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STI-Bench: Are MLLMs Ready for Precise Spatial-Temporal World Understanding?

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arxiv 2503.23765 v6 pith:3ROOSSE4 submitted 2025-03-31 cs.CV

classification cs.CV
keywords mllmsspatial-temporalunderstandingprecisetasksbenchmarkevaluatemodels
verification ladder T0 review T1 audit T2 compute T3 formal
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The use of Multimodal Large Language Models (MLLMs) as an end-to-end solution for Embodied AI and Autonomous Driving has become a prevailing trend. While MLLMs have been extensively studied for visual semantic understanding tasks, their ability to perform precise and quantitative spatial-temporal understanding in real-world applications remains largely unexamined, leading to uncertain prospects. To evaluate models' Spatial-Temporal Intelligence, we introduce STI-Bench, a benchmark designed to evaluate MLLMs' spatial-temporal understanding through challenging tasks such as estimating and predicting the appearance, pose, displacement, and motion of objects. Our benchmark encompasses a wide range of robot and vehicle operations across desktop, indoor, and outdoor scenarios. The extensive experiments reveals that the state-of-the-art MLLMs still struggle in real-world spatial-temporal understanding, especially in tasks requiring precise distance estimation and motion analysis.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Q-GeoMem: Question-Guided Geometric Memory for Video Spatial Reasoning

    cs.CV 2026-05 unverdicted novelty 6.0 of 10

    Question-guided dual geometric memories with relevance-novelty utility reportedly reach state-of-the-art video spatial reasoning on two in-domain and five out-of-distribution benchmarks.

  2. $M^3-Verse$: A "Spot the Difference" Challenge for Large Multimodal Models

    cs.CV 2025-12 conditional novelty 6.0 of 10

    A new benchmark tests whether large multimodal models can compare paired 'before and after' videos to detect scene changes, and finds current models perform near random.

  3. SpaceDrive: Infusing Spatial Awareness into VLM-based Autonomous Driving

    cs.CV 2025-12 conditional novelty 6.0 of 10

    SpaceDrive replaces textual coordinate tokens with shared 3D positional encodings in a VLM driving planner, achieving state-of-the-art open-loop planning on nuScenes and 78.02 Driving Score on Bench2Drive.

  4. The high-speed X-ray camera on AXIS: design and performance updates

    astro-ph.IM 2025-08 unverdicted novelty 4.0 of 10

    An X-ray camera design-update whose supporting full text is a different paper (RynnEC, an embodied AI model), leaving all camera performance claims unverified.

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