🔥 RAVEN: Real-time Autoregressive Video Extrapolation with Consistency-model GRPO

💡 The paper introduces RAVEN, a real-time autoregressive video extrapolation network, and CM-GRPO, a consistency model-based reinforcement learning approach. The problem addressed is the gap between the history distributions encountered during training and those arising at inference in causal autoregressive video diffusion models, which constrains generation quality over long horizons.

To solve this problem, RAVEN repacks each self rollout into an interleaved sequence of clean historical endpoints and noisy denoising states, aligning training attention with inference-time extrapolation. This formulation allows downstream chunk losses to supervise the history representations on which future predictions depend.

Additionally, CM-GRPO reformulates a consistency sampling step as a conditional Gaussian transition and applies online reinforcement learning directly to this kernel, avoiding the Euler-Maruyama auxiliary process adopted in prior flow-model RL formulations.

The results demonstrate that RAVEN surpasses recent causal video distillation baselines across quality, semantic, and dynamic degree evaluations. Furthermore, CM-GRPO provides further gains when combined with RAVEN, indicating the effectiveness of the proposed methods in improving real-time video generation.

Overall, the paper presents a novel approach to real-time video generation through causal autoregressive extrapolation with improved training alignment and consistency model-based reinforcement learning, achieving state-of-the-art results in video generation quality and performance.

📅 Published on May 14

🔗 Links:
• GitHub: https://github.com/huggingface
• arXiv: https://arxiv.org/abs/2605.15190
• PDF: https://arxiv.org/pdf/2605.15190
• Project Page: https://yanzuo.lu/raven/

🤖 Models citing this paper:
• https://huggingface.co/mvp-lab/RAVEN

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📢 By: https://xn--r1a.website/PaperNexus

#AutoregressiveVideoExtrapolation #VideoDiffusionModels #ReinforcementLearningForVideo #ConsistencyModelBasedRL #RealTimeVideoGeneration