MathSpatial Exposes MLLMs' Spatial Reasoning Gap
MLLMs excel in perception but fail mathematical spatial reasoning, scoring under 60% on tasks humans solve at 95% accuracy. MathSpatial introduces a framework with MathSpatial-Bench (2K problems), MathSpatial-Corpus (8K training data), and MathSpatial-SRT for structured reasoning. Fine-tuning Qwen2.5-VL-7B achieves strong results with 25% fewer tokens.








