October 21, 2026 — Flapping Airplanes closed 6B valuation (4× January 2026 seed mark). Founders Ben, Asher, and Aidan Spector pursue data-efficient training and GPU utilization via “megakernels”—running full programs as single GPU kernels to reduce idle time between steps.
~couple dozen employees, in-person San Francisco. Participants include Sequoia, GV, Kleiner Perkins; Nvidia among backers. Research-stage “AI neolab” without commercial product yet.