Video
Seedance 1 Pro Fast
Create short motion studies with Seedance 1 Pro Fast.
- Text to video
- Image to video
Sign in to create. Review the credit cost in the studio before running.
Catalog preview for Seedance 1 Pro Fast. Review your own result before publishing.
A starting point.
Explore a single action or a sequence with clear camera instructions.
Before you publish.
Check motion between frames, subject proportions and continuity through any cuts.
Review the quote before running. A failed generation releases its reserved credits. Download the results you want to keep; stored media is retained for 30 days.
Settings and model questionsCheck the available settings and guidance when preparing your input.
Inputs and settings
Text mode requires prompt; image mode requires prompt and image_url. Use camera_fixed for a locked camera.
Choose 2–12 seconds and 480p/720p/1080p. num_frames overrides duration when supplied, so use one timing approach deliberately; retain seed for comparison.
Inputs, all modes and APIModel IDs, current input limits and the API generation workflow.
Supported inputs
These fields come from the current studio form for bytedance/seedance/v1/pro/fast/text-to-video. Other modes may require different inputs.
| Input | Type | Requirement | Options and limits |
|---|---|---|---|
prompt | Text | Required | — |
aspect_ratio | Text | Optional | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 |
camera_fixed | On/off | Optional | — |
duration | Text | Optional | 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 |
enable_safety_checker | On/off | Optional | — |
num_frames | Whole number | Optional | ≥ 29 · ≤ 289 |
resolution | Text | Optional | 480p, 720p, 1080p |
seed | Whole number | Optional | — |
Check the full model schema for all options and cross-field rules. Request a quote for your selected settings before generating.
Other modes and their inputs
Open the operation you need and check its inputs. Settings from one mode do not automatically apply to another.
Image to videobytedance/seedance/v1/pro/fast/image-to-video
Supported inputs
These fields come from the current studio form for bytedance/seedance/v1/pro/fast/image-to-video. Other modes may require different inputs.
| Input | Type | Requirement | Options and limits |
|---|---|---|---|
image_url | Text | Required | — |
prompt | Text | Required | — |
aspect_ratio | Text | Optional | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 |
camera_fixed | On/off | Optional | — |
duration | Text | Optional | 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 |
enable_safety_checker | On/off | Optional | — |
num_frames | Whole number | Optional | ≥ 29 · ≤ 289 |
resolution | Text | Optional | 480p, 720p, 1080p |
seed | Whole number | Optional | — |
Check the full model schema for all options and cross-field rules. Request a quote for your selected settings before generating.
Use Seedance 1 Pro Fast through the API.
Start with this model ID for the endpoint featured on this page:
bytedance/seedance/v1/pro/fast/text-to-video
Input requirements belong to this model ID. Check a different mode’s schema separately when switching modes.
Available modes
- text-to-video ·
bytedance/seedance/v1/pro/fast/text-to-video - image-to-video ·
bytedance/seedance/v1/pro/fast/image-to-video
Check the current model schema for supported inputs and options. Other tasks may use different model IDs.
From quote to result.
Request a credit quote for your input and settings before submitting a generation. A sample output or the price of another model is not a quote for your request.
Follow the generation workflow, then poll the job for its status and result. The API and studio use the same balance.