Author

Iddo Drori

Columbia University

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Preprint Aug 2026

Twin: Playing an Unknown Game with a Test-Time Digital Twin

A Test-time World-model Inference (Twin) system, in which a frontier coding agent writes an executable world model for completing continual learning tasks, such as ARC-AGI-3 games, which is strong enough to recover the true transitions of the game and the goal on nearly all levels.

Alexy Skoutnev, Kirill Acharya, Gaston Longhitano et al. · 0 citations