curl --request POST \
--url https://api.apiyi.com/seedance/api/v3/contents/generations/tasks \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "doubao-seedance-2-0-fast-260128",
"content": [
{
"type": "text",
"text": "无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感"
}
]
}
'import requests
url = "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks"
payload = {
"model": "doubao-seedance-2-0-fast-260128",
"content": [
{
"type": "text",
"text": "无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感"
}
]
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
model: 'doubao-seedance-2-0-fast-260128',
content: [{type: 'text', text: '无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感'}]
})
};
fetch('https://api.apiyi.com/seedance/api/v3/contents/generations/tasks', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'model' => 'doubao-seedance-2-0-fast-260128',
'content' => [
[
'type' => 'text',
'text' => '无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks"
payload := strings.NewReader("{\n \"model\": \"doubao-seedance-2-0-fast-260128\",\n \"content\": [\n {\n \"type\": \"text\",\n \"text\": \"无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.apiyi.com/seedance/api/v3/contents/generations/tasks")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"model\": \"doubao-seedance-2-0-fast-260128\",\n \"content\": [\n {\n \"type\": \"text\",\n \"text\": \"无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.apiyi.com/seedance/api/v3/contents/generations/tasks")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"model\": \"doubao-seedance-2-0-fast-260128\",\n \"content\": [\n {\n \"type\": \"text\",\n \"text\": \"无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"id": "cgt-20260606160057-6bbjd"
}Seedance 2.0 视频生成 API 参考
Seedance 2.0 视频生成 API 参考与在线调试:文生视频 / 首尾帧 / 首帧 / 多模态参考生视频,异步任务式端点,含完整轮询与下载代码。
curl --request POST \
--url https://api.apiyi.com/seedance/api/v3/contents/generations/tasks \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "doubao-seedance-2-0-fast-260128",
"content": [
{
"type": "text",
"text": "无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感"
}
]
}
'import requests
url = "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks"
payload = {
"model": "doubao-seedance-2-0-fast-260128",
"content": [
{
"type": "text",
"text": "无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感"
}
]
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
model: 'doubao-seedance-2-0-fast-260128',
content: [{type: 'text', text: '无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感'}]
})
};
fetch('https://api.apiyi.com/seedance/api/v3/contents/generations/tasks', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'model' => 'doubao-seedance-2-0-fast-260128',
'content' => [
[
'type' => 'text',
'text' => '无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks"
payload := strings.NewReader("{\n \"model\": \"doubao-seedance-2-0-fast-260128\",\n \"content\": [\n {\n \"type\": \"text\",\n \"text\": \"无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.apiyi.com/seedance/api/v3/contents/generations/tasks")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"model\": \"doubao-seedance-2-0-fast-260128\",\n \"content\": [\n {\n \"type\": \"text\",\n \"text\": \"无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.apiyi.com/seedance/api/v3/contents/generations/tasks")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"model\": \"doubao-seedance-2-0-fast-260128\",\n \"content\": [\n {\n \"type\": \"text\",\n \"text\": \"无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"id": "cgt-20260606160057-6bbjd"
}Bearer sk-your-api-key(令牌须勾选 SeeDance2 分组),填好 model / content 后发起请求。提交成功返回任务 id,后续轮询与下载见下方代码示例。content 数组区分模式。模型选型、定价、分辨率像素表、FAQ 见 Seedance 2.0 概览。- 路径前缀是
