Seedance 2: Text & Image to Video Online
Bottom line
ByteDance's flagship video model: 4–15 second clips at up to 4K, including 21:9 cinema-wide. Start from a prompt or a still image in the Image to Video tool; VdoBloom shows the exact credit cost before each Seedance 2 run, with no separate Seedance account.
On paper, Seedance 2 has the widest spec sheet of any ByteDance video model on VdoBloom, and it carries a 4.9 rating in the directory. Duration is selectable in single-second steps from 4 to 15. Resolution runs through four tiers — 480p, 720p, 1080p, and 4K. Aspect ratios cover six options, including the 21:9 cinema-wide frame that most video models simply do not offer.
It accepts both text prompts and starting images, so the same model serves a written scene description and an animated key visual. The practical consequence of per-second duration control is worth underlining: when an edit calls for a 7-second insert, you generate 7 seconds instead of trimming a 10-second clip.
The 4K tier positions it for hero work — trailer shots, landing-page loops, anything that will be viewed large. With twelve durations, four resolution tiers, and six frame shapes in play, settings move the credit bill more here than on simpler models, so the workable rhythm is drafting at 480p and reserving 4K for the take you keep.
What creators use Seedance 2 for
- Render 4K 21:9 hero loops for landing pages and trailer beats.
- Generate a 7-second insert that drops into an edit at exactly the right length, no trimming required.
- Animate one campaign key visual into matching 16:9 and 9:16 cuts from the same starting image.
How to use Seedance 2 on VdoBloom
- 1Open the Image to Video tool and select Seedance 2 from the model picker.
- 2Write your prompt — or upload a starting image for image-to-video.
- 3Choose your duration (4–15s), quality (480p/720p/1080p/4k), aspect ratio, review the credit cost, and generate.
Frequently asked questions
Can Seedance 2 really output 4K video?
Yes. 4K sits at the top of its four resolution tiers, above 480p, 720p, and 1080p. Higher tiers use more VdoBloom credits, and the exact cost for your chosen settings is shown before you generate.
What is the 21:9 aspect ratio for?
21:9 is the cinema-widescreen frame used in trailers and film-style work, and it is one of six ratios Seedance 2 supports alongside 16:9, 4:3, 1:1, 3:4, and 9:16. Few video models generate it natively.
Does Seedance 2 work from both text and images?
Yes, it handles text-to-video and image-to-video from the same page. Either way you get single-second duration control across the full 4-to-15-second range.
How strict is Seedance 2's content filter?
The Seedance 2 generation — this model plus its Fast and Mini siblings — runs MODERATE filtering, a step stricter than the HOT label carried by the family's earlier Seedance 1.5 Pro and V1 models. The commercial and hero-shot work its 4K tier targets passes normally, while explicit material is refused; if a project needs the family's more permissive filtering, Seedance 1.5 Pro remains the HOT-labeled option.