ARC-AGI-3 · · GPT-6.1 Sol
Meeting Tufa, the mystery puzzle masters and Matt at MIT

We got to meet the competition from Tufa Labs, the advanced ARC3 puzzle masters who shall remain nameless, and Matt Mazur, who heads testing at ARC Prize. It was a great thrill to meet everyone in person at the ARC gathering at MIT.
From left to right in the photo: Tufa’s Dries Smit, the two mysterious puzzle masters, Son Pham and Matt. Dries, as it turns out, is very tall. The puzzle masters’ names will remain a puzzle.
For our customary cyberpunk cartoon, everybody gets extra gear. The puzzle masters get the most advanced equipment, naturally. The summit badge supplies the pink puzzle shapes and midnight-blue setting. The smiles are real; the cybernetics were added afterward.
Original group photo supplied by Mark Barney, October 23; people and positions identified by the editor · ARC Prize Research Summit 2026 — October 23, hosted in collaboration with MIT · Tufa Labs — Dries Smit, AI researcher · ARC Prize Foundation team — Matt Mazur, Model Testing & Analysis