning and tool use. Run post-training experiments, inspect rollouts, and refine reward signals to help models complete longer tasks and recover when a step goes wrong.

Hugging Face

Open models & evaluation

Worked on evaluation tools for open language models, from dataset preparation to reproducible benchmark runs. Compared fine-tuning approaches, investigated model failures, and shared examples that helped developers adapt models to their own tasks.

Experience

2025 – Now
Applied Researcher at Prime Intellect San Francisco, CA

Elsewhere

A few other places I keep things on the internet.

Education

2018 – 2020
Master’s in Computer ScienceMachine Learning · Munich, DE
2015 – 2018
Bachelor’s in Computer Science at LMUMunich, DE