Video

Seedance 1.0 Pro Fast API

The Seedance 1.0 Pro Fast API on APIMart runs ByteDance's seedance-1-0-pro-fast model, the faster tier of Seedance 1.0 Pro for previews and iteration. Generate 2–12 second clips from text or a first-frame image at 480p, 720p or 1080p.

Fast TierText to VideoFirst-Frame Image to VideoUp to 1080p

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Service Highlights

Official Discounts
Pay-as-you-go
Fast & Low Latency

Input

Model

Prompt

Camera Fixed

Duration

Aspect Ratio

Seed

Resolution

Image with Roles

First Frame

Content Moderation

Output

Video link valid for 72 hours

Seedance 1.0 Pro Fast API Pricing

Transparent pricing with no hidden fees. Pay only for what you use.

Variant	Tier	GoldCurrent price	Platinum	Diamond	Official	Your savings
`seedance-1-0-pro-fast`	480P	0.088Credits(~$0.0088)/sec	0.0836Credits(~$0.0084)/sec	0.0792Credits(~$0.0079)/sec	0.11Credits(~$0.011)/sec	20%
	720P	0.2Credits(~$0.02)/sec	0.19Credits(~$0.019)/sec	0.18Credits(~$0.018)/sec	0.25Credits(~$0.025)/sec	20%
	1080P	0.416Credits(~$0.0416)/sec	0.3952Credits(~$0.0395)/sec	0.3744Credits(~$0.0374)/sec	0.52Credits(~$0.052)/sec	20%

* Actual costs are subject to final output.

ByteDance Seedance 1.0 Pro Fast API for Quick Previews

The Seedance 1.0 Pro Fast API is the faster tier of ByteDance Seedance 1.0 Pro, built for previews and iteration. Generate 2–12 second clips from text prompts or a first-frame image at up to 1080p.

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50K+

Active Users

99.9%

Uptime

Faster

—

Cost Savings

Key Features of the ByteDance Seedance 1.0 Pro Fast API

The faster Seedance 1.0 Pro tier through one APIMart endpoint

Faster Generation with Seedance 1.0 Pro Fast

seedance-1-0-pro-fast is the fast version of Seedance 1.0 Pro, suited to previews and quick iteration.

Seedance 1.0 Pro Fast Text to Video API

Describe the scene, action and style, and the Seedance 1.0 Pro Fast API returns a 2–12 second clip.

First-Frame Image to Video in Seedance Pro Fast

Pass a first_frame image through image_with_roles to animate a still. Last-frame input is not supported on the Fast tier.

480p to 1080p Output with the Seedance 1.0 Pro Fast API

Choose 480p, 720p or 1080p; the default is 1080p.

Six Aspect Ratios in ByteDance Seedance 1.0 Pro Fast

Render in 16:9, 9:16, 1:1, 4:3, 3:4 or 21:9 at every resolution.

2–12 Second Clips with the Seedance 1.0 Pro Fast Model

Set duration from 2 to 12 seconds; the default is 5 seconds.

Same Parameters as the Seedance 1.0 Pro Quality Tier

The Fast tier accepts the same request as seedance-1-0-pro-quality, so a tested prompt moves to the quality tier by changing the model field.

Reproducible Results with Seedance 1.0 Pro Fast Seeds

Pass a seed to keep results consistent while you compare prompt variations.

What You Can Build with the Seedance 1.0 Pro Fast API

Workflows where quick Seedance 1.0 Pro previews help most

Prompt Testing with Seedance 1.0 Pro Fast

Try several prompt variations on the Fast tier before rendering the final version with seedance-1-0-pro-quality.

Ad Concept Previews with the Seedance 1.0 Pro Fast API

Generate quick ad drafts to review ideas with your team.

E-commerce Product Clips with ByteDance Seedance 1.0 Pro Fast

Animate product photos from a first frame for catalog previews.

Storyboard Previews with Seedance Pro Fast

Turn storyboard frames into moving previews to check timing and camera moves.

Social Video Drafts with the Seedance 1.0 Pro Fast Model

Draft vertical 9:16 clips for TikTok, Reels and YouTube Shorts.

Education & Training

Create short explainer clips for learning content.

How to Get a Seedance 1.0 Pro Fast API Key and Start Building

Go from sign-up to your first Seedance 1.0 Pro Fast video in three steps

Sign Up & Top Up

Start by creating your free APIMart account to access Seedance 1.0 Pro Fast. Top up your account balance to start using. The balance can be used for all models on the platform, including Seedance 1.0 Pro Fast.

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Get Your Seedance 1.0 Pro Fast API Key

Create an API key in the dashboard and use seedance-1-0-pro-fast as the model in your Seedance 1.0 Pro Fast API requests.

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Make Your First Seedance 1.0 Pro Fast API Call

Submit a prompt and settings, read the task_id, poll the task status and download the video when it completes.

