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About this paper
Yifan Zhou, Ziyang Gong, Xiaojun Ye, Yifei Liu, Donggang Li, Xiaolong Zhou, Zhihang Zhong, Xue Yang
SpatialBrain combines current-task scene memory with reusable spatial procedures and experience that guides when to use them, while keeping model weights fixed. It compares matched direct answers with tool-assisted reasoning across five benchmarks, using an unweighted mean. Scores rise from 67.5 to 72.6, improving on four benchmarks and tying on SAT; gains vary by task, with regressions in some categories.
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