SEEDANCE 2.0 FAST REFERENCE TO VIDEO

Seedance 2.0 Fast Reference to Video is ByteDance's most advanced video generation model, purpose-built for creators who need cinematic-quality video with rich, synchronized audio — all generated from a flexible combination of text prompts, reference images, reference videos, and even audio inputs. Whether you're a filmmaker previewing a scene, a designer animating a concept, or a content creator producing scroll-stopping social media clips, this model delivers director-level control over your visual storytelling.

At its core, Seedance 2.0 Fast Reference to Video transforms your creative vision into polished video output with real-world physics, natural motion, and native audio generation. What sets it apart is its multi-modal reference system: you can supply up to nine reference images, up to three reference videos, and up to three audio files, then weave them directly into your text prompt to guide the generation. For example, you might upload a character portrait, a background environment photo, and a voiceover clip, then write a prompt that tells the model exactly how to combine them — referencing each input naturally within your description. This makes it an extraordinarily powerful tool for bringing storyboards to life, creating stylized animations, and producing lip-synced talking head videos.

The model's native audio generation is enabled by default and produces synchronized sound effects, ambient soundscapes, and lip-synced speech that match the visual action on screen. This means your generated videos arrive ready to use — no need to source or manually sync audio in post-production. If you prefer a silent video or plan to add your own audio track, you can simply toggle audio generation off.

Seedance 2.0 offers a versatile range of creative controls that let you shape the output to your exact needs. You can choose from seven aspect ratio options: 16:9 for standard landscape and widescreen content, 9:16 for vertical and portrait-oriented videos perfect for social platforms like TikTok or Instagram Reels, 1:1 for square formats, 4:3 and 3:4 for classic and tall compositions, 21:9 for ultrawide cinematic formats ideal for film-style sequences, or auto to let the model intelligently decide based on your prompt. Video duration is equally flexible, ranging from 4 to 15 seconds, with an auto option that allows the model to determine the ideal length based on the narrative described in your prompt. Resolution can be set to 720p for a balance of quality and generation speed, or 480p when you want faster results — useful for rapid iteration and previewing ideas before committing to a final render.

The reference-based workflow is where this model truly shines for creative professionals. By uploading reference images (JPEG, PNG, or WebP, up to 30 MB each), you can guide the model's visual style, character appearance, or scene composition. Reference videos (MP4 or MOV, with a combined duration between 2 and 15 seconds) let you provide motion references, pacing cues, or existing footage to build upon. Reference audio files (MP3 or WAV, up to 15 seconds combined) can drive lip-sync animation or set the sonic tone for a scene — though audio inputs require at least one reference image or video alongside them. You can combine up to 12 total files across all input types, giving you tremendous creative latitude. Within your prompt, you simply reference these inputs using natural tags like @Image1, @Video2, or @Audio1 to tell the model how each reference should influence the final output.

This model is especially well-suited for character animation, visual effects previsualization, music video concepts, product demonstrations, social media content, and narrative short films. Its strengths in stylized content, transformation, and lip-sync capabilities make it a standout choice for creators working across these genres. The real-world physics simulation means objects fall, water flows, and characters move with believable weight and momentum, lending a cinematic polish that elevates generated content beyond typical AI video.

For reproducibility, you can set a seed value to generate similar results across multiple runs, which is helpful when iterating on a concept and wanting consistent outputs. Note that even with the same seed, slight variations may occur between generations.

A few practical considerations to keep in mind: reference videos should be between roughly 480p and 720p resolution for best results. Individual image files can be up to 30 MB, while the total size of all video references should stay under 50 MB, and each audio file should be no larger than 15 MB. The total number of files across images, videos, and audio combined must not exceed 12. Working within these guidelines ensures the model can process your references effectively and deliver the highest-quality output.

Seedance 2.0 Fast Reference to Video represents a significant leap in accessible, high-quality video generation. It brings together multimodal input flexibility, cinematic visual quality, native audio with lip-sync, and intuitive creative controls into a single, powerful creative tool — designed for creators who demand professional results without the complexity of traditional production workflows.