Seedance 2.5 API

Name: Seedance 2.5 API - Example AI Video
Uploaded: 2026-07-28
Description: Sample video generated with the Seedance 2.5 API on VideoGenAPI

Interactive demo

Try Seedance 2.5 right now

Explore the interface and see how easy it is to generate videos with Seedance 2.5. Sign up for free to start creating!

Playground Demo - Seedance 2.5

Demo Mode

Describe your video *

magic_button AI Powered

Be specific for best results 0/1000

Generation Type

Video Settings

Sign up to generate videos

Create a free account to access the full playground and generate videos with Seedance 2.5 on a monthly plan.

timer ~150s generation

rocket_launch Get Started Free

Demo Preview

Demo Mode

Seedance 2.5

by ByteDance

Seedance 2.5 is a state-of-the-art AI video generation model designed to create cinematic, high-quality videos from text and image prompts with advanced motion, strong scene continuity, and professional creative control.

1080p • 5-30s • ~150s processing

Gallery

Seedance 2.5 examples

Discover what's possible with Seedance 2.5 AI video generation

A street food vendor prepares noodles from first flame to finished bowl, steam and wok fire, camera drifts around the stall, 30 seconds

Generated with the Seedance 2.5 API at up to 1080p. Results vary with prompt detail and requested duration.

What is the Seedance 2.5 API?

The Seedance 2.5 API is a REST interface that lets developers generate AI videos programmatically using ByteDance's Seedance 2.5 model. It supports text-to-video, image-to-video through a single POST endpoint. VideoGenAPI handles authentication, billing, and provider infrastructure - you only need one API key to start building with the Seedance 2.5 API.

ByteDance

Provider

REST

API protocol

~150s

Avg. generation

How to use the Seedance 2.5 API

Integrate the Seedance 2.5 API in your app in under 5 minutes with these four steps.

1

Create your VideoGenAPI account

Sign up free at VideoGenAPI.com and generate your API key from the dashboard. No ByteDance account needed.
2

Send a request to the Seedance 2.5 API

POST to https://videogenapi.com/api/v1/generate with your API key, model "seedance-25", and a text prompt describing your video.
3

Poll for completion

Use the returned generation_id to poll GET /api/v1/status/{id} until the job completes. Video completion webhooks are not available yet.
4

Download your video

Once status is "completed", retrieve the video URL from the response and embed it in your app, website, or workflow.

Get your Seedance 2.5 API key

Documentation

About Seedance 2.5

info Overview

Seedance 2.5 is ByteDance's flagship video model and the answer to a specific problem: most frontier models cap out around 8-10 seconds, which is too short to carry a narrative beat. Seedance 2.5 generates up to 30 seconds in a single request while holding subject and style consistent across the whole clip. ByteDance trained it on the short-form video that made TikTok work, and that shows in the output: pacing, framing and motion feel native to social feeds rather than adapted from film. The trade-off is time, at roughly 150 seconds per generation, so it suits considered work rather than live iteration.

stars Key Strengths

check_circle Up to 30-second clips - three times the length of most premium models
check_circle Subject and style consistency held across the full duration
check_circle Social-native framing and pacing from ByteDance training data
check_circle Text-to-video and image-to-video at up to 1080p
check_circle Single request replaces stitching several short generations together

check_circle Supported Features

Text to Video
Image to Video

settings Specifications

Max Resolution: 1080p
Duration Range: 5-30s
Avg. Processing: ~150s

workspace_premium Why Seedance 2.5 via VideoGenAPI?

check_circle
Unified API: Access Seedance 2.5 alongside 15 other models with one API key - no separate ByteDance setup.
check_circle
Per-video pricing: Seedance 2.5 videos count against your monthly plan, from $0.011/video, with no per-second billing.
check_circle
Production-ready: one REST endpoint, status polling, an MCP server for AI agents, and full docs.

Use cases

What you can build with Seedance 2.5

1

Story-driven social posts

Fit a beginning, middle and end into one generation instead of editing clips together.

2

Process and how-to footage

Show a full sequence such as cooking, assembly or transformation without cutting.

3

Long-form B-roll

Produce 30-second beds that an editor can trim, rather than clips too short to cut into.

