Seedance 2.5Video that arrives with its own soundtrack
Seedance 2.5 is the flagship model in the lineup: long takes, native sound, and the widest set of reference inputs of anything here.
What Seedance 2.5 is for
Most video models hand you a silent clip and leave the sound design to you. Seedance 2.5 does not. Picture and audio are produced together, so a line of dialogue lands on the right lip movement, a door closes on the right frame, and the score swells where the shot asks for it. Put spoken lines in double quotes in your prompt and the model performs them.
It also takes direction from more than words. Give it a first frame to open on, a last frame to land on, or attach up to thirty reference images, ten reference videos and ten reference audio files and describe how they should be used. That is enough to hold a character, a product, a location or a camera move consistent across a sequence of shots rather than rerolling until something matches.
Runs stretch to thirty seconds in a single take, or you can hand the length back to the model and let it pick what the prompt needs. Every option the model exposes is in the panel, nothing is hidden behind a preset, and the credit cost is shown before you spend anything.
Best for: Finished work where the sound matters as much as the picture.
Specifications
- Clip length
- 4 to 30 seconds
- Resolution
- 480p, 720p, 1080p
- Aspect ratios
- 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, Adaptive
- Audio
- Dialogue, effects and score generated in sync
- Accepts
- Text prompt, first frame image, last frame image, reference images, reference videos, reference audio
- Delivers
- MP4 you can download and keep
Why people pick it
Sound made with the picture
Dialogue, room tone, effects and music are generated alongside the frames instead of dubbed on afterwards, so nothing drifts out of sync.
Thirty seconds in one take
Long enough for a full spot or a scene with a beginning and an end, not just a three second loop.
Reference almost anything
Images for subject and style, video for motion and camera, audio for rhythm and voice. Up to fifty reference files in a single run.
First and last frame control
Pin where the shot opens and where it lands, and let the model work out the movement between them.
Every control, nothing hidden
This list is generated from the panel itself, so it always matches what you actually get when you open the studio.
Prompt
Prompt
Optional when a media input is supplied. Seedance 2.5 works best with detailed, structured production brief style prompts.
First frame
First frame image for image to video or first and last frame generation. Cannot be combined with references.
Last frame
Last frame image. Requires a first frame image. Cannot be combined with references.
References
Reference images
Up to 30 images used as subject, style or composition references.
Reference videos
Up to 10 videos used for motion, camera or pacing reference.
Reference audio
Up to 10 audio files used to drive dialogue, rhythm or score.
Output
Duration
Video duration in seconds. Set to intelligent and the model picks the best length. Editing mode requires intelligent.
Resolution
Video resolution.
Aspect ratio
Frame, editing and extension modes require adaptive.
Sound and branding
Generate audio
Generate synchronized audio with the video, including dialogue, sound effects and background music. Put spoken lines in double quotes.
Watermark
Add a watermark to the generated video.
Advanced
Output format
Output video container format.
Seed
Random seed. Set for reproducible generation. Reproducibility is not guaranteed.
What people make with Seedance 2.5
- Product films where the voiceover and the cut have to agree
- Dialogue scenes and character moments with lip synced speech
- Social spots that need to work with the sound on
- Music led brand idents and title sequences
- Previsualisation for a shoot you are about to pitch
- Sequences that reuse the same character or set across shots
How it compares
Every model shares the same panel, the same credits and the same history, so moving between them costs you nothing but a click.
Seedance 2.5
Flagship · Considered · from 8 credits
Cinematic video with synchronized audio
You are reading this oneSeedance 1.0 Pro
High fidelity · Balanced · from 6 credits
Sharp 1080p motion from a prompt or a frame
Read moreSeedance 1.0 Pro Fast
Quick turnaround · Fast · from 3 credits
The Pro look, back in a fraction of the time
Read moreSeedance 1.0 Lite
Lightweight · Fastest · from 5 credits
The cheapest way to see an idea move
Read moreQuestions people ask
How long can a Seedance 2.5 clip be?
Up to thirty seconds in one continuous generation. You can also set the duration to automatic and let the model choose the length that suits the prompt, which is billed at five seconds and reconciled once the render returns.
Does Seedance 2.5 generate audio?
Yes. Audio generation is on by default and produces dialogue, sound effects and background music timed to the picture. Put any spoken lines inside double quotes in your prompt. You can switch it off if you plan to score the clip yourself, which also lowers the credit cost.
Can I use my own images, video and audio as references?
You can attach up to thirty reference images, ten reference videos and ten reference audio files. Upload them or paste a URL. References and first or last frame images cannot be combined in the same run, and the panel tells you before you spend credits.
What resolutions and aspect ratios are supported?
480p, 720p and 1080p, in 16:9, 4:3, 1:1, 3:4, 9:16, 21:9 or an adaptive ratio that follows your input frame. Frame driven runs expect the adaptive ratio.
What does a render cost?
Credits are charged per second and scale with resolution, with a surcharge when audio is generated. The exact figure appears on the Generate button before you commit, and a failed or cancelled render refunds itself automatically.
Do I need a prompt if I upload a frame?
No. A first frame image or a set of references is enough on its own, although a prompt gives you far more control over what happens across the shot.
Try Seedance 2.5 now
Create an account and you start with 500 credits, enough to render your first clips today. Failed renders refund themselves.
Open the studio