seedinteger
Random seed for reproducible results. Omit or use -1 for a random seed.
Minimum: -1
Maximum: 4294967295
Seedance 2.0 Reference to Video
20% OFF
bytedance/seedance/2.0/reference-to-videoByteDance's most advanced reference-to-video model generating cinematic video guided by reference content, with native audio, multi-shot editing, and director-level camera control for professional-grade video creation.
Try the model
Playground
Input
The text prompt to generate a video from.
Additional Settings More
Customize your input with more control.
PNG, JPEG, WebP, or GIF · 20 MiB maximum each
The URLs of reference images to guide video generation.
The URLs of reference videos to guide video generation. Up to 3 MP4 or MOV files, 2-15 seconds combined duration, under 50 MB total.
The URLs of reference audio files to guide video generation.
Output duration in seconds (4-15), or `auto` to let the model pick a length from the prompt and inputs. `auto` is pre-authorized at 15 seconds and billed on the actual output length. When a reference video is edited or extended, use `auto` with `adaptive` aspect ratio so the output follows the source clip. Allowed values: auto, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
Output aspect ratio. Omit to let the model choose from the prompt and reference inputs. Allowed values: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9.
The resolution of the video to generate. Allowed values: 480p, 720p, 1080p, 4k.
Generate a synchronized audio track. Pricing is the same either way.
Random seed for reproducible results. Omit or use -1 for a random seed. Range: -1 to 4294967295.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "prompt": "Use Image1 as the visual reference and Video1 as the motion reference. Create a peaceful cinematic shoreline scene with rolling ocean waves at golden hour, soft foam, natural water movement, and no people." }
Seedance 2.0 Reference to Video
Seedance 2.0 reference-to-video: combine reference images, up to 3 reference videos, and reference audio to lock a character, set, motion, or voice in a new clip.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Up to 50,000 characters. |
images | image URL[] | — | Reference images, Image 1, Image 2, … |
videos | video URL[] (≤3) | — | Reference clips (up to 3), Video 1, Video 2, … |
audios | audio URL[] | — | Reference audio, Audio 1, Audio 2, … |
duration | auto / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 | 5 | Output length in seconds (4–15), or auto to let the model choose. |
aspect_ratio | 16:9 / 9:16 / 1:1 / 4:3 / 3:4 / 21:9 | — | Output frame shape. |
resolution | 480p / 720p / 1080p / 4k | 720p | Sets the per-second rate. |
generate_audio | boolean | true | Native dialogue, music, and effects. Same price on or off. |
seed | integer -1–4294967295 | random | Fix it to compare prompt changes; -1 is random. |
Billing
Without reference videos you pay for output seconds: $0.12 at 480p, $0.24 at 720p, $0.60 at 1080p, $1.20 at 4k. With reference videos, the input video seconds (at least 2) are added to the output length and billed at a lower rate: $0.075 at 480p, $0.15 at 720p, $0.375 at 1080p, $0.75 at 4k. With duration: "auto" the quote assumes 15 seconds and the final charge uses the generated length.
| Output | 480p | 720p | 1080p | 4k |
|---|---|---|---|---|
| 5s, images only | $0.60 | $1.20 | $3.00 | $6.00 |
| 10s, images only | $1.20 | $2.40 | $6.00 | $12.00 |
| 5s + 5s reference video | $0.75 | $1.50 | $3.75 | $7.50 |
| 10s + 10s reference video | $1.50 | $3.00 | $7.50 | $15.00 |
Failed runs are not charged.
Prompting
- Give each reference a role: “Image 1 is the dancer, Video 1 sets the choreography, Audio 1 is the music”.
- Numbering follows array order within each type.
Limits
- Reference video seconds count toward billing (minimum 2, up to 15).
Also on SandBase
Other Seedance 2.0 endpoints and tiers: bytedance/seedance/2.0/text-to-video, bytedance/seedance/2.0/image-to-video, bytedance/seedance/2.5/reference-to-video, bytedance/seedance/2.0/fast/reference-to-video, bytedance/seedance/2.0/mini/reference-to-video.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "bytedance/seedance/2.0/reference-to-video",
"images": [
"https://static.sandbase.ai/examples/bytedance/seedance/2.0/reference-to-video/input_image_safe_ocean_0.jpg"
],
"prompt": "Use Image1 as the visual reference and Video1 as the motion reference. Create a peaceful cinematic shoreline scene with rolling ocean waves at golden hour, soft foam, natural water movement, and no people.",
"videos": [
"https://static.sandbase.ai/examples/pixverse/sound-effects/input_video_0.mp4"
],
"duration": 5,
"resolution": "720p",
"generate_audio": true
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
status=$(printf '%s' "$result" | jq -r .status)
case "$status" in completed|failed|timeout) break ;; esac
sleep 2
result=$(curl --fail-with-body --silent \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
"https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
audiosarray
The URLs of reference audio files to guide video generation.
imagesarray
The URLs of reference images to guide video generation.
promptstringrequired
The text prompt to generate a video from.
Default: "Use Image1 as the visual reference and Video1 as the motion reference. Create a peaceful cinematic shoreline scene with rolling ocean waves at golden hour, soft foam, natural water movement, and no people."
videosarray
The URLs of reference videos to guide video generation. Up to 3 MP4 or MOV files, 2-15 seconds combined duration, under 50 MB total.
durationvalue
Output duration in seconds (4-15), or `auto` to let the model pick a length from the prompt and inputs. `auto` is pre-authorized at 15 seconds and billed on the actual output length. When a reference video is edited or extended, use `auto` with `adaptive` aspect ratio so the output follows the source clip.
Default: 5
Possible values: "auto", 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
resolutionstring
The resolution of the video to generate.
Default: "720p"
Possible values: "480p", "720p", "1080p", "4k"
aspect_ratiostring
Output aspect ratio. Omit to let the model choose from the prompt and reference inputs.
Possible values: "16:9", "9:16", "1:1", "4:3", "3:4", "21:9"
generate_audioboolean
Generate a synchronized audio track. Pricing is the same either way.
Default: true
{
"model": "bytedance/seedance/2.0/reference-to-video",
"images": [
"https://static.sandbase.ai/examples/bytedance/seedance/2.0/reference-to-video/input_image_safe_ocean_0.jpg"
],
"prompt": "Use Image1 as the visual reference and Video1 as the motion reference. Create a peaceful cinematic shoreline scene with rolling ocean waves at golden hour, soft foam, natural water movement, and no people.",
"videos": [
"https://static.sandbase.ai/examples/pixverse/sound-effects/input_video_0.mp4"
],
"duration": 5,
"resolution": "720p",
"generate_audio": true
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"poster": "https://static.sandbase.ai/examples/posters/e57c708511358a3eebeb.jpg",
"source": "ByteDance/Volcengine schema mirror",
"source_url": "https://docs.volcengine.com/docs/ark/seedance-2-0",
"url": "https://static.sandbase.ai/examples/1520530e-6cbd-4bc5-acb8-48352e43608f/output/cbf70b14-17be-4363-a58f-7c2a78b287dd.mp4"
}
]