Paper Detail
Tim Rädsch, Yuki M Asano, Hilde Kuehne, Stefan Bauer, Priyank Jaini, Robert Geirhos, Carsten T. Lüth
Video generative models ( VGMs) have become a new frontier that can be used not just for video generation but for a multitude of downstream tasks, including world modeling. To advance these tasks, a good video model must understand the physical reality of the world. Evaluating this understanding is an emerging field and has led to the Physics-IQ benchmark, which quantifies this explicitly by comparing model-generated videos to real-world videos of physical experiments. In this work, we present a systematic audit of the Physics-IQ benchmark, expose shortcomings and propose three solutions that sharpen how we can measure physical understanding of VGMs. Specifically, we improve prompt and ground-truth quality to reduce the influence of confounding factors and further introduce a sample-level scoring system that weights each sample and metric equally. Our resulting benchmark, Physics-IQ Verified, refines 57.6\% of all samples and improves over 34.8\% of prompts. In a comparison study using six image-to-video generative models, we observe moderate but meaningful ranking changes (Kendall's τ= 0.46). We hope Physics-IQ Verified advances the community by providing a more reliable signal toward physically accurate VGMs. The code for the benchmark can be accessed at https://github.com/google-deepmind/physics-iq-benchmark
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@misc{rdsch2026physics,
title = {Physics-IQ Verified},
author = {Tim Rädsch and Yuki M Asano and Hilde Kuehne and Stefan Bauer and Priyank Jaini and Robert Geirhos and Carsten T. Lüth},
year = {2026},
abstract = {Video generative models ( VGMs) have become a new frontier that can be used not just for video generation but for a multitude of downstream tasks, including world modeling. To advance these tasks, a good video model must understand the physical reality of the world. Evaluating this understanding is an emerging field and has led to the Physics-IQ benchmark, which quantifies this explicitly by comparing model-generated videos to real-world videos of physical experiments. In this work, we present a},
url = {https://huggingface.co/papers/2606.18943},
keywords = {video generative models, Physics-IQ benchmark, world modeling, physical understanding, sample-level scoring, Kendall's τ, huggingface daily},
eprint = {2606.18943},
archiveprefix = {arXiv},
}
{}