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02
Examples
Real outputs from the public examples of this model on Replicate, with the prompt and settings that produced them. They were not generated live on this page.
Prompt
a woman walks in the park
Length: 0:05
Settings
aspect_ratio
16:9
resolution
720p
duration
5
fps
24
Input
Prompt
a woman lifts up a poster, there is a gentle breeze
Length: 0:05
Settings
aspect_ratio
16:9
resolution
720p
duration
5
fps
24
Prompt
[Low-angle tracking shot] A small fox trots nimbly through the forest. Sunlight filters down through gaps in the leaves. The fox stops, alertly perking up its ears. [Cut to] Spotting danger, it quickly turns and flees, with the camera chasing after the fox as it dodges through the dense woods.
Length: 0:08
Settings
aspect_ratio
16:9
resolution
720p
duration
10
fps
24
Example prompts
Examples from the Railwail catalog. They were not generated live on this page.
Abstract
Length: 0:05
Colorful liquid flowing in slow motion
03
About Seedance Lite
TL;DRAs of September 23, 2026
Seedance Lite is a model by ByteDance in the Video generation category. On Railwail, Seedance Lite costs $0.0432 per second of video. Depending on the settings, the price ranges from $0.0216/s to $0.0864/s. A default run of 5 seconds costs $0.216. Supported aspect ratios: 16:9, 9:16, and 1:1. Possible lengths: 5 or 10 s.
Background
About ByteDance Seed
Founded 2023 · Beijing, China
ByteDance Seed is the foundation-model research arm of ByteDance, the company behind TikTok, Douyin and CapCut. Formed in 2023 (initially called 'Doubao Foundation Model' / 'Skylark', renamed Seed in 2024), the team is led by Wu Yonghui and ships the Doubao consumer assistant, the Skylark / Doubao LLM family, and the Seedance and Seedream video and image models. Seedance launched in early 2025 with two tiers: Seedance Pro for high-fidelity creative work and Seedance Lite for fast, high-volume generation. The lite tier targets short-form social workflows on TikTok-adjacent surfaces and CapCut integrations, where latency and cost are paramount.
Seedance Lite is the speed-tier variant of ByteDance's Seedance text-to-video and image-to-video model. It is a closed Diffusion Transformer operating on a 3D spatio-temporal latent, distilled from Seedance Pro via consistency-style training and quantization to compress the diffusion sampler into far fewer denoising steps. Conditioning uses a bilingual Chinese/English text encoder (based on ByteDance's Doubao / Skylark LLM family) and image embeddings for first-frame conditioning. Output is 5-second clips at 720p / 24 fps. The lite tier is designed to be deployed at very high volume across ByteDance's consumer surfaces (Doubao app, CapCut, TikTok creator tools in China) where per-clip cost matters more than maximum fidelity. The base Seedance corpus is closed but ByteDance hold privileged access to large-scale TikTok / Douyin video data which is presumed to inform training.
Parameters
Undisclosed
Capabilities
Speed-tier distilled video model for high-volume use
Text-to-video and image-to-video
5-second clips at 720p / 24 fps
Bilingual Chinese/English prompts
Low per-clip cost and latency
Tight integration with CapCut and Doubao consumer surfaces
Director-style camera control vocabulary (limited)
Available via Doubao API and CapCut creator tools
Best for: high-volume social-media production, rapid iteration.
Training & license
Closed corpus including licensed video, web video and platform data (TikTok / Douyin, under ByteDance terms); bilingual dense captions; exact size undisclosed.
License: Proprietary commercial licence via Doubao / ByteDance Seed terms.
Safety testing: NSFW, CSAM, public-figure and politically sensitive content filters in line with CAC algorithmic-content rules; stricter on Chinese surfaces.
Known limitations
5-second clip limit
Quality below Seedance Pro at higher resolutions
No native audio
Heavy political and public-figure moderation in China
curl https://railwail.com/api/v1/videos/generations \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seedance-lite",
"prompt": "A slow drone shot over a misty pine forest at sunrise"
}'
# Response: {"job_id": "...", "status": "queued", ...}
# Poll until status is completed, failed or cancelled:
curl https://railwail.com/api/v1/jobs/JOB_ID \
-H "Authorization: Bearer $RAILWAIL_API_KEY"
import os
import time
import requests
API = "https://railwail.com/api/v1"
headers = {"Authorization": f"Bearer {os.environ['RAILWAIL_API_KEY']}"}
job = requests.post(
f"{API}/videos/generations",
headers=headers,
json={
"model": "seedance-lite",
"prompt": "A slow drone shot over a misty pine forest at sunrise",
},
).json()
while True:
status = requests.get(f"{API}/jobs/{job['job_id']}", headers=headers).json()
if status["status"] in ("completed", "failed", "cancelled"):
break
time.sleep(5)
print(status["status"], status.get("output_url"))
const API = "https://railwail.com/api/v1";
const headers = {
Authorization: `Bearer ${process.env.RAILWAIL_API_KEY}`,
"Content-Type": "application/json",
};
const job = await fetch(`${API}/videos/generations`, {
method: "POST",
headers,
body: JSON.stringify({
model: "seedance-lite",
prompt: "A slow drone shot over a misty pine forest at sunrise"
}),
}).then((r) => r.json());
let status;
do {
await new Promise((r) => setTimeout(r, 5000));
status = await fetch(`${API}/jobs/${job.job_id}`, { headers }).then((r) => r.json());
} while (!["completed", "failed", "cancelled"].includes(status.status));
console.log(status.status, status.output_url);
Seedance Lite is a model by ByteDance in the Video generation category. On Railwail you can call it with an API key through the Railwail API.
How much does Seedance Lite cost on Railwail?
On Railwail, Seedance Lite costs $0.0432 per second of video. Depending on the settings, the price ranges from $0.0216/s to $0.0864/s. A default run of 5 seconds costs $0.216. The price is known before the run starts. Usage is paid from prepaid credits; 1 credit equals $0.01.
Which settings does Seedance Lite support?
According to its input schema, Seedance Lite knows these parameters: prompt, duration (5 or 10), end_image, start_image, and aspect_ratio (16:9, 9:16, or 1:1).
How fast is Seedance Lite?
There are not enough measured runs of Seedance Lite on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is Seedance Lite better than Google Veo 3.1?
That depends on the task. Seedance Lite (ByteDance) and Google Veo 3.1 (Google DeepMind) are both models in the Video generation category. The comparison page shows their prices and specifications side by side.
Create a Railwail API key and send your request with the model ID seedance-lite. Code examples for curl, Python and JavaScript are in the API section of this page.