Seedance 1.0 Pro Fast API Example: Text to Video

Call ByteDance Seedance 1.0 Pro Fast on APIMart with one POST request. Generation is asynchronous: submit a task, then poll the task endpoint for the video.

1
Authenticate Seedance 1.0 Pro Fast API requests
Save the key you created above in the APIMART_API_KEY environment variable and send it as Authorization: Bearer <key> on every Seedance 1.0 Pro Fast API request.
2
Submit a Seedance 1.0 Pro Fast task
POST /v1/videos/generations with model seedance-1-0-pro-fast, your prompt, aspect_ratio, resolution and duration. Add image_with_roles with a first_frame image for image to video. The response contains the task ID in data[0].task_id.
3
Get the Seedance 1.0 Pro Fast result
Poll GET /v1/tasks/{task_id} until status is completed, then read the generated video from data.result.videos. If the task fails, the reason is returned in data.error.message.
See the Seedance 1.0 Pro API reference for every parameter and response field.

POST /v1/videos/generations

curl -X POST https://api.apimart.ai/v1/videos/generations \
  -H "Authorization: Bearer $APIMART_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-1-0-pro-fast",
    "prompt": "A cinematic tracking shot of a red vintage car driving along a coastal road at sunset, waves crashing below, warm golden light",
    "aspect_ratio": "16:9",
    "resolution": "720p",
    "duration": 5
  }'

import os
import time
import requests

API_BASE = "https://api.apimart.ai"
headers = {"Authorization": f"Bearer {os.environ['APIMART_API_KEY']}"}

# 1. Submit the generation task
payload = {
  "model": "seedance-1-0-pro-fast",
  "prompt": "A cinematic tracking shot of a red vintage car driving along a coastal road at sunset, waves crashing below, warm golden light",
  "aspect_ratio": "16:9",
  "resolution": "720p",
  "duration": 5
}
resp = requests.post(f"{API_BASE}/v1/videos/generations", headers=headers, json=payload, timeout=60)
resp.raise_for_status()
task_id = resp.json()["data"][0]["task_id"]

# 2. Poll the task until it finishes
for _ in range(200):
    task_resp = requests.get(f"{API_BASE}/v1/tasks/{task_id}", headers=headers, timeout=30)
    task_resp.raise_for_status()
    task = task_resp.json()["data"]
    if task["status"] == "completed":
        print(task["result"]["videos"][0]["url"][0])
        break
    if task["status"] == "failed":
        raise RuntimeError(task.get("error", {}).get("message", "generation failed"))
    time.sleep(10)
else:
    raise TimeoutError(f"task {task_id} did not finish in time")

TASK_ID="task_xxx"  # replace with the task_id returned by the POST request
curl "https://api.apimart.ai/v1/tasks/$TASK_ID" \
  -H "Authorization: Bearer $APIMART_API_KEY"

Seedance 1.0 Pro Fast API Parameters

Parameter	Type	Required	Default	Description
`model`	string	Required	Default: seedance-1-0-pro-fast	Use seedance-1-0-pro-fast for the Fast tier, or seedance-1-0-pro-quality for the quality tier.
`prompt`	string	Required	Default: —	Seedance 1.0 Pro Fast API video description. Describe the scene, action and style in detail.
`duration`	integer	Optional	Default: 5	Seedance 1.0 Pro Fast API clip length from 2 to 12 seconds.
`aspect_ratio`	string	Optional	Default: 16:9	16:9, 9:16, 1:1, 4:3, 3:4 or 21:9.
`resolution`	string	Optional	Default: 1080p	480p, 720p or 1080p.
`seed`	integer	Optional	Default: —	Random seed from -1 to 2^32-1. Reuse a seed with the same request to get similar results.
`image_with_roles`	array	Optional	Default: —	First-frame image with role first_frame. last_frame is not supported on seedance-1-0-pro-fast.
`nsfw_check`	boolean	Optional	Default: false	Check the prompt and images before submission.

User Reviews

What our users say. These are original Seedance 1.0 Pro series reviews and may refer to Fast or Quality.

“The dual-mode switching is fantastic. We can use Seedance 1.0 Pro Turbo Mode to test ideas in seconds, then use Quality Mode to generate final marketing videos. Huge efficiency boost.”

Marcus Chen

Creative Director

“Seedance 1.0 Pro Fast's motion consistency is impressive. Character movements are fluid and natural, without the jitter found in other models, making it perfect for our e-commerce display videos.”

Sarah Martinez

Marketing Manager

“The API documentation is very detailed, and integration with Seedance 1.0 Pro Fast went smoothly. We integrated it into our internal CMS, allowing the editorial team to generate accompanying videos directly.”

