Companies › Subquadratic
Subquadratic logo

Subquadratic

San Francisco, US · subq.ai

Founded by Justin Dangel and Alexander Whedon, Subquadratic is an AI infrastructure company developing a new generation of large language models designed to overcome the scaling limitations of traditional transformer architectures. Its flagship model, SubQ, leverages a proprietary sparse-attention architecture that can handle context windows of up to 12 million tokens. In addition to its API platform, Subquadratic is also developing SubQ Code, a coding agent built for repository-scale AI development tasks. Headquartered in Miami, Florida, Subquadratic's mission is to develop AI that is powerfu

Funding

1
Every round, secondary, debt facility or acquisition involving Subquadratic that Lounge tracks, newest first. Latest: Seed on May 5, 2026.

Timeline · 1

May 5, 2026
Round
Seed · $29M at $500M · Ullas Naik, Streamlined
Paid members see every AI company on Lounge with revenue, funding, valuation and investors, searchable and sortable, plus CSV exports. Plans start at $19/mo.
See plans →Log in