API reference

Seedance 2.5 API documentation

Quick start guide to integrate Seedance 2.5 in your application

code Endpoint

POST https://videogenapi.com/api/v1/generate

tune Seedance 2.5 API parameters

Request parameters accepted by the Seedance 2.5 API on POST /api/v1/generate
Parameter	Type	Required	Seedance 2.5 values
model	string	Yes	`"seedance-25"`
prompt	string	Yes	Scene description, up to 1,000 characters.
image_url	string	No	Public jpg, png, gif or webp URL. Animates the image (image-to-video).
duration	integer	No	5 to 30 seconds. Plan caps: 5s Basic, 10s Starter, 15s Unlimited.
resolution	string	No	480p, 720p, 1080p. Plan caps: 480p Basic, 720p Starter, 1080p Unlimited.
aspect_ratio	string	No	16:9, 4:3, 1:1 or 9:16 (text-to-video).
seed	integer	No	Fixed value for reproducible output, -1 for random.
add_audio	boolean	No	Adds an AI sound-effects track when set to true.

Average generation time: ~150s. Poll GET /api/v1/status/{id} with the returned generation_id. Full reference: /docs/generate.

send Request Example

{
  "model": "seedance-25",
  "prompt": "A street food vendor prepares noodles from first flame to finished bowl, steam and wok fire, camera drifts around the stall, 30 seconds",
  "duration": 10,
  "resolution": "480p"
}

download Response Example

{
  "success": true,
  "generation_id": "gen_abc123xyz",
  "status": "in_progress",
  "estimated_time": 150}

integration_instructions Code Examples

const response = await fetch('https://videogenapi.com/api/v1/generate', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    model: 'seedance-25',
    prompt: 'A street food vendor prepares noodles from first flame to finished bowl, steam and wok fire, camera drifts around the stall, 30 seconds',
    duration: 10  })
});

const data = await response.json();
console.log(data.generation_id);

import requests

response = requests.post(
    'https://videogenapi.com/api/v1/generate',
    headers={
        'Content-Type': 'application/json',
        'Authorization': 'Bearer YOUR_API_KEY'
    },
    json={
        'model': 'seedance-25',
        'prompt': 'A street food vendor prepares noodles from first flame to finished bowl, steam and wok fire, camera drifts around the stall, 30 seconds',
        'duration': 10    }
)

data = response.json()
print(data['generation_id'])

$ch = curl_init('https://videogenapi.com/api/v1/generate');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
    'model' => 'seedance-25',
    'prompt' => 'A street food vendor prepares noodles from first flame to finished bowl, steam and wok fire, camera drifts around the stall, 30 seconds',
    'duration' => 10]));

$response = curl_exec($ch);
$data = json_decode($response, true);
echo $data['generation_id'];

curl -X POST https://videogenapi.com/api/v1/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "seedance-25",
    "prompt": "A street food vendor prepares noodles from first flame to finished bowl, steam and wok fire, camera drifts around the stall, 30 seconds",
    "duration": 10  }'

Seedance 2.5 image-to-video request

curl -X POST https://videogenapi.com/api/v1/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "seedance-25",
    "prompt": "Slow push in, soft natural light, subtle movement",
    "image_url": "https://example.com/your-image.jpg",
    "duration": 5
  }'

View Full Documentation arrow_forward

Pricing

Seedance 2.5 API pricing

Seedance 2.5 is billed per video, not per second of output. See the cost calculator for your volume.

$0.011

per Seedance 2.5 video on the Starter plan

Seedance 2.5 API cost per video by VideoGenAPI plan
Plan	Monthly	Videos	Cost / video	Max output
Basic	$29	1,500	$0.019	480p, 5s
Starter	$49	4,500	$0.011	720p, 10s
Unlimited	$199	No cap	Flat	1080p, 15s

check_circle One API key for Seedance 2.5 and 15 other models
check_circle No ByteDance account required
check_circle Billed per video, never per second of output

Start with the Seedance 2.5 API

Comparison

Seedance 2.5 API vs alternatives

How the Seedance 2.5 API compares on resolution, clip length, generation speed and price. All models below share one API key.

Comparison of the Seedance 2.5 API against alternative AI video generation models on VideoGenAPI
Model	Provider	Max resolution	Clip length	Avg. speed	Price / video
Seedance 2.5 API This page	ByteDance	1080p	5-30s	~150s	Included, from $0.011
Seedance 2.0 API	ByteDance	1080p	5-10s	~30s	Included, from $0.011
Seedance 2.0 Mini API	ByteDance	1080p	5-15s	~88s	Included, from $0.011
Kling 3.0 API	Kuaishou	1080p	5-10s	~250s	Included, from $0.011

Switching between these models means changing the seedance-25 value in your request body. The endpoint, authentication and status polling stay the same.

