Mark Barney — Personal Website
Mark Barney is a software builder and consultant based in Connecticut, USA.
He builds the ARC Explainer, a research platform for ARC-AGI, and with Son Pham
peaked at 4th of 2,708 teams on the ARC Prize 2026 ARC-AGI-3 leaderboard.
Before that he spent about fifteen years in the games industry as a producer,
scaling MMOs to eight-figure revenue.
Recent work includes the iOS games Peekaboo Plunk and Peekaboo Calm, an
ARC-AGI research platform at
arc.markbarney.net, and
experiments in human-versus-LLM reasoning. He is open to consulting.
Mark's three sites
Explore