---
language:
- en
license: cc-by-4.0
size_categories:
- 1K<n<10K
task_categories:
- visual-question-answering
- multiple-choice
- text-generation
pretty_name: TemMed-Bench

configs:
- config_name: Image Pair Selection
  data_files:
  - split: test
    path: TestSet_ImagePairSelection.json

- config_name: VQA & Report Generation
  data_files:
  - split: test
    path: TestSet_VQA_ReportGeneration.json

- config_name: VQA_Selected_2000
  data_files:
  - split: test
    path: TestSet_SelectedVQA_2000.json

- config_name: TrainSet KnowledgeCorpus
  data_files:
  - split: train
    path: TrainSet_KnowledgeCorpus.json
---






# TemMed-Bench: Evaluating Temporal Medical Image Reasoning in Vision-Language Models

[**🌐 Homepage**](https://temmedbench.github.io/) | [**🐱 Github**](https://github.com/Levi-ZJY/TemMed-Bench) | [**📖 Paper**](https://arxiv.org/abs/2509.25143)




## Intro

<img src="./misc/Teaser_Figure.png" width="750" />

TemMed-Bench features three primary highlights. 
- **Temporal reasoning focus:** Each sample in TemMed-Bench includes historical condition information, which challenges models to analyze changes in patient conditions over time.
- **Multi-image input:** Each sample in TemMed-Bench contains multiple images from different visits as input, emphasizing the need for models to process and reason over multiple images.
- **Diverse task suite:** TemMed-Bench comprises three tasks, including VQA, report generation, and image-pair selection. Additionally, TemMed-Bench includes a knowledge corpus with more than 17,000 instances to support retrieval-augmented generation (RAG).




## Benchmark Overview

- **Examples of the three tasks in TemMed-Bench:**

<img src="./misc/Task_Figure.png" width="700" />


- **Key statistics of TemMed-Bench:**

<img src="./misc/Data_Amount.png" width="330" />


## Load Dataset

Please refer to [**🐱 Github**](https://github.com/Levi-ZJY/TemMed-Bench)




## Contact

* Junyi Zhang: JunyiZhang2002@g.ucla.edu


## Citation

```
@misc{zhang2025temmedbenchevaluatingtemporalmedical,
      title={TemMed-Bench: Evaluating Temporal Medical Image Reasoning in Vision-Language Models}, 
      author={Junyi Zhang and Jia-Chen Gu and Wenbo Hu and Yu Zhou and Robinson Piramuthu and Nanyun Peng},
      year={2025},
      eprint={2509.25143},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2509.25143}, 
}
```