kling-video-o1 - AnyFast

Kling O1 uses the Kling Legacy Omni Video API. One creation endpoint supports text-to-video, image and element references, video editing, video continuation, and first/end-frame generation.

Set model_name to kling-o1. It supports 3–10 seconds, 720p (std), and 1080p (pro); multi-shot generation, 4K, and native audio generation are not supported.

Create task

POST /kling/v1/videos/omni-video

cURL

curl --request POST \
  --url https://www.anyfast.ai/kling/v1/videos/omni-video \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "model_name": "kling-o1",
    "prompt": "A sailboat crosses golden morning fog as an aerial camera slowly moves forward",
    "mode": "pro",
    "aspect_ratio": "16:9",
    "duration": "6",
    "sound": "off"
  }'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Data exchange format. Use application/json.

Request body

string

required

Model name. Use kling-o1.

string

required

Generation instruction, up to 2,500 characters.

string

default:"std"

Output mode. std is 720p and pro is 1080p. Kling O1 does not support 4k.

string

default:"16:9"

Output aspect ratio: 16:9, 9:16, or 1:1. Required without a first-frame or video reference.

string

default:"5"

Output duration from 3 to 10 seconds.

string

default:"off"

Kling O1 does not support native audio generation. Use off; it is required with video input.

object

Platform watermark configuration.

boolean

default:false

Add the platform watermark.

Images support JPG, JPEG, and PNG, up to 10 MB each, at least 300 px per side, and a 1:2.5–2.5:1 aspect ratio. Videos support MP4 and MOV, at most one file up to 200 MB, at least 3 seconds, 720–2160 px, 24–60 fps, and a 1:2.5–2.5:1 aspect ratio.

Create response

200

{
  "id": "860260753860210752",
  "task_id": "860260753860210752",
  "object": "video",
  "model": "kling-video-o1",
  "status": "queued",
  "progress": 0,
  "created_at": 1773130665
}

string

AnyFast task ID.

string

Task ID, equal to id.

string

Always video.

string

Model used for the task.

string

Initial task status, normally queued.

integer

Initial progress.

integer

Creation Unix timestamp.

Create task

POST /kling/v1/videos/omni-video

cURL

curl --request POST \
  --url https://www.anyfast.ai/kling/v1/videos/omni-video \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "model_name": "kling-o1",
    "prompt": "The person in <<<image_1>>> wears the outfit from <<<element_1>>> and enters a cafe",
    "image_list": [{"image_url": "https://example.com/character.png"}],
    "element_list": [{"element_id": 123456789}],
    "mode": "pro",
    "aspect_ratio": "16:9",
    "duration": "5",
    "sound": "off"
  }'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Data exchange format. Use application/json.

Request body

string

required

Model name. Use kling-o1.

string

required

Instruction up to 2,500 characters. Reference inputs as <<<image_1>>> and <<<element_1>>> in array order.

object[]

Reference images. Images plus multi-image element images are limited to seven without a reference video.

string

required

Public image URL or raw Base64 without a data URI prefix.

object[]

Reusable Legacy elements.

integer

required

Element ID returned by the Legacy Element Management API.

string

default:"std"

Output mode. std is 720p and pro is 1080p. Kling O1 does not support 4k.

string

default:"16:9"

Output aspect ratio: 16:9, 9:16, or 1:1. Required without a first-frame or video reference.

string

default:"5"

Output duration from 3 to 10 seconds.

string

default:"off"

Kling O1 does not support native audio generation. Use off; it is required with video input.

object

Platform watermark configuration.

boolean

default:false

Add the platform watermark.

Create response

200

{
  "id": "860260753860210752",
  "task_id": "860260753860210752",
  "object": "video",
  "model": "kling-video-o1",
  "status": "queued",
  "progress": 0,
  "created_at": 1773130665
}

string

AnyFast task ID.

string

Task ID, equal to id.

string

Always video.

string

Model used for the task.

string

Initial task status, normally queued.

integer

Initial progress.

integer

Creation Unix timestamp.

Create task

POST /kling/v1/videos/omni-video

cURL

curl --request POST \
  --url https://www.anyfast.ai/kling/v1/videos/omni-video \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "model_name": "kling-o1",
    "prompt": "Change the weather in <<<video_1>>> to snow and apply a cinematic color grade",
    "video_list": [{
      "video_url": "https://example.com/source.mp4",
      "refer_type": "base",
      "keep_original_sound": "yes"
    }],
    "mode": "pro",
    "sound": "off"
  }'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Data exchange format. Use application/json.

Request body

string

required

Model name. Use kling-o1.

string

required

Editing instruction up to 2,500 characters. Reference the source as <<<video_1>>>.

Exactly one source video for this workflow.

Public MP4 or MOV URL. Base64 video input is not supported.

Use base for source-video editing.