/seedance/api/v3,不要漏掉/api,也不要用/v1/videos - 令牌必须勾选
SeeDance2分组,否则报「该模型无可用渠道」 generate_audio默认 true(输出带声音),不需要请显式传false- Python requests 需加请求头
"Accept-Encoding": "identity",否则可能报 gzip 解码错误,或响应体被截断成非法 JSON(如开头丢失{",只剩id":"cgt-xxx"}),甚至间歇性 400 - 成功状态是
succeeded(不是completed),视频地址在content.video_url,24 小时过期
代码示例
curl -X POST "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks" \
-H "Authorization: Bearer sk-your-api-key" \
-H "Content-Type: application/json" \
-d '{
"model": "doubao-seedance-2-0-fast-260128",
"content": [
{"type": "text", "text": "无人机航拍视角飞越秋天的山谷,金黄色的森林和蜿蜒的河流,电影感"}
],
"resolution": "720p",
"ratio": "16:9",
"duration": 5,
"generate_audio": false
}'
# 返回:{"id":"cgt-2026xxxx-xxxxx"},拿 id 轮询查询接口
import time
import requests
BASE = "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks"
HEADERS = {
"Authorization": "Bearer sk-your-api-key",
"Content-Type": "application/json",
# 必加:网关 gzip 头与实际编码不符,缺了会报 gzip 解码错误,
# 或响应体被截断成非法 JSON(如开头丢 {",只剩 id":"cgt-xxx"}),甚至间歇 400
"Accept-Encoding": "identity",
}
# 1. 创建任务
body = {
"model": "doubao-seedance-2-0-fast-260128",
"content": [
{"type": "text", "text": "海浪拍打礁石,夕阳把海面染成金色,慢镜头,氛围宁静"}
],
"resolution": "720p",
"ratio": "16:9",
"duration": 5,
# "generate_audio": False, # 默认 True;不要声音时取消注释
# "seed": 12345, # 固定随机性,可复现类似结果
}
task_id = requests.post(BASE, json=body, headers=HEADERS, timeout=60).json()["id"]
print("task_id:", task_id)
# 2. 轮询直到终态(succeeded / failed / expired)
while True:
time.sleep(20)
task = requests.get(f"{BASE}/{task_id}", headers=HEADERS, timeout=30).json()
status = task.get("status")
print("status:", status)
if status in ("succeeded", "failed", "expired"):
break
# 3. 下载视频(URL 24 小时过期,成功后立即转存)
if status == "succeeded":
video_url = task["content"]["video_url"] # 注意:在 content 下,不在顶层
print("tokens:", task["usage"]["completion_tokens"])
with requests.get(video_url, stream=True, timeout=300) as r:
r.raise_for_status()
with open(f"{task_id}.mp4", "wb") as f:
for chunk in r.iter_content(chunk_size=1 << 20):
f.write(chunk)
print(f"已保存 {task_id}.mp4")
else:
print("任务未成功:", task.get("error"))
# 首尾帧:2 张图,role 必填;与参考图模式互斥
body_first_last = {
"model": "doubao-seedance-2-0-260128",
"content": [
{"type": "text", "text": "画面从第一帧平滑过渡到最后一帧,镜头缓慢运动"},
{"type": "image_url", "image_url": {"url": "https://example.com/first.jpg"},
"role": "first_frame"},
{"type": "image_url", "image_url": {"url": "https://example.com/last.jpg"},
"role": "last_frame"},
],
"resolution": "720p",
"ratio": "adaptive", # 按首帧图片比例自动适配,避免裁剪
"duration": 5,
}
# 多模态参考:0~9 参考图 + 0~3 参考视频 + 0~3 参考音频(至少 1 图或 1 视频),可生成全新/编辑/延长视频
body_reference = {
"model": "doubao-seedance-2-0-260128",
"content": [
{"type": "text", "text": "以参考图的角色和风格,生成角色在雨夜街头行走的镜头"},
{"type": "image_url", "image_url": {"url": "https://example.com/character.png"},
"role": "reference_image"},
# {"type": "video_url", "video_url": {"url": "..."}, "role": "reference_video"},
# {"type": "audio_url", "audio_url": {"url": "..."}, "role": "reference_audio"},
],
"resolution": "720p",
"ratio": "16:9",
"duration": 5,
}
# 图片也支持 Base64(data:image/png;base64,xxx)与平台素材 ID(asset://xxx)
const BASE = "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks";
const HEADERS = {
"Authorization": "Bearer sk-your-api-key",
"Content-Type": "application/json",
};
// 1. 创建任务
const { id } = await fetch(BASE, {
method: "POST",
headers: HEADERS,
body: JSON.stringify({
model: "doubao-seedance-2-0-fast-260128",
content: [{ type: "text", text: "雪山脚下的湖泊倒映着星空,延时摄影效果" }],
resolution: "720p",
ratio: "9:16", // 竖屏与横屏同价
duration: 5,
}),
}).then(r => r.json());
console.log("task_id:", id);
// 2. 轮询直到终态
let task;
do {
await new Promise(r => setTimeout(r, 20000));
task = await fetch(`${BASE}/${id}`, { headers: HEADERS }).then(r => r.json());
