seedinteger
Random seed for reproducible results. Omit or use -1 for a random seed.
Minimum: -1
Maximum: 4294967295
Seedance 2.0 Fast Image to Video
15% OFF
bytedance/seedance/2.0/fast/image-to-videoByteDance's most advanced image-to-video model in its fast tier delivering lower latency and cost without compromising on cinematic output, 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.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
The URL of the starting image for video generation.
This field is required.
Additional Settings More
Customize your input with more control.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
The URL of the ending image for 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. Allowed values: auto, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
Output aspect ratio. Omit to match the input image. Allowed values: 16:9, 9:16, 1:1, 4:3, 3:4.
The resolution of the video to generate. Allowed values: 480p, 720p.
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
{ "duration": 5, "image": "https://static.sandbase.ai/examples/924d2603-eef0-4578-8308-ada94fba3a13/input/4181e8c1-0c70-417b-b0dc-ac704e4e82ed.jpg", "prompt": "Ultra high-end commercial product shot, photorealistic, 8K, cinematic lighting, macro detail, shallow depth of field, premium advertising aesthetic, crystal-cut perfume bottle catching prismatic light beams, slow orbit, hard sunlight through venetian blinds, warm sandstone wall background, studio-grade color grading, immaculate reflections, subtle camera motion", "resolution": "720p" }
Seedance 2.0 Fast Image to Video
Seedance 2.0 Fast image-to-video: image becomes the first frame and the prompt directs motion, camera, and sound. Add end_image to set the final frame.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Up to 50,000 characters. |
image | image URL, required | — | First frame. JPEG, PNG, or WebP URL. |
end_image | image URL | — | Optional last frame. |
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 | — | Output frame shape. |
resolution | 480p / 720p | 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
You pay for output seconds: $0.10 at 480p, $0.20 at 720p. Audio is included. With duration: "auto" the quote assumes 15 seconds and the final charge uses the generated length.
| Output | 480p | 720p |
|---|---|---|
| 4s | $0.40 | $0.80 |
| 5s (default) | $0.50 | $1.00 |
| 10s | $1.00 | $2.00 |
| 15s | $1.50 | $3.00 |
Failed runs are not charged.
Prompting
- Describe what moves and how the camera behaves, not what is already visible.
- With two frames, describe the transition between them.
Limits
- Clips are 4–15 seconds.
Also on SandBase
Other Seedance 2.0 Fast endpoints and tiers: bytedance/seedance/2.0/fast/text-to-video, bytedance/seedance/2.0/fast/reference-to-video, bytedance/seedance/2.5/image-to-video, bytedance/seedance/2.0/image-to-video, bytedance/seedance/2.0/mini/image-to-video.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "bytedance/seedance/2.0/fast/image-to-video",
"image": "https://p9-arcosite.byteimg.com/tos-cn-i-goo7wpa0wc/f8fc1008f23a4908b7c897e8b7eb87df~tplv-goo7wpa0wc-image.image",
"prompt": "Create a 360-degree orbiting camera shot based on this photo.",
"duration": 5,
"resolution": "720p",
"generate_audio": true
}
SANDBASE_JSON
)
run_id=$(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
imagestringrequired
The URL of the starting image for video generation.
promptstringrequired
The text prompt to generate a video from.
Default: "Create a 360-degree orbiting camera shot based on this photo."
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.
Default: 5
Possible values: "auto", 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
end_imagestring
The URL of the ending image for video generation.
resolutionstring
The resolution of the video to generate.
Default: "720p"
Possible values: "480p", "720p"
aspect_ratiostring
Output aspect ratio. Omit to match the input image.
Possible values: "16:9", "9:16", "1:1", "4:3", "3:4"
generate_audioboolean
Generate a synchronized audio track. Pricing is the same either way.
Default: true
{
"model": "bytedance/seedance/2.0/fast/image-to-video",
"image": "https://p9-arcosite.byteimg.com/tos-cn-i-goo7wpa0wc/f8fc1008f23a4908b7c897e8b7eb87df~tplv-goo7wpa0wc-image.image",
"prompt": "Create a 360-degree orbiting camera shot based on this photo.",
"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/5eb436344921ceaf30ad.jpg",
"source": "Self organization completed prediction",
"source_url": "https://www.sandbase.ai/model/bytedance/seedance/2.0/fast/image-to-video",
"url": "https://static.sandbase.ai/examples/924d2603-eef0-4578-8308-ada94fba3a13/output/c28e1241-8d7d-4de1-9fe8-53c48b480933.mp4"
}
]