Use yes to preserve source audio or no to discard it.

string

default:"std"

Output mode. std is 720p and pro is 1080p. Kling O1 does not support 4k.

string

default:"5"

Not supported for source-video editing; output follows the source-video duration.

string

default:"off"

Kling O1 does not support native audio generation. Use off; it is required with video input.

object

Platform watermark configuration.

boolean

default:false

Add the platform watermark.

Create response

200

{
  "id": "860260753860210752",
  "task_id": "860260753860210752",
  "object": "video",
  "model": "kling-video-o1",
  "status": "queued",
  "progress": 0,
  "created_at": 1773130665
}

string

AnyFast task ID.

string

Task ID, equal to id.

string

Always video.

string

Model used for the task.

string

Initial task status, normally queued.

integer

Initial progress.

integer

Creation Unix timestamp.

Create task

POST /kling/v1/videos/omni-video

cURL

curl --request POST \
  --url https://www.anyfast.ai/kling/v1/videos/omni-video \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "model_name": "kling-o1",
    "prompt": "Use the action and camera movement from <<<video_1>>> to generate the immediately following shot",
    "video_list": [{
      "video_url": "https://example.com/reference.mp4",
      "refer_type": "feature",
      "keep_original_sound": "no"
    }],
    "mode": "pro",
    "aspect_ratio": "16:9",
    "duration": "5",
    "sound": "off"
  }'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Data exchange format. Use application/json.

Request body

string

required

Model name. Use kling-o1.

string

required

Instruction up to 2,500 characters. Reference the video as <<<video_1>>>.

Exactly one reference video.

Public MP4 or MOV URL. Base64 video input is not supported.

Use feature for content, motion, style, or camera reference and shot continuation.

Use yes to preserve source audio or no to discard it.

string

default:"std"

Output mode. std is 720p and pro is 1080p. Kling O1 does not support 4k.

string

default:"16:9"

Output aspect ratio: 16:9, 9:16, or 1:1. Required without a first-frame or video reference.

string

default:"5"

Output duration from 3 to 10 seconds.

string

default:"off"

Kling O1 does not support native audio generation. Use off; it is required with video input.

object

Platform watermark configuration.

boolean

default:false

Add the platform watermark.

Create response

200

{
  "id": "860260753860210752",
  "task_id": "860260753860210752",
  "object": "video",
  "model": "kling-video-o1",
  "status": "queued",
  "progress": 0,
  "created_at": 1773130665
}

string

AnyFast task ID.

string

Task ID, equal to id.

string

Always video.

string

Model used for the task.

string

Initial task status, normally queued.

integer

Initial progress.

integer

Creation Unix timestamp.

Create task

POST /kling/v1/videos/omni-video

cURL

curl --request POST \
  --url https://www.anyfast.ai/kling/v1/videos/omni-video \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "model_name": "kling-o1",
    "prompt": "Transition naturally from morning to night while preserving the building structure",
    "image_list": [
      {"image_url": "https://example.com/first.png", "type": "first_frame"},
      {"image_url": "https://example.com/end.png", "type": "end_frame"}
    ],
    "mode": "pro",
    "duration": "6",
    "sound": "off"
  }'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Data exchange format. Use application/json.

Request body

string

required

Model name. Use kling-o1.

string

required

Generation instruction, up to 2,500 characters.

object[]

required

One first-frame image and, optionally, one end-frame image. This workflow cannot use elements.

string

required

Public image URL or raw Base64 without a data URI prefix.

string

required

first_frame or end_frame. An end frame requires a first frame.

string

default:"std"

Output mode. std is 720p and pro is 1080p. Kling O1 does not support 4k.

string

default:"5"

Output duration from 3 to 10 seconds.

string

default:"off"

Kling O1 does not support native audio generation. Use off; it is required with video input.

object

Platform watermark configuration.

boolean

default:false

Add the platform watermark.

Create response

200

{
  "id": "860260753860210752",
  "task_id": "860260753860210752",
  "object": "video",
  "model": "kling-video-o1",
  "status": "queued",
  "progress": 0,
  "created_at": 1773130665
}

string

AnyFast task ID.

string

Task ID, equal to id.

string

Always video.

string

Model used for the task.

string

Initial task status, normally queued.

integer

Initial progress.

integer

Creation Unix timestamp.

Query task

GET /kling/v1/videos/omni-video/{task_id}

cURL

curl --request GET \
  --url https://www.anyfast.ai/kling/v1/videos/omni-video/TASK_ID \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Use application/json.

Path parameters

string

required

Task ID returned by the create endpoint.

Task result

200

{
  "code": 0,
  "message": "",
  "data": {
    "task_id": "asyntask_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
    "task_status": "succeed",
    "task_result": {
      "videos": [{"url": "https://example.com/generated.mp4", "duration": "7"}]
    },
    "created_at": 1773130665000,
    "updated_at": 1773130765000
  }
}

integer

Business status code; 0 indicates success.

string

Response message.

string

Task ID.

string

submitted, processing, succeed, or failed.

string

Failure details when the task fails.

object[]

Generated videos.

string

Temporary video download URL.

string

Actual video duration.

integer

Creation timestamp in milliseconds.

integer

Update timestamp in milliseconds.

