TC-Bench is a specialized tool for assessing the temporal coherence of video generation models. It measures a model's ability to introduce new concepts and perform relationship transformations across different time points by using carefully designed text prompts, corresponding real videos, and powerful evaluation metrics. Applicable to both text-conditional and image-conditional models, TC-Bench facilitates generative frame interpolation. The development of this tool aims to advance video generation technology, leading to higher quality and consistency in generated videos.