Seedance 2.5 is a text-to-video generation model from ByteDance, positioned as a next-generation upgrade within its seed video family. It is engineered around up to 30-second clip generation, bringing it into a duration range suited for short-form storytelling, ads, and social content rather than brief teaser loops. The model accepts multimodal reference inputs, including explicit first-frame and last-frame URLs plus up to 30 reference images and multiple reference videos, giving creators fine-grained control over shot composition, character continuity, and stylistic anchoring across scenes. This combination of longer runtime and richer reference scaffolding points to a workflow focus: turning a concise text prompt plus visual seeds into a coherent, edit-ready video rather than a single improvised clip.

In practical use, Seedance 2.5 is offered through API-style integrations with tiered pricing tied to output resolution, distinguishing lower-cost 480P drafts from sharper 720P renders and applying differentiated rates depending on whether reference video is supplied as input. Reference video inputs are capped at common MP4, QuickTime, and Matroska formats with size and length limits, reinforcing its role as a production-oriented tool that fits inside existing asset pipelines. Its blend of precise local editing, multimodal reference control, and flexible prompt conditioning makes it a strong fit for teams that need controllable, longer-duration AI video for marketing, prototyping, and creative iteration, while the current beta pricing signals that cost structures are still settling as the model matures.