Kling removes image and video URLs from task results after 30 days. Download and save generated media before the URLs expire.

Create custom element

POST /kling/v1/general/advanced-custom-elements

cURL

curl --request POST \
  --url https://www.anyfast.ai/kling/v1/general/advanced-custom-elements \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "element_name": "series-character",
    "element_description": "The lead character",
    "reference_type": "image_refer",
    "element_image_list": {
      "frontal_image": "https://example.com/front.png",
      "refer_images": [{"image_url": "https://example.com/side.png"}]
    },
    "tag_list": [{"tag_id": "o_102"}]
  }'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

string

default:"application/json"

required

Use application/json.

Request body

string

required

Element name, up to 20 characters.

string

required

Element description, up to 100 characters.

string

required

image_refer for image references or video_refer for one reference video.

object

Required for image_refer.

string

Front-view image URL or raw Base64 without a data URI prefix.

object[]

One to three alternate-angle or close-up images.

string

Reference image URL or raw Base64.

Required for video_refer.

Exactly one reference video.

Public MP4 or MOV URL; 3–8 seconds, 1080p, 16:9 or 9:16, max 200 MB.

string

Optional voice ID to bind to the element.

Element tags.

o_101 trend, o_102 character, o_103 animal, o_104 item, o_105 costume, o_106 scene, o_107 effect, or o_108 other.

Create response

200

{
  "id": "863121016086724692",
  "task_id": "863121016086724692",
  "object": "video",
  "model": "kling-element",
  "status": "queued",
  "progress": 0,
  "created_at": 1773812605
}

string

AnyFast task ID.

string

Task ID, equal to id.

string

Object type; currently video.

string

Fixed value kling-element.

string

Initial status, normally queued.

integer

Task progress from 0 to 100.

integer

Creation Unix timestamp.

Query custom element

GET /kling/v1/general/advanced-custom-elements/{task_id}

cURL

curl --request GET \
  --url https://www.anyfast.ai/kling/v1/general/advanced-custom-elements/TASK_ID \
  --header 'Authorization: Bearer YOUR_API_KEY'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

Path parameters

string

required

Task ID returned by the custom element creation endpoint.

Query result

200

{
  "code": 0,
  "message": "",
  "data": {
    "task_id": "asyntask_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
    "task_status": "succeed",
    "task_result": {
      "elements": [{"element_id": 123456789, "element_name": "series-character"}]
    }
  }
}

integer

Business status code; 0 indicates success.

string

Response message.

string

Element creation task ID.

string

Task status.

object[]

Created elements.

integer

Reusable element ID for O1 requests.

string

Element name.

List preset elements

GET /kling/v1/general/advanced-presets-elements

cURL

curl --request GET \
  --url 'https://www.anyfast.ai/kling/v1/general/advanced-presets-elements?pageNum=1&pageSize=30' \
  --header 'Authorization: Bearer YOUR_API_KEY'

Request headers

string

required

Bearer authentication in the form Bearer YOUR_API_KEY.

Query parameters

integer

default:1

Page number from 1 to 1,000.

integer

default:30

Items per page from 1 to 500.

Query result

200

{
  "code": 0,
  "message": "",
  "data": [{
    "task_result": {
      "elements": [{"element_id": 987654321, "element_name": "preset-character", "owned_by": "vod"}]
    }
  }]
}

integer

Business status code; 0 indicates success.

string

Response message.

object[]

Preset element task records.

object[]

Preset elements.

integer

Preset element ID.

string

Element name.

string

Current preset elements normally return vod.

Kling O1 Guide

Review model capabilities, media constraints, and usage guidance.

​Create task

​Request headers

​Request body

​Create response

​Create task

​Request headers

​Request body

​Create response

​Create task

​Request headers

​Request body

​Create response

​Create task

​Request headers

​Request body

​Create response

​Create task

​Request headers

​Request body

​Create response

​Query task

​Request headers

​Path parameters

​Task result

​Create custom element

​Request headers

​Request body

​Create response

​Query custom element

​Request headers

​Path parameters

​Query result

​List preset elements

​Request headers

​Query parameters

​Query result

Kling O1 Guide

Create task

Request headers

Request body

Create response

Create task

Request headers

Request body

Create response

Create task

Request headers

Request body

Create response

Create task

Request headers

Request body

Create response

Create task

Request headers

Request body

Create response

Query task

Request headers

Path parameters

Task result

Create custom element

Request headers

Request body

Create response

Query custom element

Request headers

Path parameters

Query result

List preset elements

Request headers

Query parameters

Query result