Seedance 2.0
ByteDance · AI videoSeedance 2.0 is ByteDance's next-generation video model: it generates video with synchronized audio from text, images, video clips, and audio in one pass, using a unified multimodal architecture. Compared with earlier Seedance releases, 2.0 emphasizes multimodal references (multiple images, videos, and audio in one job), stronger motion and physics, optional video editing and extension workflows, and flexible duration and aspect handling where the API exposes them.
It targets creators who want native audio–video sync, dialogue in prompts (quoted speech for lip sync), and more control over consistency across shots. Official documentation from ByteDance and hosted API providers lists supported resolutions, duration ranges, and prompt patterns for referencing assets.
Key features and benefits
Multimodal inputs
Typical Seedance 2.0 deployments let you combine reference images, video clips, and audio; prompts can reference multiple assets when the host documents slot patterns (for example indexed placeholders). Advanced integrations support richer multi-asset jobs than text-only video.
Native synchronized audio
Audio and video are generated together, so dialogue, effects, and music stay aligned with picture. You can describe speech in double quotes in prompts for lip-synced delivery. Silent output may be available where the API supports turning audio off.
Editing and extension
The model family supports describing edits to an existing clip or continuing a reference video with consistent characters and style. Exact edit and extension modes depend on the provider's API surface.
Resolution and aspect
Commercial endpoints commonly offer multiple resolution tiers (for example lower and HD-class presets) and vertical or horizontal aspect ratios suited to social platforms. Always confirm pixel dimensions and duration limits on the provider you use.
Technical specifications
Developer / familyByteDance Seedance (2.0 generation)
Typical resolutionsMultiple tiers including standard-definition and 720p-class vertical presets on common hosts; verify enumeration per API
Typical durationShort clips on the order of several to ~12 seconds per generation on documented endpoints; limits vary by provider
InputsText prompt; optional images; optional reference video and audio where supported
Use cases and applications
Seedance 2.0 suits short-form social, ads, and narrative clips where you want native audio, dialogue, and motion in one generation.
Teams comparing ByteDance video stacks often evaluate Seedance 2.0 against earlier Seedance tiers for lip-sync quality, multimodal conditioning, and cost–latency tradeoffs.
Why this model
Choose Seedance 2.0 when you want ByteDance's unified audio–video model with synchronized sound and multimodal capabilities, and when your pipeline can supply the asset references and duration settings your host expects.
What you should know
480p vs 720p: how do I choose?
Lower tiers reduce bandwidth and compute for batch or preview work; higher tiers add detail for hero clips. Compare latency, cost, and visual needs against your provider's pricing table.
Where are authoritative specs?
Use ByteDance's Seedance documentation and the schema of whichever API or cloud product you integrate—limits change as hosts update models.