MM-OptBench: A Solver-Grounded Benchmark for Multimodal Optimization Modeling

Fuente: arXiv
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Main Authors: Li, Zhong, Huang, Qi, Zhu, Yuxuan, Amiri, Mohammad Mohammadi, van Stein, Niki, Bäck, Thomas, van Leeuwen, Matthijs, Wen, Zaiwen, Yang, Lincen
Format: Preprint
Published: 2026
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author Li, Zhong
Huang, Qi
Zhu, Yuxuan
Amiri, Mohammad Mohammadi
van Stein, Niki
Bäck, Thomas
van Leeuwen, Matthijs
Wen, Zaiwen
Yang, Lincen
author_facet Li, Zhong
Huang, Qi
Zhu, Yuxuan
Amiri, Mohammad Mohammadi
van Stein, Niki
Bäck, Thomas
van Leeuwen, Matthijs
Wen, Zaiwen
Yang, Lincen
contents Optimization modeling translates real decision-making problems into mathematical optimization models and solver-executable implementations. Although language models are increasingly used to generate optimization formulations and solver code, existing benchmarks are almost entirely text-only. This omits many optimization-modeling tasks that arise in operational practice, where requirements are described in text but instance information is conveyed through visual artifacts such as tables, graphs, maps, schedules, and dashboards. We introduce multimodal optimization modeling, a benchmark setting in which models must construct both a mathematical formulation and executable solver code from a text-and-visual problem specification. To evaluate this setting, we develop a solver-grounded framework that generates structured optimization instances, verifies each with an exact solver, and builds both the model-facing inputs and hidden reference files from the same verified source. We instantiate the framework as MM-OptBench, a benchmark of 780 solver-verified instances spanning 6 optimization families, 26 subcategories, and 3 structural difficulty levels. We evaluate 9 multimodal large language models (MLLMs), including 6 frontier general-purpose models and 3 math-specialized models, with aggregate, family-level, difficulty-level, and failure-mode analyses. The results show that the task remains far from solved: the best two models reach 52.1% and 51.3% pass@1, while on average across the six general-purpose MLLMs, pass@1 is 43.4% on easy instances and 15.9% on hard instances. All three math-specialized MLLMs solve 0/780 instances. Failure attribution shows that errors arise both when extracting instance data from text and visuals and when turning extracted data into solver-correct formulations and code. MM-OptBench provides a testbed for solver-grounded, decision-oriented multimodal intelligence.
format Preprint
id arxiv_https___arxiv_org_abs_2605_12154
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle MM-OptBench: A Solver-Grounded Benchmark for Multimodal Optimization Modeling
Li, Zhong
Huang, Qi
Zhu, Yuxuan
Amiri, Mohammad Mohammadi
van Stein, Niki
Bäck, Thomas
van Leeuwen, Matthijs
Wen, Zaiwen
Yang, Lincen
Artificial Intelligence
Optimization modeling translates real decision-making problems into mathematical optimization models and solver-executable implementations. Although language models are increasingly used to generate optimization formulations and solver code, existing benchmarks are almost entirely text-only. This omits many optimization-modeling tasks that arise in operational practice, where requirements are described in text but instance information is conveyed through visual artifacts such as tables, graphs, maps, schedules, and dashboards. We introduce multimodal optimization modeling, a benchmark setting in which models must construct both a mathematical formulation and executable solver code from a text-and-visual problem specification. To evaluate this setting, we develop a solver-grounded framework that generates structured optimization instances, verifies each with an exact solver, and builds both the model-facing inputs and hidden reference files from the same verified source. We instantiate the framework as MM-OptBench, a benchmark of 780 solver-verified instances spanning 6 optimization families, 26 subcategories, and 3 structural difficulty levels. We evaluate 9 multimodal large language models (MLLMs), including 6 frontier general-purpose models and 3 math-specialized models, with aggregate, family-level, difficulty-level, and failure-mode analyses. The results show that the task remains far from solved: the best two models reach 52.1% and 51.3% pass@1, while on average across the six general-purpose MLLMs, pass@1 is 43.4% on easy instances and 15.9% on hard instances. All three math-specialized MLLMs solve 0/780 instances. Failure attribution shows that errors arise both when extracting instance data from text and visuals and when turning extracted data into solver-correct formulations and code. MM-OptBench provides a testbed for solver-grounded, decision-oriented multimodal intelligence.
title MM-OptBench: A Solver-Grounded Benchmark for Multimodal Optimization Modeling
topic Artificial Intelligence
url https://arxiv.org/abs/2605.12154