Seedance 2.0 Mini API

Introduction

Seedance 2.0 Mini image-to-video starts the clip on a picture you supply and animates it for up to 15 seconds. Add a closing still and the shot has to arrive there, which is what makes transitions repeatable.

Seedance 2.0 Mini is the smallest tier of ByteDance's Seedance 2.0 line. It publishes the same three endpoints as Seedance 2.0 Fast and returns 4 to 15 second clips at 480p or 720p, with audio generated in the same pass.

Choose a Seedance 2.0 Mini mode by starting material

Key features

The same contract as Seedance 2.0 Fast

Mini publishes the same endpoints and the same fields as Seedance 2.0 Fast: adaptive framing plus six fixed ratios, 4 to 15 seconds or -1 for a length the model chooses, native audio and seed, with resolution capped at 720p. A pipeline written against Mini moves to Fast by changing the model id, not the request.

Built for volume

Mini is the tier to pick when throughput matters more than the extra quality of the larger Seedance 2.0 models. Every endpoint is asynchronous: send an Idempotency-Key with each request, store the task ids and let polling or callbacks resolve them. The key is honoured for 24 hours, so a retry after a dropped connection returns the original task.

Longer sequences with Video Extend

To go past fifteen seconds, send a finished clip to the video-extend endpoint: its final frame opens a new Seedance 2.0 Mini shot and you get one file back with both joined.

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

Each task is rounded up to whole credits, so one run at the lowest tier costs 19 credits for a 5-second clip ($0.19).

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

Catalogue stills into motion

A flat product or shelf photo becomes a few seconds of movement without a reshoot. The published example restocks a chiller shelf can by can in four seconds with the camera locked off, small clinks and chiller hum included.

A time-lapse between two frames

With last_image_url, the clip has to arrive at the closing still. One of this endpoint's examples turns the same lane from late summer to deep autumn over ten seconds, locked camera, no cuts.

Prompt guide & pro tips

Prepare the opening frame

image_url is required and fixes composition, look and quality ceiling; each side must be between 300 and 6000 pixels. Remove text, watermarks and logos first, because they carry into the video.

Say what changes, not what is there

The prompt is optional. Describe the action, the camera move and the sound that follow the frame; left out, the model decides the motion itself. Confirm the movement at 4 or 5 seconds before paying for 15, because a single-frame shot drifts further the longer it runs.

Adapt the included example

The published example uses aspect_ratio 16:9, duration_seconds 4, generate_audio true and resolution 720p, with a shelf photo as image_url.

A gloved hand enters from the right and fills the gap in the upper row can by can, facing each label forward, then withdraws. Camera locked off on the shelf. Small metallic clinks, chiller hum, fluorescent light unchanged throughout.

Four seconds is enough for one clear action on a locked-off shot. Swap in your own product photo and keep the single motion.

Give the closing frame the same shape

last_image_url needs the same proportions as the opening frame; otherwise it is cropped to match. Hold camera and light steady between the two frames and change one clear state, such as the season in the lane example.

API quick start

Call the Seedance 2.0 Mini API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model bytedance/seedance-2.0-mini/image-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "bytedance/seedance-2.0-mini/image-to-video",
  "input": {
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
    "aspect_ratio": "adaptive",
    "resolution": "720p",
    "duration_seconds": 5,
    "generate_audio": true
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Seedance 2.0 Mini API questions

All Seedance models

Seedance 2.0 Fast has the same settings and is tuned for speed, and full Seedance 2.0 goes up to 4K for delivery.

• Seedance 2.5 APIByteDance's newest: 30-second clips with native audioFrom 56 credits for a 5-second clip
• Seedance 2.0 Mini APILightweight Seedance for quick 720p drafts with soundFrom 9 credits for a 5-second clip
• Seedance 2.0 APICinematic clips up to 4K with native audioFrom 33 credits for a 5-second clip
• Seedance 2.0 Fast APIFaster Seedance 2.0 with sound at 720pFrom 17 credits for a 5-second clip
• Seedance 1.5 Pro APINative-audio clips with an optional locked cameraFrom 9 credits for a 5-second clip

Other video APIs

• MiniMax H3 APIExpressive clips with audio, up to 2KFrom 28 credits for a 5-second clip
• Kling 3.0 API4K clips, multi-shot cuts and motion controlFrom 51 credits for a 5-second clip
• Vidu Q4 Preview APIUp to 4K clips with sound and spoken dialogueFrom 34 credits for a 5-second clip
• Wan 3.0 APIUp to 30-second clips with synced audioFrom 34 credits for a 5-second clip
• Kling O3 APIKling’s unified model: create, animate, reference and edit up to 4KFrom 51 credits for a 5-second clip
• MiniMax H3 Max APIFast clips with ambience, effects and musicFrom 38 credits for a 5-second clip

More about Seedance 2.0 Mini

Try it

Seedance 2.0 Mini AI Video Generator onlineCreate videos with Seedance 2.0 Mini in PopNow

Docs

Seedance 2.0 Mini model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage to video guide for the PopNow APIWebhooks: get Seedance 2.0 Mini results without polling