
Johannes HagemannFounder
Prime Intellect
Co-founder & CTO
via Prime Intellect
Researcher · Engineer
Research Lead at Prime Intellect
Brown builds open infrastructure for training reasoning agents. At Prime Intellect he created Verifiers, a library for defining environments and rewards, and helped develop INTELLECT-3, which demonstrated large-scale reinforcement learning with an openly released model, recipe and training stack.
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Prime IntellectWork and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Last editorial review: August 9, 2026