Seedance 2.5 — Long clips up to 30 seconds, up to 4K

Name: Seedance 2.5
Brand: ByteDance
SKU: seedance-2.5

Seedance 2.5 is the highest-ceiling Seedance model on the platform: clips run 4 to 30 seconds and you pick 480p, 720p, 1080p or 4K per request. It covers text-to-video, image-to-video, first and last frame, and reference-to-video with up to 16 reference images.

Highlights

4–30 s · 480p / 720p / 1080p / 4K · Text to video · Image to video · First and last frame · Reference to video

Best for

Longer shots, high-resolution deliverables, and pipelines that anchor a clip with many reference images.

Input

Text, first frame, last frame, up to 16 reference images

Output

Video

Input

Prompt

Duration (4–30 s)5s

Resolution

Aspect ratio

ResultPreview

Estimated price$1.296$0.2592/s × 5s

Checking your session…

Try one of these prompts

Pricing

Prepaid in US dollars. We hold the quoted amount while it runs and charge it only on delivery — failed runs are free.

Cost of your first test

$0.5764

One 5-second clip at the lowest-cost settings.

What your top-up buys

Top up

$10

≈ 17 test runs

$50

≈ 86 test runs

$100

≈ 173 test runs

Model	Mode	Resolution	Our price	Official	You save
Seedance 2.5 ByteDance	Text to video	480p	$0.1152/s
Seedance 2.5 ByteDance	Text to video	720p	$0.2592/s
Seedance 2.5 ByteDance	Text to video	1080p	$0.4618/s	$0.569/s	-18%
Seedance 2.5 ByteDance	Text to video	4K	$1.955/s
Seedance 2.5 ByteDance	Image to video	480p	$0.1152/s
Seedance 2.5 ByteDance	Image to video	720p	$0.2592/s
Seedance 2.5 ByteDance	Image to video	1080p	$0.4618/s	$0.569/s	-18%
Seedance 2.5 ByteDance	Image to video	4K	$1.955/s
Seedance 2.5 ByteDance	First and last frame	480p	$0.1152/s
Seedance 2.5 ByteDance	First and last frame	720p	$0.2592/s
Seedance 2.5 ByteDance	First and last frame	1080p	$0.4618/s	$0.569/s	-18%
Seedance 2.5 ByteDance	First and last frame	4K	$1.955/s
Seedance 2.5 ByteDance	Reference to video	480p	$0.1152/s
Seedance 2.5 ByteDance	Reference to video	720p	$0.2592/s
Seedance 2.5 ByteDance	Reference to video	1080p	$0.4618/s	$0.569/s	-18%
Seedance 2.5 ByteDance	Reference to video	4K	$1.955/s

What is the Seedance 2.5 API?

The Seedance 2.5 API lets you generate video from ByteDance's Seedance 2.5 model through one MakerNice API key. Compared with Seedance 2.0 it allows longer clips (up to 30 seconds instead of 15), exposes a resolution choice from 480p to 4K, and accepts up to 16 reference images instead of 9. You create a job, poll its status, and download the finished file.

4 ways to generate, one endpoint

Set mode, send the inputs it needs — that's it.

Text to video

mode: "t2v" · prompt

Just a prompt — the model builds the shot from scratch.

Image to video

mode: "i2v" · image_url

Send an image in image_url and it becomes the opening frame.

First and last frame

mode: "flf" · image_url + last_image_url

Set the first and last frame; the model animates everything in between.

Reference to video

mode: "r2v" · reference_images (≤ 16)

Add up to 16 reference images to lock in characters, products and style.

What you can build with this model

Workflows this model is a good fit for.

Extended single-take scenes

Generate 20 to 30 second establishing shots or slow camera moves in one request instead of stitching several short clips.

Try it in the playground

4K masters for post-production

Render at 4K when the footage is headed for a larger canvas or heavy cropping, and drop to 720p while you iterate.

Try it in the playground

Reference-driven consistency

Pass up to 16 reference images, such as characters, props and style frames, to keep a series visually consistent.

Try it in the playground

Why run Seedance 2.5 on MakerNice

Quote before you pay

Every run gets an exact quote first, locked for 12 minutes. You're charged that amount — never more.

Failed runs are free

We hold the amount while the model runs and charge only on delivery. Failures and queued cancellations cost nothing.

Switch models with one field

Same request, key, balance and console for all 16 models. Not happy with the result? Change model and run it again.

Which should you pick: Seedance 2.5, Seedance 2.0, Seedance 2.0 Fast?

Compare modes, length, resolution and references, then run the same prompt on each.

	Seedance 2.5	Seedance 2.0	Seedance 2.0 Fast
Modes	Text to video · Image to video · First and last frame · Reference to video	Text to video · Image to video · First and last frame · Reference to video	Text to video · Image to video · First and last frame · Reference to video
Duration	4–30 s	4–15 s	4–15 s
Resolution	480p / 720p / 1080p / 4K	720p / 1080p	Single tier
Reference images	Up to 16	Up to 9	Up to 9
Audio	—	—	—
Starting price	$0.1152/s	$0.1704/s	$0.1027/s

Integrate Seedance 2.5 in three steps

Step 1

Create an API key

Open

Step 2

Quote and create

POST the input to /v1/generations/quote with the model field set to seedance-2.5, then create the generation with the quote id.

Open

Step 3

Poll the result

GET /v1/generations/{id} until the status is succeeded, then download the output.

Open

Docs/API/SEEDANCE-2-5

API reference

Copy-paste requests for this model. The full parameter reference is in the docs.

curl https://api.makernice.com/v1/generations/quote \
  -H "Authorization: Bearer $MAKERNICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.5",
    "mode": "t2v",
    "prompt": "A slow aerial push-in over a misty bamboo forest at sunrise, soft golden light filtering through the leaves, cinematic and calm.",
    "duration": 5,
    "resolution": "720p"
  }'

Invalid request

400 invalid_request names each failing field. Fields the mode doesn't use are rejected too. Nothing is held.

Key or balance

401 means a missing or invalid key; 402 means the balance or the key's spend limit isn't enough.

Quote problems

A changed price-affecting field returns 422 quote_mismatch; an expired quote 410; a used one 409. Get a new quote.

Failed generation

A failed generation is never charged — the hold is released in full. Keep the generation id and retry when you're ready.

Frequently asked questions

Common questions about this model.

What is Seedance 2.5?

Seedance 2.5 is an AI video generation model from ByteDance, available through the MakerNice API with one key and one prepaid balance. ByteDance's flagship for long takes: up to 30 seconds, 480p to 4K, and up to 16 reference images to keep every shot on-model.

How long can Seedance 2.5 videos be?

Between 4 and 30 seconds per request, with 5 seconds as the default. You're billed for the duration you request.

How many reference images does Seedance 2.5 support?

Up to 16 reference images, sent in reference_images in reference to video mode.

How much does Seedance 2.5 cost per second?

Seedance 2.5 is billed per second of the duration you request, and the per-second rate depends on the settings you choose; every combination is listed in the price table on this page. Call POST /v1/generations/quote to get the exact amount before you run it. Failed runs are never charged.

Seedance 2.5 vs Seedance 2.0: which should I use?

Pick Seedance 2.5 when you need clips longer than 15 seconds (up to 30), 480p or 4K output, or more than 9 reference images (up to 16). Seedance 2.0 covers the same four modes at 4–15 seconds in 720p or 1080p with up to 9 references. Switching is just the model id, so you can run one prompt on both and compare.

Which input modes does it support?

Text-to-video, image-to-video (image_url as the first frame), first and last frame (image_url plus last_image_url), and reference-to-video with up to 16 images in reference_images.