David Kim

Lead Developer

“The Seedance 1.0 Pro Fast Image-to-Video feature preserves the style and details of the original image while bringing it to life. It's the perfect choice for our brand visual dynamism projects.”

Rachel Foster

Design Studio Owner

“Whether it's rapid iteration or pursuing ultimate image quality, Seedance 1.0 Pro Fast delivers. Extremely cost-effective, significantly reducing our trial-and-error costs.”

Jennifer Wu

Video Producer

“We use Seedance 1.0 Pro Fast extensively in educational courseware to transform dry concepts into vivid short videos. Student engagement has noticeably improved.”

Dr. James Patterson

E-learning Platform Founder

Seedance API Model Family

Compare every Seedance video model on APIMart. One API key calls all of them; each model page shows its live pricing.

Model	Best for	Resolution	Duration
Seedance 2.5 API	Clips up to 30 s with up to 50 image, video and audio references, plus video editing and extension	480P / 720P / 1080P	4–30 s or auto
Seedance 2.0 API	Up to 4K, the highest resolution in the family, with image, video and audio references	480P / 720P / 1080P / 4K	4–15 s
Seedance 2.0 Fast API	Fast variant of Seedance 2.0 with the same image, video and audio references	480P / 720P	4–15 s
Seedance 2.0 Mini API	Mini variant of Seedance 2.0 with the same image, video and audio references	480P / 720P	4–15 s
Seedance 1.5 Pro API	Text-to-video and first/last-frame image-to-video, with optional audio	480P / 720P / 1080P	4–12 s
Seedance 1.0 Pro Quality API	Text-to-video and first/last-frame image-to-video	480P / 720P / 1080P	2–12 s
Seedance 1.0 Pro Fast APIThis page	Text-to-video and first-frame image-to-video (no last frame)	480P / 720P / 1080P	2–12 s

Seedance 1.0 Pro Fast API FAQ

Answers about Seedance 1.0 Pro Fast API capabilities, parameters and access

What is Seedance 1.0 Pro Fast?

Seedance 1.0 Pro Fast is the faster tier of ByteDance Seedance 1.0 Pro, also written as Seedance 1.0 Fast, Seedance V1 Pro Fast or Seedance Pro Fast. It suits previews and iteration. On APIMart, the Seedance 1.0 Pro Fast API uses the model ID seedance-1-0-pro-fast.

Seedance 1.0 Pro Fast vs Seedance 1.0 Pro: what's the difference?

Both models support text-to-video and first-frame image-to-video, with 480p, 720p and 1080p output. Quality also supports a last-frame image; Fast does not. Use seedance-1-0-pro-fast for this version and see its live per-second pricing on this page.

When was Seedance 1.0 Pro Fast released?

ByteDance released Seedance 1.0 Pro Fast in October 2025 as a faster tier of Seedance 1.0 Pro. On APIMart, call it with the model ID seedance-1-0-pro-fast.

How do I use the Seedance 1.0 Pro Fast API?

Send POST /v1/videos/generations with model seedance-1-0-pro-fast and your prompt. The Seedance 1.0 Pro Fast API runs as an asynchronous task: read the task ID from data[0].task_id, poll GET /v1/tasks/{task_id} until the status is completed, then read the video from data.result.videos.

What parameters does the Seedance 1.0 Pro Fast API support?

In the Seedance 1.0 Pro Fast API, model and prompt are required. Optional parameters are duration (2–12 seconds, default 5), aspect_ratio (default 16:9), resolution (480p, 720p or 1080p, default 1080p), seed, image_with_roles with a first_frame image, and nsfw_check.

Does the Seedance 1.0 Pro Fast API support image to video?

Yes. Add an image_with_roles entry with role first_frame to animate a still image. The Fast tier does not support a last_frame image; use seedance-1-0-pro-quality when you need both first and last frames.

What video resolutions and aspect ratios does Seedance 1.0 Pro Fast support?

Seedance 1.0 Pro Fast outputs 480p, 720p or 1080p, with 1080p as the default, in six aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4 and 21:9. Clips run 2–12 seconds.

How do I write prompts for Seedance 1.0 Pro Fast?

Describe the scene, the action and the visual style in detail, and add camera moves you want. Change one element at a time between Fast runs so you can see the effect of each change, then render the chosen prompt on the quality tier.

Can Seedance 1.0 Pro Fast videos be used commercially?

Yes, you own full commercial rights to videos generated by Seedance 1.0 Pro Fast, free for use in advertising, marketing, and other commercial scenarios.

How much does the Seedance 1.0 Pro Fast API cost?

The ByteDance Seedance 1.0 Pro Fast API is billed per second of generated video. The pricing table on this page lists every specification, and the prices shown are Gold member rates (20% off). Platinum and Diamond members save even more, up to 28%, and you only pay for successful requests.

How do I get a Seedance 1.0 Pro Fast API key?

