Datasets:
dataset_info:
features:
- name: image
dtype: image
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int32
- name: meta_info
struct:
- name: title
dtype: string
- name: journal
dtype: string
- name: doi
dtype: string
- name: url
dtype: string
splits:
- name: en
num_bytes: 511040465.75
num_examples: 1525
- name: zh
num_bytes: 510708453.75
num_examples: 1525
download_size: 218600714
dataset_size: 1021748919.5
configs:
- config_name: default
data_files:
- split: en
path: data/en-*
- split: zh
path: data/zh-*
license: mit
task_categories:
- visual-question-answering
language:
- en
- zh
tags:
- chemistry
RxnBench: Benchmark for Chemical Reaction Figure Understanding
📘 Benchmark Summary
RxnBench is a visual question answering (VQA) benchmark comprising 1,525 multiple-choice questions (MCQs) at the PhD-level of organic chemistry reaction understanding.
The benchmark is built from 305 scientific figures drawn from high-impact OpenAssess journals. For each figure, domain experts carefully designed five multiple-choice VQA questions targeting the interpretation of organic reaction diagrams. These questions were further refined through multiple rounds of rigorous review and revision to ensure both clarity and scientific accuracy. The questions cover a variety of types, including the description of chemical reaction images, extraction of reaction content, recognition of molecules or Markush structures, and determination of mechanisms. This benchmark challenges visual-language models on their foundational knowledge of organic chemistry, multimodal contextual reasoning, and chemical reasoning skills.
The benchmark is released in both English and Chinese versions.
📊 Benchmark Leaderboard
We evaluated several of the latest popular MLLMs, including both closed-source and open-source models.
| Moldel | Weight | UpdateTime | RxnBench-En | RxnBench-Zh |
|---|---|---|---|---|
| gemini-2.5-pro | Proprietary | 20250617 | 0.9095 | Doing |
| doubao-1.5-thinking-vision-pro | Proprietary | 20250428 | 0.9056 | 0.9161 |
| o3 | Proprietary | 20250416 | 0.9056 | 0.9115 |
| o4 mini | Proprietary | 20250416 | 0.9062 | 0.9075 |
| doubao-1.5-vision-pro | Proprietary | 20250328 | 0.8518 | 0.8669 |
| gpt-4o | Proprietary | 20240806 | 0.7462 | 0.7436 |
| gemini-2.5-flash | Proprietary | 20250617 | 0.6925 | 0.8557 |
| gpt-4o mini | Proprietary | 20240718 | 0.6636 | 0.6066 |
| Choice longest answer | - | - | 0.426 | 0.452 |
| Random | - | - | 0.250 | 0.250 |
📖 Citation
our paper coming soon ...