Seedance 2.0 Fast (Image-to-Video) generates cinematic videos from reference images and text prompts with native audio-visual synchronization, director-level control, and exceptional motion stability — optimized for faster generation at lower cost. Built on Seed's unified multimodal architecture.
Idle
$0.5per run·~20 / $10
ExamplesView all
He glances left and right confirming he's alone, then absolutely loses it — full arm waves, footwork, lip-syncing to something — then the subway doors open and a family walks in. He freezes instantly, straightens his tie, stares at the ceiling, completely still.
The blizzard intensifies — snow driving nearly horizontal across the frame. The wolf's fur ripples violently in waves from nose to tail. It doesn't move. Its eyes open fully for a moment, pale amber cutting through the white chaos, scanning something far below the ridge. Its nostrils flare — a deep inhale, held — then released in a massive white cloud that shreds apart in the wind. One ear swivels back, then forward again. It raises its head slightly and opens its jaws — but makes no sound we can hear over the storm. Camera holds at distance, shaking faintly in the gale.
The bear delicately lifts the tiny espresso cup to its mouth with two claws, drinks it in one gulp, then lets out a massive roar — the pigeons explode into the air, but the other patrons don't even look up from their newspapers
The nail technician holds up a glitter nail for his approval. He stares at it for a long beat, completely expressionless — then gives one slow, satisfied nod. The tiniest smile flickers at the corner of his mouth before he suppresses it.
Related Models
README
Seedance 2.0 Fast Image-to-Video
Seedance 2.0 Fast is the speed-optimized version of Seed's latest video generation model. The Image-to-Video mode generates cinematic videos from reference images and text prompts — faster and at 33% lower cost than the standard version, preserving the input image's subject and composition while adding expressive motion with native audio.
Key Features
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Speed-optimized generation Faster processing for quick turnaround, perfect for iteration and prototyping.
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33% lower cost $0.80 per 5 seconds vs $1.20 for the standard version.
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Image-faithful generation Preserves the reference image's subject identity, composition, and style.
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Multi-image reference support Guide generation with up to 4 reference images.
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Native audio-visual synchronization Generates video with synchronized audio in a single pass.
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Director-level control Camera movement, lighting, and character performance controlled through prompts.
Parameters
| Parameter | Required | Description |
|---|---|---|
| prompt | Yes | Detailed description of the cinematic scene |
| image | Yes | Start image URL to guide the video generation |
| last_image | No | Last frame image URL for video continuation |
| duration | No | Video length in seconds: 4-15 (default: 5) |
| aspect_ratio | No | Output format: 16:9, 9:16, 4:3, 3:4, 1:1, 21:9 (default: adaptive) |
| resolution | No | Output resolution: 480p, 720p (default), or 1080p |
How to Use
- Upload a start image — provide an image to guide the video generation.
- Write your prompt — describe the scene with cinematic detail.
- Set duration — choose any duration from 4 to 15 seconds.
- Run — submit and download your video.
Pricing
| Resolution | Duration | Cost |
|---|---|---|
| 480p | 5 s | $0.50 |
| 480p | 10 s | $1.00 |
| 480p | 15 s | $1.50 |
| 720p | 5 s | $1.00 |
| 720p | 10 s | $2.00 |
| 720p | 15 s | $3.00 |
| 1080p | 5 s | $2.50 |
| 1080p | 10 s | $5.00 |
| 1080p | 15 s | $7.50 |
Billing Rules
- Base rate (480p): $0.50 per 5 seconds
- 720p: 2x the 480p price
- 1080p: 5x the 480p price (2.5x the 720p price)
- Duration range: 4-15 seconds (continuous)
Best Use Cases
- Rapid Prototyping — Quickly iterate on image-to-video concepts.
- High-Volume Production — Cost-effective generation for large content libraries.
- Product Animation — Fast turnaround on product shot animations.
- A/B Testing — Generate multiple variations from the same reference image.
Pro Tips
- Use Fast for iteration, switch to standard Seedance 2.0 for final quality.
- Upload high-quality reference images for best subject preservation.
- Start with 5s to iterate, then extend once the look is right.
Notes
- Native audio generation included.
- Up to 4 reference images can be uploaded.
- Duration range: 4-15 seconds (continuous).
- Aspect ratio follows the input image composition.
Related Models
- Seedance 2.0 Image-to-Video — Standard version with highest quality.
- Seedance 2.0 Fast Text-to-Video — Fast text-guided video generation.
- Seedance 2.0 Text-to-Video — Standard text-guided video generation.
Seedance 2.0 Fast Image To Video API — Quick start
Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/bytedance/seedance-2.0-fast/image-to-video with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Seedance 2.0 Fast Image To Video below.
HTTP example
# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/bytedance/seedance-2.0-fast/image-to-video" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $WAVESPEED_API_KEY" \
-d '{
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"image": "https://example.com/your-input.jpg",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"enable_web_search": false,
"generate_audio": true
}'
# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
-H "Authorization: Bearer $WAVESPEED_API_KEY"
# When status is "completed", read the output from data.outputs[0].Node.js example
// npm install wavespeed
const WaveSpeed = require('wavespeed');
const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env
const result = await client.run("bytedance/seedance-2.0-fast/image-to-video", {
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"image": "https://example.com/your-input.jpg",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"enable_web_search": false,
"generate_audio": true
});
console.log(result.outputs[0]); // → URL of the generated outputPython example
# pip install wavespeed
import wavespeed
output = wavespeed.run(
"bytedance/seedance-2.0-fast/image-to-video",
{
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"image": "https://example.com/your-input.jpg",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"enable_web_search": false,
"generate_audio": true
}
)
print(output["outputs"][0]) # → URL of the generated outputSeedance 2.0 Fast Image To Video API — Frequently asked questions
What is the Seedance 2.0 Fast Image To Video API?
Seedance 2.0 Fast Image To Video is a ByteDance model for video generation from images, exposed as a REST API on WaveSpeedAI. Seedance 2.0 Fast (Image-to-Video) generates cinematic videos from reference images and text prompts with native audio-visual synchronization, director-level control, and exceptional motion stability — optimized for faster generation at lower cost. Built on Seed's unified multimodal architecture. You can call it programmatically or try it from the playground above.
How do I call the Seedance 2.0 Fast Image To Video API?
POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/bytedance/bytedance-seedance-2.0-fast-image-to-video.
How much does Seedance 2.0 Fast Image To Video cost per run?
Seedance 2.0 Fast Image To Video starts at $0.50 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.
What inputs does Seedance 2.0 Fast Image To Video accept?
Key inputs: `prompt`, `image`, `aspect_ratio`, `resolution`, `duration`, `enable_web_search`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/bytedance/bytedance-seedance-2.0-fast-image-to-video.
How do I get started with the Seedance 2.0 Fast Image To Video API?
Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.
Can I use Seedance 2.0 Fast Image To Video outputs commercially?
Commercial usage rights depend on the model's license, set by its provider (ByteDance). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.