Dreamina Seedance 2.0 Fast
Provider list prices: no platform markup, pay-as-you-go. These are official list prices. Logged-in customers may see effective prices including workspace discounts on /console/pricing.
Use Dreamina Seedance 2.0 Fast in 30 seconds
Asynchronous job API: create a task and poll it, or hold the request open with Prefer: wait. POST /v1/videos
import time
import requests
BASE = "https://synthorai.io/v1"
HEADERS = {"Authorization": "Bearer sk-syn-..."}
# 1) create the video generation job (POST /v1/videos)
task = requests.post(
f"{BASE}/videos",
headers=HEADERS,
json={
"model": "dreamina-seedance-2-0-fast-260128",
"prompt": "a watercolor lighthouse at dawn, waves rolling in, camera pulling back",
"resolution": "720p",
"duration": 5,
},
).json()
# 2) poll the job until it reaches a terminal state
while task["status"] in ("queued", "in_progress"):
time.sleep(5)
task = requests.get(f"{BASE}/videos/{task['id']}", headers=HEADERS).json()
# 3) completed → signed video URL (valid ~24h — download and store it promptly)
if task["status"] == "completed":
print(task["data"][0]["url"])
else:
print(task["error"])const HEADERS = {
Authorization: "Bearer sk-syn-...",
"Content-Type": "application/json",
};
interface VideoTask {
id: string;
status: "queued" | "in_progress" | "completed" | "failed" | "cancelled";
data?: Array<{ url: string }>;
error?: { code: string; message: string };
}
// 1) create the video generation job (POST /v1/videos)
const created = await fetch("https://synthorai.io/v1/videos", {
method: "POST",
headers: HEADERS,
body: JSON.stringify({
model: "dreamina-seedance-2-0-fast-260128",
prompt: "a watercolor lighthouse at dawn, waves rolling in, camera pulling back",
resolution: "720p",
duration: 5,
}),
});
let task = (await created.json()) as VideoTask;
// 2) poll the job until it reaches a terminal state
while (task.status === "queued" || task.status === "in_progress") {
await new Promise((r) => setTimeout(r, 5000));
const res = await fetch(`https://synthorai.io/v1/videos/${task.id}`, { headers: HEADERS });
task = (await res.json()) as VideoTask;
}
// 3) completed → signed video URL (valid ~24h — download and store it promptly)
if (task.status === "completed") console.log(task.data?.[0]?.url);
else console.error(task.error);# Create the job; "Prefer: wait" holds the request up to 60s and returns the
# completed task when generation finishes in time (else the queued task).
curl https://synthorai.io/v1/videos \
-H "Authorization: Bearer sk-syn-..." \
-H "Content-Type: application/json" \
-H "Prefer: wait=60" \
-d '{
"model": "dreamina-seedance-2-0-fast-260128",
"prompt": "a watercolor lighthouse at dawn, waves rolling in, camera pulling back",
"resolution": "720p",
"duration": 5
}'
# Still queued / in_progress? Poll until completed → data[0].url (valid ~24h).
curl https://synthorai.io/v1/videos/vid_9f2e8c1a4b7d \
-H "Authorization: Bearer sk-syn-..."package main
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"time"
)
const base = "https://synthorai.io/v1"
type videoTask struct {
ID string `json:"id"`
Status string `json:"status"`
Data []struct {
URL string `json:"url"`
} `json:"data"`
}
func call(method, url string, body []byte) (t videoTask) {
req, _ := http.NewRequest(method, url, bytes.NewReader(body))
req.Header.Set("Authorization", "Bearer sk-syn-...")
req.Header.Set("Content-Type", "application/json")
resp, _ := http.DefaultClient.Do(req)
defer resp.Body.Close()
json.NewDecoder(resp.Body).Decode(&t)
return t
}
func main() {
// 1) create the video generation job (POST /v1/videos)
payload, _ := json.Marshal(map[string]any{
"model": "dreamina-seedance-2-0-fast-260128",
"prompt": "a watercolor lighthouse at dawn, waves rolling in, camera pulling back",
"resolution": "720p",
"duration": 5,
})
task := call("POST", base+"/videos", payload)
// 2) poll the job until it reaches a terminal state
for task.Status == "queued" || task.Status == "in_progress" {
time.Sleep(5 * time.Second)
task = call("GET", base+"/videos/"+task.ID, nil)
}
// 3) completed → signed video URL (valid ~24h — download and store promptly)
if task.Status == "completed" {
fmt.Println(task.Data[0].URL)
}
}import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
// JDK built-in HttpClient — no extra dependency needed.
