Name a native agent model that uses system-2 reasoning.

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UI-TARS is a native GUI agent model that incorporates system-2 reasoning[1]. The purpose of system-2 reasoning is to enable deliberate decision-making[1]. To enrich reasoning ability, UI-TARS crawls GUI tutorials for logical decision-making[1]. Also, the model augments reasoning for action traces by injecting reasoning patterns, such as task decomposition, long-term consistency, milestone recognition, trial and error, and reflection[1].