Bytedance
Video modelSeedance 2.0 fast is the version of the Seedance 2.0 family designed for faster generation and frequent iteration. It suits testing shots, movements, and pacing before final production: creators can start from text or add image, video, and audio references to quickly assess whether an idea produces the intended motion. For social media content, product concept testing, and multiple advertising drafts, an early viewable version can be more useful than aiming for the most complete output from the start. It retains the family's multimodal inputs and synchronized audio capabilities. This version offers 480p to 4K output and durations of four to fifteen seconds, allowing composition, movement, and messaging directions to be compared under the same conditions. Assign images to characters or settings, video to movement and camera behavior, and audio to rhythm, instead of packing too many vague requirements into a single prompt. Even when speed is the priority, review character continuity and whether the sound and visuals meet brand and publication standards.
Compare multiple shot, movement, and visual directions in a short time.
Add images, video, or audio to guide subject appearance, movement, and sound separately.
Generate clips with sound and choose from multiple aspect ratios and resolutions.