Video Official partner

Seedance 2 Fast API

Cheaper, faster Seedance 2 (no 1080p).

720P
Max resolution: 15s
Max clip length: ~180s
Avg. generation: 7 credits/s
From

Video · made with Seedance 2.5

A cinematic short: a lighthouse keeper, a woman in her late 50s with silver-streaked dark hair in a low bun, navy wool peacoat over a cream knit sweater, climbs a narrow stone spiral staircase at dusk. Brass lantern light flickering on wet stone walls. Handheld 35mm, warm practical lighting, rain outside, gentle orchestral score.

Playground

Try Seedance 2 Fast right here.

model: seedance-2-fast

Prompt

Aspect ratio Duration Resolution

Generate audio

Media inputs

Start image End image Reference images Reference videos Reference audio

Advanced settings

Return last frame Also return the final frame as a still image. Web search Lock camera Disable camera movement. Seed

Estimated cost 56–144 credits · $0.56–$1.44 Generate in Studio

Output Example · Seedance 2.5

Pricing

Simple per-second pricing.

7–18 credits per second of output ≈ $0.07–$0.18

The rate depends on the resolution and options you pick.

A 8s clip runs 56–144 credits (≈ $0.56–$1.44).

You only pay for successful generations. Failed jobs are refunded automatically.
One credit balance across every model on Apiframe, no per-model plans.
Start with free credits. No subscription required.
Volume discounts on larger plans.

See plans and credit packs

Specs

At a glance.

Provider ByteDance

Model ID seedance-2-fast

Aspect ratios 21:9, 16:9, 4:3, 1:1, 3:4, 9:16

Resolutions 480p, 720p

Durations 4s, 6s, 8s, 10s, 12s, 15s

Image input Supported

Audio Supported

Avg. time ~180s

Quickstart

How to call the Seedance 2 Fast API.

Send one POST /v2/videos/generate request with your API key. The call returns a jobId you can poll, or pass a webhook_url and the result is pushed to you the moment it's ready.

Swap seedance-2-fast for any other model and nothing else changes.

Get API key Read the docs

generate.js

const response = await fetch("https://api.apiframe.ai/v2/videos/generate", {
  method: "POST",
  headers: {
    "X-API-Key": "afk_your_api_key_here",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "prompt": "a cinematic sunrise over a futuristic cityscape, smooth camera push-in",
    "model": "seedance-2-fast",
    "seedanceParams": {
      "resolution": "720p",
      "start_image": "https://example.com/input.jpg",
      "generate_audio": false,
      "end_image": "https://example.com/input.jpg"
    }
  }),
});
const { jobId } = await response.json();
console.log(jobId);

import requests

response = requests.post(
    "https://api.apiframe.ai/v2/videos/generate",
    headers={
        "X-API-Key": "afk_your_api_key_here",
        "Content-Type": "application/json",
    },
    json={
        "prompt": "a cinematic sunrise over a futuristic cityscape, smooth camera push-in",
        "model": "seedance-2-fast",
        "seedanceParams": {
            "resolution": "720p",
            "start_image": "https://example.com/input.jpg",
            "generate_audio": False,
            "end_image": "https://example.com/input.jpg"
        }
    },
)
print(response.json())  # { "jobId": "...", "status": "QUEUED" }

curl -X POST https://api.apiframe.ai/v2/videos/generate \
  -H "X-API-Key: afk_your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
        "prompt": "a cinematic sunrise over a futuristic cityscape, smooth camera push-in",
        "model": "seedance-2-fast",
        "seedanceParams": {
            "resolution": "720p",
            "start_image": "https://example.com/input.jpg",
            "generate_audio": false,
            "end_image": "https://example.com/input.jpg"
        }
    }'

let job;
do {
  await new Promise((r) => setTimeout(r, 2000));
  job = await fetch("https://api.apiframe.ai/v2/jobs/JOB_ID", {
    headers: { "X-API-Key": "afk_your_api_key_here" },
  }).then((r) => r.json());
} while (job.status !== "COMPLETED" && job.status !== "FAILED");
console.log(job.result);

import requests, time

while True:
    job = requests.get(
        "https://api.apiframe.ai/v2/jobs/JOB_ID",
        headers={"X-API-Key": "afk_your_api_key_here"},
    ).json()
    if job["status"] in ("COMPLETED", "FAILED"):
        break
    time.sleep(2)
print(job["result"])

curl https://api.apiframe.ai/v2/jobs/JOB_ID \
  -H "X-API-Key: afk_your_api_key_here"

Input schema

Every field Seedance 2 Fast accepts, with types and defaults. The full reference lives in the docs.

Field	Type	Description
prompt required	string	Text description of what to generate.
model required	string	The model identifier for this endpoint. Default:"seedance-2-fast" · "seedance-2-fast"
seedanceParams.resolution	string	Resolution Default:"720p" · "480p", "720p"
seedanceParams.start_image	string (URL)	Use a still as the first frame of the clip.
seedanceParams.generate_audio	boolean	Generate audio Default:false
seedanceParams.end_image	string (URL)	Optional last frame to control the ending.
seedanceParams.reference_image_urls	string[] (URLs)	Reference images
seedanceParams.reference_video_urls	string[] (URLs)	Reference videos
seedanceParams.reference_audio_urls	string[] (URLs)	Reference audio
seedanceParams.return_last_frame	boolean	Also return the final frame as a still image. Default:false
seedanceParams.web_search	boolean	Web search Default:false
seedanceParams.camera_fixed	boolean	Disable camera movement. Default:false
seedanceParams.seed	number	Reuse a number to reproduce the same result. step 1

The Seedance flagship

Seedance 2 Fast is one of 7 Seedance video models on Apiframe. The full editorial page (showcase, comparison, and use cases) lives on the flagship.

Flagship from 13 cr/s Seedance 2.5

Long-form cinematic video in a single pass.

Explore Seedance 2.5 All video models

Seedance 2 Fast questions

What teams ask before shipping with Seedance 2 Fast. Everything else lives in the docs.

Is there an API for Seedance 2 Fast?

Yes. Apiframe exposes Seedance 2 Fast through a single REST endpoint (POST /v2/videos/generate with model: "seedance-2-fast"). You get one unified API, key, and billing across every supported model, with no separate ByteDance account required.

How much does the Seedance 2 Fast API cost?

Seedance 2 Fast uses simple pay-as-you-go pricing on Apiframe. You only pay for successful generations. See the pricing page for plans and volume discounts.

How do I call the Seedance 2 Fast API?

Send a POST request to /v2/videos/generate with your X-API-Key and a JSON body containing model: "seedance-2-fast". The call returns a jobId; poll GET /v2/jobs/{id} or use a webhook to receive the result.

What parameters does Seedance 2 Fast support?

Seedance 2 Fast accepts 11 model-specific parameters (nested under seedanceParams) plus the common prompt and webhook_url fields. See the input schema above for the full list with types and defaults.