Unified Video Editing with Temporal Reasoner

• URL: http://arxiv.org/abs/2512.07469v1
• Date: Mon, 08 Dec 2025 11:50:18 GMT
• Title: Unified Video Editing with Temporal Reasoner
• Abstract summary: We propose VideoCoF, a novel Chain-of-Frames approach inspired by Chain-of-Thought reasoning.<n>VideoCoF enforces a see, reason, then edit" procedure by compelling the video diffusion model to first predict reasoning tokens.<n>We demonstrate that with a minimal data cost of only 50k video pairs, VideoCoF achieves state-of-the-art performance on VideoCoF-Bench.
• Score: 20.19759768002609
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Existing video editing methods face a critical trade-off: expert models offer precision but rely on task-specific priors like masks, hindering unification; conversely, unified temporal in-context learning models are mask-free but lack explicit spatial cues, leading to weak instruction-to-region mapping and imprecise localization. To resolve this conflict, we propose VideoCoF, a novel Chain-of-Frames approach inspired by Chain-of-Thought reasoning. VideoCoF enforces a ``see, reason, then edit" procedure by compelling the video diffusion model to first predict reasoning tokens (edit-region latents) before generating the target video tokens. This explicit reasoning step removes the need for user-provided masks while achieving precise instruction-to-region alignment and fine-grained video editing. Furthermore, we introduce a RoPE alignment strategy that leverages these reasoning tokens to ensure motion alignment and enable length extrapolation beyond the training duration. We demonstrate that with a minimal data cost of only 50k video pairs, VideoCoF achieves state-of-the-art performance on VideoCoF-Bench, validating the efficiency and effectiveness of our approach. Our code, weight, data are available at https://github.com/knightyxp/VideoCoF.

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