HttpClient http = HttpClient.newHttpClient();
// 1) create the job; "Prefer: wait=60" holds the request up to 60s and
// returns the completed task when generation finishes in time
HttpRequest create = HttpRequest.newBuilder(URI.create("https://synthorai.io/v1/videos"))
.header("Authorization", "Bearer sk-syn-...")
.header("Content-Type", "application/json")
.header("Prefer", "wait=60")
.POST(HttpRequest.BodyPublishers.ofString("""
{"model": "dreamina-seedance-2-0-fast-260128",
"prompt": "a watercolor lighthouse at dawn, waves rolling in, camera pulling back",
"resolution": "720p", "duration": 5}"""))
.build();
String task = http.send(create, HttpResponse.BodyHandlers.ofString()).body();
System.out.println(task); // {"id":"vid_…","status":…} — completed → data[0].url
// 2) still queued / in_progress? Poll GET https://synthorai.io/v1/videos/{id} until the
// status turns completed, then download data[0].url (valid ~24h).About Dreamina Seedance 2.0 Fast
Dreamina Seedance 2.0 Fast is the speed-and-cost tier of ByteDance's Seedance 2.0 series on BytePlus ModelArk; the official tutorial recommends it when top-tier quality is not required and a balance of cost and generation speed matters most.
- It shares the flagship's capability set — text-to-video, first-frame and first-and-last-frame image-to-video, and optional synchronized audio via generate_audio, with multimodal reference, video editing, and video extension listed across the series — while output is capped at 480p or 720p, 24 fps, 4-15 seconds, in six aspect ratios.
- That profile fits ad variants, social clips, and iteration loops where turnaround beats resolution.
- On Synthorai it runs behind the same asynchronous /v1/videos job API as the rest of the video catalog, with create-and-poll or Prefer: wait semantics.
Specs & limits
| Modalities | text + image → video |
| Features | vision |
| Notable | Speed/cost tier of the Dreamina Seedance 2.0 series, officially recommended for a balance of cost and generation speed when top-tier quality is not required; same capability set as the flagship (t2v, first/last-frame i2v, generate_audio, multimodal reference, video editing/extension) with output capped at 480p/720p; 24 fps, 4-15 s, six aspect ratios, .mp4; version date 260128 encoded in the model id. |
FAQ
Is the Dreamina Seedance 2.0 Fast API free to try?
Yes: new accounts get 10 trial calls and up to $1 in free credit, no card required. That's enough to try Dreamina Seedance 2.0 Fast against your real workload before adding a payment method.
What is Dreamina Seedance 2.0 Fast best at?
Shares the flagship's capability set, plus 480p/720p output with optional audio and balance of cost and generation speed. See the About section for the full picture from the vendor's own release notes.
How much does Dreamina Seedance 2.0 Fast cost?
Dreamina Seedance 2.0 Fast costs $5.6 per million video tokens on Synthorai (video tokens ≈ width × height × 24fps × seconds ÷ 1024). Only successful generations are billed: pay-as-you-go, no platform markup, no subscription.
How do I generate videos with the Dreamina Seedance 2.0 Fast API?
POST to /v1/videos on Synthorai with model="dreamina-seedance-2-0-fast-260128" to create an asynchronous job, then poll the task — or hold the request open with a Prefer: wait header — until the video URL is ready. No vendor SDK is needed.
How do I get access to Dreamina Seedance 2.0 Fast?
Point your existing OpenAI SDK at base_url="https://synthorai.io/v1", set model="dreamina-seedance-2-0-fast-260128", and you're done. One API key covers every model on the gateway.