console.log("status:", task.status);
} while (!["succeeded", "failed", "expired"].includes(task.status));
// 3. 视频直链(24 小时过期,请立即转存)
if (task.status === "succeeded") console.log(task.content.video_url);
curl "https://api.apiyi.com/seedance/api/v3/contents/generations/tasks/cgt-2026xxxx-xxxxx" \
-H "Authorization: Bearer sk-your-api-key"
参数说明速查
| 参数 | 类型 | 必填 | 默认 | 说明 |
|---|---|---|---|---|
model | string | ✓ | — | doubao-seedance-2-0-260128(标准版,支持 1080p)/ doubao-seedance-2-0-fast-260128(极速版,最高 720p)/ doubao-seedance-2-0-mini-260615(轻量版,最高 720p,单价约标准版一半)。写纯 ID,不要带 ep- 前缀 |
content | array | ✓ | — | 输入信息数组,见下方「生成模式」 |
resolution | string | 720p | 480p / 720p / 1080p(1080p 仅标准版,fast 与 mini 最高 720p) | |
ratio | string | adaptive | 16:9 / 4:3 / 1:1 / 3:4 / 9:16 / 21:9 / adaptive;同档位全比例同价 | |
duration | int | 5 | 4–15 整数秒;-1 模型智能选时长(按实际产出计费) | |
generate_audio | bool | true | 是否生成同步音频(人声/音效/配乐,单声道) | |
watermark | bool | false | 是否加「AI 生成」水印 | |
seed | int | -1 | [-1, 2^32-1];相同 seed 生成类似(不保证一致)结果 | |
return_last_frame | bool | false | 返回尾帧 png(无水印),用于多段视频接力 | |
execution_expires_after | int | 172800 | 任务过期阈值(秒),范围 [3600, 259200] |
frames、camera_fixed、service_tier(仅在线推理)参数——这些是 Seedance 1.x 的能力,传入会被忽略或报错。生成模式(content 组合)
| 模式 | content 组成 | role 取值 |
|---|---|---|
| 文生视频 | 1 个 text | — |
| 图生视频-首尾帧 | text(可选)+ 2 个 image_url | 必填 first_frame / last_frame |
| 图生视频-首帧 | text(可选)+ 1 个 image_url | first_frame 或不填 |
| 多模态参考生视频 | text + 0–9 个 image_url(+ 可选 0–3 个 video_url / 0–3 个 audio_url,至少 1 图或 1 视频) | reference_image / reference_video / reference_audio |
data:image/png;base64,...)、素材 ID(asset://...);不支持含真人人脸的输入素材。音频需与至少 1 个图片或视频一起传。素材引用的端到端代码(上传入库 → asset:// 出片 → 下载)见 素材引用实战。
响应格式
创建成功只返回任务 ID(不是视频本身):{ "id": "cgt-20260606160057-6bbjd" }
GET /seedance/api/v3/contents/generations/tasks/{id},成功后的完整响应(实测样本):
{
"id": "cgt-20260606160057-6bbjd",
"model": "doubao-seedance-2-0-fast-260128",
"status": "succeeded",
"content": {
"video_url": "https://ark-acg-cn-beijing.tos-cn-beijing.volces.com/....mp4?X-Tos-Expires=86400&..."
},
"usage": { "completion_tokens": 108900, "total_tokens": 108900 },
"created_at": 1780732857,
"updated_at": 1780732991,
"seed": 97151,
"resolution": "720p",
"ratio": "16:9",
"duration": 5,
"framespersecond": 24,
"generate_audio": true,
"draft": false
}
- 视频地址在
content.video_url,不在顶层;签名直链 24 小时过期,成功后立即下载转存 - 状态机:
queued → running → succeeded / failed / expired,成功是succeeded - 下载视频时直接 GET 直链即可,不要带
Authorization头
usage.completion_tokens 即计费 token 数,满足 token ≈ 时长 × 宽 × 高 × 24 / 1024(实测偏差少于 0.1%)。duration: -1 或 ratio: adaptive 时,实际时长与比例以响应中的 duration / ratio 字段为准。授权
在 API易控制台获取的 API Key(令牌须勾选 SeeDance2 分组)
请求体
模型 ID(写纯 ID,不要带 ep- 前缀)。标准版支持 1080p;fast 最高 720p,生成更快,站内同价
doubao-seedance-2-0-260128, doubao-seedance-2-0-fast-260128 "doubao-seedance-2-0-fast-260128"
输入信息数组。文生视频只放 1 个 text;图生视频追加 image_url(role: first_frame / last_frame);多模态参考生视频追加 0-9 个 image_url(role: reference_image),可再加 0-3 个 video_url / 0-3 个 audio_url(至少 1 图或 1 视频,支持生成全新/编辑/延长视频)。三种图生场景互斥
Show child attributes
Show child attributes
分辨率档位(定义像素面积,同档位全比例同价)。fast 不支持 1080p
480p, 720p, 1080p 宽高比。adaptive 按输入自动适配(图生视频推荐,避免裁剪);实际比例见查询响应 ratio 字段
16:9, 4:3, 1:1, 3:4, 9:16, 21:9, adaptive 视频时长(整数秒),4-15;或 -1 由模型智能选择(按实际产出计费)。费用与时长线性相关
5
是否生成与画面同步的音频(人声/音效/背景音乐,单声道)。注意默认 true,不需要声音时显式传 false
是否在右下角加「AI 生成」水印
随机种子,[-1, 2^32-1]。相同 seed 生成类似(不保证一致)结果;-1 表示随机
是否返回尾帧 png(无水印、与视频同宽高),用于把尾帧作为下一段任务首帧、量产连续视频
任务过期阈值(秒),超时任务标记为 expired。范围 [3600, 259200]
响应
任务创建成功,返回任务 ID(用于轮询查询)
任务创建成功响应。拿 id 轮询 GET /seedance/api/v3/contents/generations/tasks/{id};任务成功后视频地址在 content.video_url(24 小时过期),计费 token 在 usage.completion_tokens
视频生成任务 ID(保存 7 天)
"cgt-20260606160057-6bbjd"
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