Kaggle Game Arena pits ten frontier models against each other in chess, poker and Werewolf: Gemini 3 leads chess and Werewolf, GPT-5.2 tops poker at +46.6 BB/100, and rankings do not agree across games
This technical report introduces Kaggle Game Arena, an open head-to-head evaluation platform in which ten frontier models play large-scale round-robin matches in Chess, Poker and Werewolf through a uniform text harness (900,000 poker hands, 180,000 per model), ranking them by objective outcomes such as wins, chip counts and role-level decomposition rather than subjective judgment, and reports sharp within-game stratification alongside rankings that do not agree across games.