seedance-2.0-ultra

Create Video Generation Task

curl --request POST \
  --url https://www.anyfast.ai/v1/video/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "seedance-2.0-ultra",
  "content": [
    {
      "type": "text",
      "text": "A cat playing piano in a sunlit room"
    },
    {
      "type": "image_url",
      "image_url": {
        "url": "https://example.com/reference.jpg"
      },
      "role": "reference_image"
    }
  ],
  "resolution": "720p",
  "generate_audio": true,
  "ratio": "adaptive",
  "duration": 5,
  "tools": [
    {
      "type": "web_search"
    }
  ],
  "watermark": false
}
'

import requests

url = "https://www.anyfast.ai/v1/video/generations"

payload = {
    "model": "seedance-2.0-ultra",
    "content": [
        {
            "type": "text",
            "text": "A cat playing piano in a sunlit room"
        },
        {
            "type": "image_url",
            "image_url": { "url": "https://example.com/reference.jpg" },
            "role": "reference_image"
        }
    ],
    "resolution": "720p",
    "generate_audio": True,
    "ratio": "adaptive",
    "duration": 5,
    "tools": [{ "type": "web_search" }],
    "watermark": False
}
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: 'seedance-2.0-ultra',
    content: [
      {type: 'text', text: 'A cat playing piano in a sunlit room'},
      {
        type: 'image_url',
        image_url: {url: 'https://example.com/reference.jpg'},
        role: 'reference_image'
      }
    ],
    resolution: '720p',
    generate_audio: true,
    ratio: 'adaptive',
    duration: 5,
    tools: [{type: 'web_search'}],
    watermark: false
  })
};

fetch('https://www.anyfast.ai/v1/video/generations', 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://www.anyfast.ai/v1/video/generations",
  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' => 'seedance-2.0-ultra',
    'content' => [
        [
                'type' => 'text',
                'text' => 'A cat playing piano in a sunlit room'
        ],
        [
                'type' => 'image_url',
                'image_url' => [
                                'url' => 'https://example.com/reference.jpg'
                ],
                'role' => 'reference_image'
        ]
    ],
    'resolution' => '720p',
    'generate_audio' => true,
    'ratio' => 'adaptive',
    'duration' => 5,
    'tools' => [
        [
                'type' => 'web_search'
        ]
    ],
    'watermark' => false
  ]),
  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://www.anyfast.ai/v1/video/generations"

	payload := strings.NewReader("{\n  \"model\": \"seedance-2.0-ultra\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"A cat playing piano in a sunlit room\"\n    },\n    {\n      \"type\": \"image_url\",\n      \"image_url\": {\n        \"url\": \"https://example.com/reference.jpg\"\n      },\n      \"role\": \"reference_image\"\n    }\n  ],\n  \"resolution\": \"720p\",\n  \"generate_audio\": true,\n  \"ratio\": \"adaptive\",\n  \"duration\": 5,\n  \"tools\": [\n    {\n      \"type\": \"web_search\"\n    }\n  ],\n  \"watermark\": false\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://www.anyfast.ai/v1/video/generations")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"seedance-2.0-ultra\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"A cat playing piano in a sunlit room\"\n    },\n    {\n      \"type\": \"image_url\",\n      \"image_url\": {\n        \"url\": \"https://example.com/reference.jpg\"\n      },\n      \"role\": \"reference_image\"\n    }\n  ],\n  \"resolution\": \"720p\",\n  \"generate_audio\": true,\n  \"ratio\": \"adaptive\",\n  \"duration\": 5,\n  \"tools\": [\n    {\n      \"type\": \"web_search\"\n    }\n  ],\n  \"watermark\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://www.anyfast.ai/v1/video/generations")

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\": \"seedance-2.0-ultra\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"A cat playing piano in a sunlit room\"\n    },\n    {\n      \"type\": \"image_url\",\n      \"image_url\": {\n        \"url\": \"https://example.com/reference.jpg\"\n      },\n      \"role\": \"reference_image\"\n    }\n  ],\n  \"resolution\": \"720p\",\n  \"generate_audio\": true,\n  \"ratio\": \"adaptive\",\n  \"duration\": 5,\n  \"tools\": [\n    {\n      \"type\": \"web_search\"\n    }\n  ],\n  \"watermark\": false\n}"

response = http.request(request)
puts response.read_body

{
  "id": "cgt-20260312231129-7db6s",
  "task_id": "cgt-20260312231129-7db6s",
  "object": "video",
  "model": "seedance-2.0-ultra",
  "status": "",
  "progress": 0,
  "created_at": 1773328294
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

POST

video

generations

Create Video Generation Task

curl --request POST \
  --url https://www.anyfast.ai/v1/video/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "seedance-2.0-ultra",
  "content": [
    {
      "type": "text",
      "text": "A cat playing piano in a sunlit room"
    },
    {
      "type": "image_url",
      "image_url": {
        "url": "https://example.com/reference.jpg"
      },
      "role": "reference_image"
    }
  ],
  "resolution": "720p",
  "generate_audio": true,
  "ratio": "adaptive",
  "duration": 5,
  "tools": [
    {
      "type": "web_search"
    }
  ],
  "watermark": false
}
'

import requests

url = "https://www.anyfast.ai/v1/video/generations"

