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Founder

Justin Dangel

Founder and CEO at Subquadratic

LinkedIn

Justin Dangel is the founder and CEO of Subquadratic, a company developing sparse attention technology.

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Subquadratic / SubQ launch
SubstackpositiveMay 10, 2026

“Founded Subquadratic, announced $29M seed funding at $500M valuation for SubQ 1M-Preview, first LLM with fully subquadratic attention architecture.”