arXiv:2409.18869cs.CV2024-09被引 771

用纯下一个词预测训练多模态模型,性能超越主流方案。

Emu3: Next-Token Prediction is All You Need

论文配图:Emu3: Next-Token Prediction is All You Need
图 1 · 摘自论文原文
  • 仅用下一个词预测训练,统一文本、图像、视频的离散化序列
  • 生成与感知任务均超越SDXL和LLaVA-1.6等标杆模型
  • 无需扩散或组合架构,适合追求简洁高效的多模态研究者

尽管下一个词预测被视为通向通用人工智能的有前途路径,但在多模态任务中仍难以超越扩散模型(如Stable Diffusion)和组合方法(如CLIP结合大语言模型)。本文提出Emu3,一套仅通过下一个词预测训练的最先进多模态模型。通过将图像、文本和视频编码为离散空间中的符号序列,我们从零开始在多模态序列混合数据上训练单一Transformer。Emu3在生成与感知任务中均优于多个成熟专用模型,表现超越旗舰模型SDXL和LLaVA-1.6,且无需扩散或组合结构。Emu3还能通过预测视频序列中的下一个词生成高保真视频。该方法简化复杂多模态模型设计,聚焦于统一的“令牌”机制,为训练与推理的可扩展性开辟新可能。结果表明,下一个词预测是构建超越语言的通用多模态智能的可行路径。我们开源了关键技术与模型,以推动该方向的研究。

原文摘要 · Abstract (English)

While next-token prediction is considered a promising path towards artificial general intelligence, it has struggled to excel in multimodal tasks, which are still dominated by diffusion models (e.g., Stable Diffusion) and compositional approaches (e.g., CLIP combined with LLMs). In this paper, we introduce Emu3, a new suite of state-of-the-art multimodal models trained solely with next-token prediction. By tokenizing images, text, and videos into a discrete space, we train a single transformer from scratch on a mixture of multimodal sequences. Emu3 outperforms several well-established task-specific models in both generation and perception tasks, surpassing flagship models such as SDXL and LLaVA-1.6, while eliminating the need for diffusion or compositional architectures. Emu3 is also capable of generating high-fidelity video via predicting the next token in a video sequence. We simplify complex multimodal model designs by converging on a singular focus: tokens, unlocking great potential for scaling both during training and inference. Our results demonstrate that next-token prediction is a promising path towards building general multimodal intelligence beyond language. We open-source key techniques and models to support further research in this direction.

多模态下一个词预测视频生成统一模型

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