LoCoT2V-Bench: A Benchmark for Long-Form and Complex Text-to-Video Generation

• URL: http://arxiv.org/abs/2510.26412v1
• Date: Thu, 30 Oct 2025 12:00:46 GMT
• Title: LoCoT2V-Bench: A Benchmark for Long-Form and Complex Text-to-Video Generation
• Authors: Xiangqing Zheng, Chengyue Wu, Kehai Chen, Min Zhang,
• Abstract summary: LoCoT2V-Bench is a benchmark specifically designed for long video generation (LVG) under complex input conditions.<n>Based on various real-world videos, LoCoT2V-Bench introduces a suite of realistic and complex prompts.<n>It constructs a multi-dimensional evaluation framework that includes our newly proposed metrics.
• Score: 33.05973337012911
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recently text-to-video generation has made impressive progress in producing short, high-quality clips, but evaluating long-form outputs remains a major challenge especially when processing complex prompts. Existing benchmarks mostly rely on simplified prompts and focus on low-level metrics, overlooking fine-grained alignment with prompts and abstract dimensions such as narrative coherence and thematic expression. To address these gaps, we propose LoCoT2V-Bench, a benchmark specifically designed for long video generation (LVG) under complex input conditions. Based on various real-world videos, LoCoT2V-Bench introduces a suite of realistic and complex prompts incorporating elements like scene transitions and event dynamics. Moreover, it constructs a multi-dimensional evaluation framework that includes our newly proposed metrics such as event-level alignment, fine-grained temporal consistency, content clarity, and the Human Expectation Realization Degree (HERD) that focuses on more abstract attributes like narrative flow, emotional response, and character development. Using this framework, we conduct a comprehensive evaluation of nine representative LVG models, finding that while current methods perform well on basic visual and temporal aspects, they struggle with inter-event consistency, fine-grained alignment, and high-level thematic adherence, etc. Overall, LoCoT2V-Bench provides a comprehensive and reliable platform for evaluating long-form complex text-to-video generation and highlights critical directions for future method improvement.

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