Seedance API
Text and image-to-video with native audio-video joint synthesis, up to 15-second multi-shot clips.
curl -X POST https://runapi.ai/api/v1/seedance/text_to_video \
-H "Authorization: Bearer $RUNAPI_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "seedance-v1-lite",
"prompt": "Generate a 10-second product reveal video: a smartphone emerges from smoke with cinematic lighting and ambient bass."
}'import { SeedanceClient } from "@runapi.ai/seedance";
const client = new SeedanceClient();
const result = await client.textToVideo.run({
model: "seedance-v1-lite",
prompt: "Generate a 10-second product reveal video: a smartphone emerges from smoke with cinematic lighting and ambient bass.",
});<?php
require __DIR__ . "/vendor/autoload.php";
use RunApi\Seedance\SeedanceClient;
$client = new SeedanceClient();
$result = $client->textToVideo->run([
'model' => 'seedance-v1-lite',
'prompt' => 'Generate a 10-second product reveal video: a smartphone emerges from smoke with cinematic lighting and ambient bass.',
]);require "runapi/seedance"
client = RunApi::Seedance::Client.new
result = client.text_to_video.run(
model: "seedance-v1-lite",
prompt: "Generate a 10-second product reveal video: a smartphone emerges from smoke with cinematic lighting and ambient bass."
)npx skills add runapi-ai/seedance -g# Claude Code
claude mcp add runapi -s user -- npx -y @runapi.ai/mcp
# Codex
codex plugin install runapi-mcp@agents
# Cursor / Windsurf / VS Code
npx @runapi.ai/mcp init cursorSeedance is Bytedance's video generation model featuring audio-video joint synthesis and support for multi-shot clips up to 15 seconds. It maintains temporal coherence and scene continuity across generated sequences.
- 多個變體，對應不同速度／品質層級
- Model skill 包含文件、schema 與 setup 備註
- 支援 app-focused coding workflows
- 生成失敗不收費
比較所有 API 變體
為 app 開發安裝 Seedance skill
將模型文件、schema、價格備註與 setup 步驟載入 coding workspace。
# Install the model skill for app development workflows
npx skills add runapi-ai/seedance -gInstall the Seedance skill for this app: 1. Add runapi-ai/seedance with the skills installer. 2. Load SKILL.md in this workspace. 3. Use its docs, schemas, pricing notes, and setup steps when adding model features. 4. Confirm the install path when done.
從 model skill 到第一次結果，只需四步
選擇模型
挑選符合輸出類型、品質門檻與延遲目標的模型與變體。
設定
設定 RunAPI key，並在 coding workspace 安裝 model skill。
開發
使用 skill 指引，在你的 app 內加入模型功能。
接收
透過 task ID 查詢、在支援時串流，或處理 webhook callback。
Seedance API 是甚麼？
Seedance is Bytedance's Seed team video model, supporting text-to-video and image-to-video with native audio synthesis. Through RunAPI, all Seedance variants share unified API access.
為何透過 RunAPI 使用 Seedance API
一個驗證，對應所有 provider
一組 RunAPI key 即可解鎖整個 catalog。無需分開帳戶，亦無需為每個整合輪換密鑰。
統一定價與計費
按次以 USD 收費，每月結算。失敗的生成不會收費。
內含 schema 的 skill
型別化 schema 與 setup 備註打包在 model skill 內，讓實作從正確契約開始。
常見問題
Does Seedance generate audio with the video?
Yes — starting with v1.5-pro, Seedance supports audio-video co-generation including dialogue, sound effects, and ambient sound in a single pass.
How long can generated clips be?
Up to 15 seconds per generation with Seedance 2.0. Earlier versions support up to 12 seconds.
What languages does lip-sync support?
唇形同步支援多種語言，包括英文、中文、日文同韓文。
What is multi-shot storytelling?
Seedance 2.0 accepts up to 9 reference images, 3 video refs, and 3 audio refs to generate coherent multi-shot sequences with scene continuity.
How do lite, pro, and fast variants compare?
Lite 最平，適合社交內容；Pro 提供電影級畫質；兩者都支援 480p、720p 同 1080p。v1 Pro Fast 變體以約平 49% 嘅成本達到同 Pro 一樣嘅 1080p，而 Seedance 2.0 Fast 更平，但最高只到 720p。
我應該先用邊個版本？
先選最平而且符合你質素要求的版本。大多數團隊會先用快速版本，之後再升級到 pro 用於正式生產。
有免費方案嗎？
新帳戶可獲得每個模型的首次呼叫免費。之後按次收費。
你哋支援串流結果嗎？
如有提供串流，RunAPI 會端到端串流。
失敗會點樣收費？
生成失敗不會收費。
輸出有快取嗎？
已生成輸出會儲存，並可按任務 ID 取回。輸入內容不會快取。
可以商業使用嗎？
可以——除非模型授權明確限制，否則每個版本都包括商業使用。相關限制會在版本頁面列明。
限流點樣計？
每個密鑰的限流會跟使用等級而提升。最新限制請參考定價頁。
可以在邊度報告問題？
可以在公開 GitHub repo 開 issue，或者電郵支援。