Sign up for APIMart, open the API Keys page in your dashboard, and create a key. The same key works for the ByteDance Seedance 1.0 Pro Fast API and every other model on the platform, with pay-as-you-go billing and no subscription.

Is the Seedance 1.0 Pro Fast API free?

There is no free tier. The Seedance 1.0 Pro Fast API is pay-as-you-go: you only pay for successful requests, and every price is 20% off.

Related Models

Explore more models in the same category.

View All Models →

Seedance 1.0 Pro Fast API FAQ

Answers about Seedance 1.0 Pro Fast API capabilities, parameters and access

What is Seedance 1.0 Pro Fast?

Seedance 1.0 Pro Fast vs Seedance 1.0 Pro: what's the difference?

When was Seedance 1.0 Pro Fast released?

ByteDance released Seedance 1.0 Pro Fast in October 2025 as a faster tier of Seedance 1.0 Pro. On APIMart, call it with the model ID seedance-1-0-pro-fast.

How do I use the Seedance 1.0 Pro Fast API?

What parameters does the Seedance 1.0 Pro Fast API support?

Does the Seedance 1.0 Pro Fast API support image to video?

What video resolutions and aspect ratios does Seedance 1.0 Pro Fast support?

Seedance 1.0 Pro Fast outputs 480p, 720p or 1080p, with 1080p as the default, in six aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4 and 21:9. Clips run 2–12 seconds.

How do I write prompts for Seedance 1.0 Pro Fast?

Can Seedance 1.0 Pro Fast videos be used commercially?

Yes, you own full commercial rights to videos generated by Seedance 1.0 Pro Fast, free for use in advertising, marketing, and other commercial scenarios.

How much does the Seedance 1.0 Pro Fast API cost?

How do I get a Seedance 1.0 Pro Fast API key?

Is the Seedance 1.0 Pro Fast API free?

There is no free tier. The Seedance 1.0 Pro Fast API is pay-as-you-go: you only pay for successful requests, and every price is 20% off.

Seedance 1.0 Pro Fast API

Seedance 1.0 Pro Fast API Pricing

ByteDance Seedance 1.0 Pro Fast API for Quick Previews

Key Features of the ByteDance Seedance 1.0 Pro Fast API

What You Can Build with the Seedance 1.0 Pro Fast API

How to Get a Seedance 1.0 Pro Fast API Key and Start Building

Sign Up & Top Up

Get Your Seedance 1.0 Pro Fast API Key

Make Your First Seedance 1.0 Pro Fast API Call

Seedance 1.0 Pro Fast API Example: Text to Video

Authenticate Seedance 1.0 Pro Fast API requests

Submit a Seedance 1.0 Pro Fast task

Get the Seedance 1.0 Pro Fast result

Seedance 1.0 Pro Fast API Parameters

User Reviews

Seedance API Model Family

Seedance 1.0 Pro Fast API FAQ

What is Seedance 1.0 Pro Fast?

Seedance 1.0 Pro Fast vs Seedance 1.0 Pro: what's the difference?

When was Seedance 1.0 Pro Fast released?

How do I use the Seedance 1.0 Pro Fast API?

What parameters does the Seedance 1.0 Pro Fast API support?

Does the Seedance 1.0 Pro Fast API support image to video?

What video resolutions and aspect ratios does Seedance 1.0 Pro Fast support?

How do I write prompts for Seedance 1.0 Pro Fast?

Can Seedance 1.0 Pro Fast videos be used commercially?

How much does the Seedance 1.0 Pro Fast API cost?

How do I get a Seedance 1.0 Pro Fast API key?

Is the Seedance 1.0 Pro Fast API free?

Related Models

Key Features of the ByteDance Seedance 1.0 Pro Fast API

What You Can Build with the Seedance 1.0 Pro Fast API

How to Get a Seedance 1.0 Pro Fast API Key and Start Building

Sign Up & Top Up

Get Your Seedance 1.0 Pro Fast API Key

Make Your First Seedance 1.0 Pro Fast API Call

User Reviews

Seedance 1.0 Pro Fast API FAQ

What is Seedance 1.0 Pro Fast?

Seedance 1.0 Pro Fast vs Seedance 1.0 Pro: what's the difference?

When was Seedance 1.0 Pro Fast released?

How do I use the Seedance 1.0 Pro Fast API?

What parameters does the Seedance 1.0 Pro Fast API support?

Does the Seedance 1.0 Pro Fast API support image to video?

What video resolutions and aspect ratios does Seedance 1.0 Pro Fast support?

How do I write prompts for Seedance 1.0 Pro Fast?

Can Seedance 1.0 Pro Fast videos be used commercially?

How much does the Seedance 1.0 Pro Fast API cost?

How do I get a Seedance 1.0 Pro Fast API key?

Is the Seedance 1.0 Pro Fast API free?

Related Models