How to Use Seedance 2.0 Mini API
A step-by-step Seedance 2.0 Mini API tutorial with Python, Node.js and cURL: submit a text to video job, poll it or receive a webhook, and download the video. The example below costs $0.21.
- Endpoints
- 3
- Text to Video · Image to Video · Reference to Video
- Example request
- $0.21
- Text to Video
- Languages
- 3
- Python · Node.js · cURL
- Failed runs
- $0
- refunded automatically
Get an API key
Create an account, add credits (from $10) and create a key in Dashboard → API keys. Store it as CHEAPERGEN_API_KEY on your server. Every request sends it as a bearer token.
Choose a Seedance 2.0 Mini endpoint
Each task has its own endpoint. All of them take a JSON body and return a generation you can poll.
| Task | Endpoint | Required | From |
|---|---|---|---|
| Text to Video | bytedance/seedance-2.0-mini/text-to-video | prompt | $0.02/s |
| Image to Video | bytedance/seedance-2.0-mini/image-to-video | prompt, image_url | $0.02/s |
| Reference to Video | bytedance/seedance-2.0-mini/reference-to-video | prompt | $0.02/s |
Submit a text to video job
This program submits the job, polls every 3 seconds until it finishes and prints the video URL. Swap the prompt and settings for your own.
import os, time, requests
API = "https://cheapergen.com/api/v1"
headers = {"Authorization": f"Bearer {os.environ['CHEAPERGEN_API_KEY']}"}
# 1. Submit the job
job = requests.post(f"{API}/run/bytedance/seedance-2.0-mini/text-to-video", headers=headers, json={
"prompt": "A slow dolly-in on a ceramicist shaping a vase at golden hour, dust in the light, shallow depth of field",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5
}).json()
# 2. Poll until it finishes (or pass "webhook_url" and skip polling)
while job["status"] in ("queued", "running"):
time.sleep(3)
job = requests.get(f"{API}/generations/{job['id']}", headers=headers).json()
print(job["status"], job["output"]["video"]["url"] if job["status"] == "succeeded" else job["error"])Set the parameters that matter
The settings for bytedance/seedance-2.0-mini/text-to-video, with what each one does to the price.
| Parameter | Type · default | What it does | Price effect |
|---|---|---|---|
| aspect_ratio | string (enum) · 16:9 | Output frame shape. 16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9 | 16:9: $0.02/s |
| resolution | string (enum) · 720p | Output resolution. Higher resolutions cost more per second. 480p · 720p | 480p: $0.02/s 720p: $0.0429/s |
| duration | integer · 5 | Length of the generated clip in seconds (4–15s). You pay per second. | Billed per second |
| generate_audio | boolean · true | Generate synchronized sound, ambience and dialogue. No extra cost. | None |
| seed | integer | Use the same seed and settings to reproduce a result. Leave empty for random. | None |
Other Seedance 2.0 Mini endpoints take the same shape with their own inputs:
POST /api/v1/run/bytedance/seedance-2.0-mini/image-to-video
{
"prompt": "The camera pushes in as she turns and smiles; hair moves in the wind",
"image_url": "https://cdn.cheapergen.com/samples/portrait.jpg",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5
}POST /api/v1/run/bytedance/seedance-2.0-mini/reference-to-video
{
"prompt": "@Image1 unboxes the product from @Image2 on a marble desk, copying the camera move of @Video1",
"reference_image_urls": [
"https://cdn.cheapergen.com/samples/reference-1.jpg",
"https://cdn.cheapergen.com/samples/reference-2.jpg"
],
"reference_video_urls": [
"https://cdn.cheapergen.com/samples/reference-1.mp4"
],
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5
}Get the result
A job moves from queued to running to succeeded, failed or canceled. Poll GET /api/v1/generations/{id}, or pass webhook_url and we POST the result to you. Download the output and store it yourself.
{
"id": "gen_8c2QmX1nq0k4",
"object": "generation",
"model": "bytedance/seedance-2.0-mini",
"endpoint": "bytedance/seedance-2.0-mini/text-to-video",
"mode": "text-to-video",
"status": "succeeded",
"input": {
"prompt": "A slow dolly-in on a ceramicist shaping a vase at golden hour, dust in the light, shallow depth of field",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5
},
"output": {
"video": {
"url": "https://cdn.cheapergen.com/outputs/gen_8c2Q.mp4",
"content_type": "video/mp4",
"duration": 5,
"width": 1280,
"height": 720
}
},
"error": null,
"cost": {
"amount_usd": 0.2255,
"currency": "usd",
"estimated": false,
"official_usd": 0.264,
"saved_usd": 0.0385
},
"source": "api",
"created_at": "2026-10-15T09:21:04Z",
"started_at": "2026-10-15T09:21:06Z",
"completed_at": "2026-10-15T09:22:31Z"
}Price a request before you run it
The quote endpoint is free and needs no key. It returns the price, the official price and your discount for exactly the input you send.
curl -X POST https://cheapergen.com/api/v1/quote/bytedance/seedance-2.0-mini/text-to-video \
-H "Content-Type: application/json" \
-d '{"prompt":"A slow dolly-in on a ceramicist shaping a vase at golden hour, dust in the light, shallow depth of field","aspect_ratio":"16:9","resolution":"720p","duration":5}'| Status | Code | Meaning |
|---|---|---|
| 400 | invalid_request | A parameter is missing or out of range — the message names it. |
| 401 | unauthorized | Missing, malformed or revoked API key. |
| 402 | insufficient_balance | Not enough credits for the quoted price; top up or enable auto top-up. |
| 429 | rate_limited | Too many requests or generations in progress; back off and retry. |
| 502 | upstream_error | The model provider failed; the hold is refunded and you can retry. |
| 503 | model_unavailable | No healthy route right now; retry later or pick another model. |
FAQ
