Resurrect Mask AutoRegressive Modeling for Efficient and Scalable Image Generation

• URL: http://arxiv.org/abs/2507.13032v1
• Date: Thu, 17 Jul 2025 12:02:38 GMT
• Title: Resurrect Mask AutoRegressive Modeling for Efficient and Scalable Image Generation
• Authors: Yi Xin, Le Zhuo, Qi Qin, Siqi Luo, Yuewen Cao, Bin Fu, Yangfan He, Hongsheng Li, Guangtao Zhai, Xiaohong Liu, Peng Gao,
• Abstract summary: Masked AutoRegressive (MAR) models have made notable progress in image generation.<n>MAR models have traditionally underperformed when compared to standard AR models.<n>This study refines the MAR architecture to improve image generation quality.
• Score: 62.00800210379539
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: AutoRegressive (AR) models have made notable progress in image generation, with Masked AutoRegressive (MAR) models gaining attention for their efficient parallel decoding. However, MAR models have traditionally underperformed when compared to standard AR models. This study refines the MAR architecture to improve image generation quality. We begin by evaluating various image tokenizers to identify the most effective one. Subsequently, we introduce an improved Bidirectional LLaMA architecture by replacing causal attention with bidirectional attention and incorporating 2D RoPE, which together form our advanced model, MaskGIL. Scaled from 111M to 1.4B parameters, MaskGIL achieves a FID score of 3.71, matching state-of-the-art AR models in the ImageNet 256x256 benchmark, while requiring only 8 inference steps compared to the 256 steps of AR models. Furthermore, we develop a text-driven MaskGIL model with 775M parameters for generating images from text at various resolutions. Beyond image generation, MaskGIL extends to accelerate AR-based generation and enable real-time speech-to-image conversion. Our codes and models are available at https://github.com/synbol/MaskGIL.

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