payload = {
    "model": "seedance-2.0-ultra",
    "content": [
        {
            "type": "text",
            "text": "A cat playing piano in a sunlit room"
        },
        {
            "type": "image_url",
            "image_url": { "url": "https://example.com/reference.jpg" },
            "role": "reference_image"
        }
    ],
    "resolution": "720p",
    "generate_audio": True,
    "ratio": "adaptive",
    "duration": 5,
    "tools": [{ "type": "web_search" }],
    "watermark": False
}
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: 'seedance-2.0-ultra',
    content: [
      {type: 'text', text: 'A cat playing piano in a sunlit room'},
      {
        type: 'image_url',
        image_url: {url: 'https://example.com/reference.jpg'},
        role: 'reference_image'
      }
    ],
    resolution: '720p',
    generate_audio: true,
    ratio: 'adaptive',
    duration: 5,
    tools: [{type: 'web_search'}],
    watermark: false
  })
};

fetch('https://www.anyfast.ai/v1/video/generations', 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://www.anyfast.ai/v1/video/generations",
  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' => 'seedance-2.0-ultra',
    'content' => [
        [
                'type' => 'text',
                'text' => 'A cat playing piano in a sunlit room'
        ],
        [
                'type' => 'image_url',
                'image_url' => [
                                'url' => 'https://example.com/reference.jpg'
                ],
                'role' => 'reference_image'
        ]
    ],
    'resolution' => '720p',
    'generate_audio' => true,
    'ratio' => 'adaptive',
    'duration' => 5,
    'tools' => [
        [
                'type' => 'web_search'
        ]
    ],
    'watermark' => false
  ]),
  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://www.anyfast.ai/v1/video/generations"

	payload := strings.NewReader("{\n  \"model\": \"seedance-2.0-ultra\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"A cat playing piano in a sunlit room\"\n    },\n    {\n      \"type\": \"image_url\",\n      \"image_url\": {\n        \"url\": \"https://example.com/reference.jpg\"\n      },\n      \"role\": \"reference_image\"\n    }\n  ],\n  \"resolution\": \"720p\",\n  \"generate_audio\": true,\n  \"ratio\": \"adaptive\",\n  \"duration\": 5,\n  \"tools\": [\n    {\n      \"type\": \"web_search\"\n    }\n  ],\n  \"watermark\": false\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://www.anyfast.ai/v1/video/generations")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"seedance-2.0-ultra\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"A cat playing piano in a sunlit room\"\n    },\n    {\n      \"type\": \"image_url\",\n      \"image_url\": {\n        \"url\": \"https://example.com/reference.jpg\"\n      },\n      \"role\": \"reference_image\"\n    }\n  ],\n  \"resolution\": \"720p\",\n  \"generate_audio\": true,\n  \"ratio\": \"adaptive\",\n  \"duration\": 5,\n  \"tools\": [\n    {\n      \"type\": \"web_search\"\n    }\n  ],\n  \"watermark\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://www.anyfast.ai/v1/video/generations")

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\": \"seedance-2.0-ultra\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"A cat playing piano in a sunlit room\"\n    },\n    {\n      \"type\": \"image_url\",\n      \"image_url\": {\n        \"url\": \"https://example.com/reference.jpg\"\n      },\n      \"role\": \"reference_image\"\n    }\n  ],\n  \"resolution\": \"720p\",\n  \"generate_audio\": true,\n  \"ratio\": \"adaptive\",\n  \"duration\": 5,\n  \"tools\": [\n    {\n      \"type\": \"web_search\"\n    }\n  ],\n  \"watermark\": false\n}"

response = http.request(request)
puts response.read_body

{
  "id": "cgt-20260312231129-7db6s",
  "task_id": "cgt-20260312231129-7db6s",
  "object": "video",
  "model": "seedance-2.0-ultra",
  "status": "",
  "progress": 0,
  "created_at": 1773328294
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

model

enum<string>

required

Model ID

Available options:

seedance-2.0-ultra

Example:

"seedance-2.0-ultra"

content

object[]

required

Input content array for video generation. Supports text, images, videos, and audio in various combinations:

Text only
Text (optional) + Image(s)
Text (optional) + Video(s)
Text (optional) + Image + Audio
Text (optional) + Image + Video
Text (optional) + Video + Audio
Text (optional) + Image + Video + Audio

Show child attributes

Example:

[
  {
    "type": "text",
    "text": "A cat playing piano in a sunlit room"
  },
  {
    "type": "image_url",
    "image_url": {
      "url": "https://example.com/reference.jpg"
    },
    "role": "reference_image"
  }
]

resolution

enum<string>

required

Output video resolution. Required for Ultra.

Available options:

720p,

1080p,

2k

Example:

"720p"

generate_audio

boolean

default:true

Generate synchronized audio with the video.

true — Video includes auto-generated voice, sound effects, and background music
false — Silent video

ratio

enum<string>

default:adaptive

Output aspect ratio. adaptive automatically selects the best ratio based on input.

Available options:

16:9,

4:3,

1:1,

3:4,

9:16,

21:9,

adaptive

duration

integer

default:5

Video duration in seconds (integer, 4–15).

Required range: 4 <= x <= 15

tools

object[]

Tools for the model to use. Currently supports web search (text-to-video only).

Show child attributes

watermark

boolean

default:false

Add watermark to the generated video.

Response

Video generation task created

string

Task ID for polling

Example:

"cgt-20260312231129-7db6s"

task_id

string

Task ID (same as id)

Example:

"cgt-20260312231129-7db6s"

object

string

Example:

"video"

model

string

Example:

"seedance-2.0-ultra"

status

string

Initially empty

Example:

""

progress

integer

Example:

0

created_at

integer

Unix timestamp

Example:

1773328294

seedance-2.0-mini seedance-2.0-fast

Overview

Native Compatible Endpoints

Model APIs

seedance-2.0-ultra

Authorizations

Body

Response