Limits

Seedance 2.5 API limitations

Plan duration and resolution caps apply even when the model supports higher output. See pricing.
Jobs are asynchronous: poll GET /api/v1/status/{id}. Video completion webhooks are not available yet.
Rate limits and fair-use throttling are documented on /docs/rate-limits.
Prompts and images that violate the content guidelines are rejected.

Text-to-video API hub Image-to-video API hub Catalogue benchmark Generate endpoint docs

Reviewed by Enzo Lanne · Founder, VideoGenAPI · Updated 28 July 2026

FAQ

Seedance 2.5 API questions

How long can a Seedance 2.5 video be? expand_more

Seedance 2.5 generates clips from 5 to 30 seconds. That is the longest premium output on VideoGenAPI, against 8 seconds for Veo 3 and 10 for Kling 3. Only LTX-Video 13B goes longer, at lower resolution.

What is the difference between Seedance 2.5, Seedance 2 and Seedance 2 Mini? expand_more

Seedance 2.5 is the quality-first tier with 30-second output at around 150 seconds per generation. Seedance 2 is the fast tier at roughly 30 seconds. Seedance 2 Mini sits between them, offering 15-second clips at around 88 seconds.

Why does Seedance 2.5 take longer than other models? expand_more

Longer clips mean more frames to generate and more consistency to maintain. The roughly 150-second average is the cost of 30-second output; use Seedance 2 when you need speed over length.

Does Seedance 2.5 hold character consistency across a long clip? expand_more

Yes, that is the point of the model. Subjects and style stay stable across the full duration, which is what breaks down when you stitch several short generations together.

How do I call Seedance 2.5 from the API? expand_more

POST to /api/v1/generate with model "seedance-25", your prompt, and a duration up to 30. Poll GET /api/v1/status/{id} with the returned generation_id every 10 to 15 seconds, since generations take longer than the fast models.

How much does one Seedance 2.5 API video cost? expand_more

Each Seedance 2.5 generation counts as one video in your VideoGenAPI plan, whatever its length within plan limits. On Starter ($49/month for 4,500 videos, up to 720p and 10s) that is about $0.011 per video. Unlimited ($199/month) removes the monthly cap and raises output to 1080p. Per-second video APIs bill every second of output instead, so a 10-second clip costs ten times a 1-second one.

Related models

Compare with other AI video models

Explore alternative models for different quality, speed, and budget needs.

Seedance 2.0 API

ByteDance

Lightning-fast model perfect for quick prototyping and creative experimentation.

Seedance 2.0 API docs arrow_forward

Seedance 2.0 Mini API

ByteDance

Seedance 2 Mini is a lightweight AI video generation model built for fast, controllable short-form video creation from text and image prompts, offering smooth motion, reference-guided consistency, and efficient creative iteration for ads, social content, and visual prototyping.

Seedance 2.0 Mini API docs arrow_forward

Kling 3.0 API

Kuaishou

Kling 3: Top-tier text-to-video generation with unparalleled motion fluidity, cinematic visuals, and exceptional prompt precision.

Kling 3.0 API docs arrow_forward

Try Seedance 2.5 right now

Demo Preview

Seedance 2.5 examples

What is the Seedance 2.5 API?

How to use the Seedance 2.5 API

Create your VideoGenAPI account

Send a request to the Seedance 2.5 API

Poll for completion

Download your video

About Seedance 2.5

info Overview

stars Key Strengths

check_circle Supported Features

settings Specifications

workspace_premium Why Seedance 2.5 via VideoGenAPI?

What you can build with Seedance 2.5

Story-driven social posts

Process and how-to footage

Long-form B-roll

Seedance 2.5 API documentation

code Endpoint

tune Seedance 2.5 API parameters

send Request Example

download Response Example

integration_instructions Code Examples

Seedance 2.5 image-to-video request

Seedance 2.5 API pricing

Seedance 2.5 API vs alternatives

Seedance 2.5 API limitations

Seedance 2.5 API questions

Compare with other AI video models

Seedance 2.0 API

Seedance 2.0 Mini API

Kling 3.0 API

Ready to ship with Seedance 2.5?