Step1X-Edit: A Practical Framework for General Image Editing

Shiyu Liu; Yucheng Han; Peng Xing; Fukun Yin; Rui Wang; Wei Cheng; Jiaqi Liao; Yingming Wang; Honghao Fu; Chunrui Han; Guopeng Li; Yuang Peng; Quan Sun; Jingwei Wu; Yan Cai; Zheng Ge; Ranchen Ming; Lei Xia; Xianfang Zeng; Yibo Zhu; Binxing Jiao; Xiangyu Zhang; Gang Yu; Daxin Jiang

arXiv · 2504.17761

Step1X-Edit: A Practical Framework for General Image Editing

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Abstract

In recent years, image editing models have witnessed remarkable and rapid development. The recent unveiling of cutting-edge multimodal models such as GPT-4o and Gemini2 Flash has introduced highly promising image editing capabilities. These models demonstrate an impressive aptitude for fulfilling a vast majority of user-driven editing requirements, marking a significant advancement in the field of image manipulation. However, there is still a large gap between the open-source algorithm with these closed-source models. Thus, in this paper, we aim to release a state-of-the-art image editing model, called Step1X-Edit, which can provide comparable performance against the closed-source models like GPT-4o and Gemini2 Flash. More specifically, we adopt the Multimodal LLM to process the reference image and the user's editing instruction. A latent embedding has been extracted and integrated with a diffusion image decoder to obtain the target image. To train the model, we build a data generation pipeline to produce a high-quality dataset. For evaluation, we develop the GEdit-Bench, a novel benchmark rooted in real-world user instructions. Experimental results on GEdit-Bench demonstrate that Step1X-Edit outperforms existing open-source baselines by a substantial margin and approaches the performance of leading proprietary models, thereby making significant contributions to the field of image editing.

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Shiyu Liu, Yucheng Han, Peng Xing, Fukun Yin, Rui Wang, Wei Cheng, Jiaqi Liao, Yingming Wang, Honghao Fu, Chunrui Han, Guopeng Li, Yuang Peng, Quan Sun, Jingwei Wu, Yan Cai, Zheng Ge, Ranchen Ming, Lei Xia, Xianfang Zeng, Yibo Zhu, Binxing Jiao, Xiangyu Zhang, Gang Yu, Daxin Jiang. 2025-07-31. Step1X-Edit: A Practical Framework for General Image Editing. https://arxiv.org/abs/2504.17761

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