Skywork UniPic:用于视觉理解与生成的统一自回归建模
Skywork UniPic: Unified Autoregressive Modeling for Visual Understanding and Generation
AI总结:
Skywork UniPic是一个15亿参数的自回归模型,统一了图像理解、生成和编辑,在GenEval等基准上取得领先成绩,且仅需不到15GB显存,为高保真多模态AI提供了高效实用方案。
摘要:
我们推出了Skywork UniPic,一个拥有15亿参数的自回归模型,它在单一架构内统一了图像理解、文生图以及图像编辑功能,无需任务特定的适配器或模块间连接器,并证明了紧凑的多模态系统可以在商用硬件上实现最先进的性能。Skywork UniPic在GenEval上取得了0.86的分数,超越了大多数现有的统一模型;在DPG-Bench上创下了85.5的复杂生成新纪录;在GEditBench-EN上达到5.83,在ImgEdit-Bench上达到3.49(用于图像编辑);并且生成1024×1024的图像仅需不到15GB的GPU内存(例如RTX 4090)。(1)一种解耦编码策略,利用掩码自回归编码器进行合成,使用SigLIP2编码器进行理解,两者均馈送给共享的自回归解码器;(2)一种渐进式、分辨率感知的训练计划,从256×256扩展到1024×1024,同时动态解冻参数以平衡容量和稳定性;(3)精心策划的、1亿规模的数据集,并辅以任务特定的奖励模型来优化生成和编辑目标。通过证明高保真多模态集成不必承受高昂的资源需求,Skywork UniPic为可部署的高保真多模态AI建立了一种实用范式。代码和权重可在https://huggingface.co/Skywork/Skywork-UniPic-1.5B公开获取。
英文摘要:
We introduce Skywork UniPic, a 1.5 billion-parameter autoregressive model that unifies image understanding, text-to-image generation, and image editing within a single architecture-eliminating the need for task-specific adapters or inter-module connectors-and demonstrate that compact multimodal systems can achieve state-of-the-art performance on commodity hardware. Skywork UniPic achieves a GenEval score of 0.86, surpassing most existing unified models; sets a new DPG-Bench complex-generation record of 85.5; attains 5.83 on GEditBench-EN and 3.49 on ImgEdit-Bench for image editing; and generates 1024 x 1024 images with under 15 GB of GPU memory (e.g., RTX 4090). (1) a decoupled encoding strategy that leverages a masked autoregressive encoder for synthesis and a SigLIP2 encoder for understanding, all feeding a shared autoregressive decoder; (2) a progressive, resolution-aware training schedule scaling from 256 x 256 to 1024 x 1024 while dynamically unfreezing parameters to balance capacity and stability; and (3) meticulously curated, 100 million-scale datasets augmented with task-specific reward models to refine generation and editing objectives. By demonstrating that high-fidelity multimodal integration need not incur prohibitive resource demands, Skywork UniPic establishes a practical paradigm for deployable, high-fidelity multimodal AI. Code and weights are publicly available at https://huggingface.co/Skywork/Skywork-UniPic-1.5B.
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