Seedance 2.5 is an AI video generation model developed by ByteDance. It is designed to produce a complete, single clip video of up to 30 seconds in length in one generation pass, eliminating the need to stitch multiple shorter clips together. The tool accepts multimodal reference inputs, including text, images, audio, and video, and can coordinate up to 50 such assets within a single project to guide the content, motion, sound, and visual style of the output. The generated video can be previewed and edited directly on the platform, with support for secondary video editing that maintains visual consistency. The model outputs native 4K video with 10 bit color depth, which is above the standard 8 bit depth, enabling richer color gradation and smoother tonal transitions suitable for professional workflows and HDR delivery. Seedance 2.5 also supports high quality video continuation for longer sequences. It reduces the appearance of random subtitles and unwanted background music, yielding cleaner outputs that are easier to customize with the user’s own text, music, and post production assets. The tool is available in multiple languages, including Chinese, English, Spanish, Indonesian, Malay, Thai, Arabic, Portuguese, Vietnamese, Japanese, and Korean. Typical use cases include product demos, brand stories, social media content, and other video projects that require a coherent narrative within a single long clip. The workflow involves uploading reference assets, entering a text prompt, and generating the first version of the video directly on the page. Users can then iterate through editing and re generation as needed. Seedance 2.5 is currently in enterprise testing, with a public launch expected in July. It is accessible via an online platform at seedance25ai.cc.