Create reference-guided videos quickly with Seedance 2.0 Fast API. Use realistic human support, built-in sound, flexible ratios, and stable output.
ByteDance Seedance V2.0 Fast Reference-to-Video API delivers cost-effective, high-speed AI video generation for developers and creative teams requiring source-video guidance. This lightning-fast reference-to-video API integration enables you to generate professional video clips at 480p and 720p resolutions using a reference video plus prompt guidance. Built on ByteDance's optimized video synthesis architecture, the Seedance V2.0 Fast model provides rapid source-guided generation with optional camera control and audio input support for high-volume production workflows on Best Image AI.
Note Please ensure your reference video, optional audio, and prompts comply with ByteDance's content safety guidelines. If an error occurs, review your content for restricted material, adjust it, and try again.
Seedance V2.0 Fast vs. Seedance V2.0 Standard Reference-to-Video Seedance V2.0 Standard Reference-to-Video delivers maximum quality for professional production. Seedance V2.0 Fast Reference-to-Video API prioritizes speed and cost-efficiency, generating reference-guided videos at accelerated speeds—perfect for high-volume workflows and rapid iteration.
Seedance V2.0 Fast vs. Seedance V2.0 Fast Text-to-Video Seedance V2.0 Fast Text-to-Video generates videos from text descriptions alone. Seedance V2.0 Fast Reference-to-Video API adds reference video input for stronger source-guided motion and visual continuity.
Seedance V2.0 Fast vs. Kling 3.0 Reference Generation Kling 3.0 offers reference-based generation with strong human motion synthesis. Seedance V2.0 Fast Reference-to-Video API differentiates through faster generation speeds, broader aspect ratio support (6 formats including 21:9 ultrawide), and extended 15-second duration—making it efficient for high-volume reference-guided production.
Seedance V2.0 Fast vs. Runway Gen-3 Custom Mode Runway Gen-3 Custom Mode provides subject-driven generation with creative controls. Seedance V2.0 Fast Reference-to-Video API offers faster generation speeds, 6 aspect ratio formats, and extended duration up to 15 seconds—delivering efficient reference-guided video production for high-throughput workflows.
Seedance V2.0 Fast vs. Pika Reference Generation Pika offers reference-based stylization with a user-friendly interface. Seedance V2.0 Fast Reference-to-Video API provides programmatic access, faster generation speeds, 6 aspect ratio formats, extended 15-second duration, and predictable pricing—making it superior for developers requiring scalable, rapid, identity-consistent video generation.
// Step 1: Submit generation request
const response = await fetch('https://api.flaq.ai/api/v1/video/task', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': 'Bearer YOUR_API_KEY'
},
body: JSON.stringify({
model_name: 'seedance-v2.0-fast-reference-to-video',
prompt: 'Cinematic product reveal with smooth motion matching the reference style',
resolution: '720p',
duration: 8,
aspect_ratio: '16:9',
sound: true,
camera_fixed: false,
audio_url: 'https://example.com/reference-audio.mp3',
video_url: 'https://example.com/reference-video.mp4'
})
});
const { data } = await response.json();
const taskId = data.task_id;
// Step 2: Poll for results
const taskId = data.task_id;
const pollResult = async (taskId) => {
const res = await fetch(`https://api.flaq.ai/api/v1/video/${taskId}`, {
headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
return res.json();
};
while (true) {
const pollResultData = await pollResult(taskId);
const status = pollResultData.data.task_status;
if (status === 'succeed') {
console.log(pollResultData.data.task_result.videos[].);
;
}
(status === ) {
.(pollResultData..);
;
}
( (resolve, ));
}
# Step 1: Submit generation request
import requests
response = requests.post(
'https://api.flaq.ai/api/v1/video/task',
headers={
'Content-Type': 'application/json',
'Authorization': 'Bearer YOUR_API_KEY'
},
json={
'model_name': 'seedance-v2.0-fast-reference-to-video',
'prompt': 'Cinematic product reveal with smooth motion matching the reference style',
'resolution': '720p',
'duration': 8,
'aspect_ratio': '16:9',
'sound': True,
'camera_fixed': False,
'audio_url': 'https://example.com/reference-audio.mp3',
'video_url': 'https://example.com/reference-video.mp4',
}
)
result = response.json()
task_id = result['data'][]
# Step 1: Submit generation request
curl -X POST https://api.flaq.ai/api/v1/video/task \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model_name": "seedance-v2.0-fast-reference-to-video",
"prompt": "Cinematic product reveal with smooth motion matching the reference style",
"resolution": "720p",
"duration": 8,
"aspect_ratio": "16:9",
"sound": true,
"camera_fixed": false,
"audio_url": "https://example.com/reference-audio.mp3",
"video_url": "https://example.com/reference-video.mp4"
}'
# Step 2: Poll for results
# Replace {task_id} with the task_id returned from the submit response
curl -X GET "https://api.flaq.ai/api/v1/video/{task_id}" \
-H "Authorization: Bearer YOUR_API_KEY"
# Step 2: Poll for results
task_id = response.json()['data']['task_id']
poll_url = f"https://api.flaq.ai/api/v1/video/{task_id}"
while True:
poll_result = requests.get(poll_url, headers={'Authorization': 'Bearer YOUR_API_KEY'}).json()
status = poll_result['data']['task_status']
if status == 'succeed':
print(poll_result['data']['task_result']['videos'][0]['url'])
break
if status == 'failed':
print(poll_result['data']['task_status_msg'])
break
time.sleep(10)