> ## Documentation Index
> Fetch the complete documentation index at: https://apidoc.cometapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Crear una tarea de edición multimodal de Kling

> Crea una tarea de edición de video multimodal de Kling a través de CometAPI: POST /kling/v1/videos/multi-elements para combinar múltiples elementos y generar videos de forma asíncrona.

Usa este endpoint para enviar el trabajo final de edición de video multimodal una vez que tu sesión y selecciones estén listas.

## Flujo de trabajo completo

<Steps>
  <Step title="Initialize the editing session">
    Comienza con [Initialize Video for Editing](./initialize-video-for-editing) para obtener el `session_id` del clip que quieres editar.
  </Step>

  <Step title="Build the selection area">
    Usa [Add Video Selection](./add-video-selection) y, cuando sea necesario, [Preview Selected Video Area](./preview-selected-video-area) para ajustar la región de edición.
  </Step>

  <Step title="Submit the final task">
    Envía el `session_id`, `edit_mode`, el `prompt` final y cualquier configuración opcional de generación mediante este endpoint, y luego guarda el id de tarea devuelto para consultar el estado.
  </Step>
</Steps>

## Antes de llamarlo

* Asegúrate de que la sesión de selección ya esté inicializada
* Confirma que la selección de tu región sea correcta antes de consumir una llamada de generación
* Ejecuta las llamadas de seguimiento de selección en la misma cuenta y con el `session_id` exacto devuelto por la inicialización
* Establece `edit_mode` en `addition`, `swap` o `removal`
* Proporciona `image_list` para `addition` y `swap`; omite `image_list` para `removal`
* Envía `duration` como una cadena como `"5"` o `"10"`; los ejemplos pasan `"5"` explícitamente
* Trata esta ruta como el paso final de generación, no como el paso de configuración
* Agrega `image_list`, `negative_prompt`, `mode`, `duration`, `callback_url` o `external_task_id` solo cuando el flujo de edición los necesite

<Tip>
  Para ver la referencia completa de parámetros, consulta la [documentación de la API de Kling](https://kling.ai/document-api/apiReference/model/multiElements).
</Tip>


## OpenAPI

````yaml api/openapi/video/kling/multimodal-video-editing/post-create-task.openapi.json POST /kling/v1/videos/multi-elements
openapi: 3.1.0
info:
  title: Create Task API
  version: 1.0.0
  description: >-
    Submit the final Kling multimodal video-editing job after the selection
    session is ready.
servers:
  - url: https://api.cometapi.com
security:
  - bearerAuth: []
paths:
  /kling/v1/videos/multi-elements:
    post:
      summary: Create a Kling multimodal edit task
      description: >-
        Send the `session_id`, `edit_mode`, and final edit prompt after the
        selection area has already been prepared.
      operationId: create_task
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - session_id
                - edit_mode
                - prompt
              allOf:
                - if:
                    properties:
                      edit_mode:
                        const: addition
                    required:
                      - edit_mode
                  then:
                    required:
                      - image_list
                - if:
                    properties:
                      edit_mode:
                        const: swap
                    required:
                      - edit_mode
                  then:
                    required:
                      - image_list
              properties:
                session_id:
                  type: string
                  description: >-
                    Selection session id returned by init-selection. Follow-up
                    calls must use the same account and exact session id.
                edit_mode:
                  type: string
                  description: >-
                    Editing operation for the selected video region. Use
                    `addition` to add an element, `swap` to replace a selected
                    element, or `removal` to remove it.
                  enum:
                    - addition
                    - swap
                    - removal
                prompt:
                  type: string
                  description: >-
                    Instruction describing the desired edit. Reference the
                    source video as `<<<video_1>>>` and any reference image as
                    `<<<image_1>>>`.
                model_name:
                  type: string
                  description: >-
                    Kling model variant for the final edit task. Omit to use
                    `kling-v1-6`.
                  enum:
                    - kling-v1-6
                  default: kling-v1-6
                image_list:
                  type: array
                  description: >-
                    Image references used by `addition` and `swap` tasks. Omit
                    this field for `removal` tasks.
                  minItems: 1
                  items:
                    type: object
                    required:
                      - image
                    properties:
                      image:
                        type: string
                negative_prompt:
                  type: string
                  description: Elements to avoid in the edited result.
                mode:
                  type: string
                  description: Generation mode. Use `std` or `pro`.
                  enum:
                    - std
                    - pro
                duration:
                  type: string
                  description: Requested output duration in seconds.
                callback_url:
                  type: string
                  description: Webhook URL to receive task status updates.
                external_task_id:
                  type: string
                  description: >-
                    Custom task id for your own tracking. Must be unique per
                    account.
              default:
                session_id: <session_id>
                edit_mode: removal
                prompt: Delete the selected object from <<<video_1>>>
                mode: std
                duration: '5'
            examples:
              Default:
                summary: Multi-elements edit task
                value:
                  session_id: <session_id>
                  edit_mode: removal
                  prompt: Delete the selected object from <<<video_1>>>
                  mode: std
                  duration: '5'
              Addition:
                summary: Add an image element to the selected area
                value:
                  session_id: <session_id>
                  edit_mode: addition
                  image_list:
                    - image: https://your-image-host/object-to-add.jpg
                  prompt: >-
                    Add <<<image_1>>> naturally into <<<video_1>>> at the
                    selected area
                  mode: std
                  duration: '5'
              Swap:
                summary: Swap the selected element with an image reference
                value:
                  session_id: <session_id>
                  edit_mode: swap
                  image_list:
                    - image: https://your-image-host/new-object.jpg
                  prompt: >-
                    Use <<<image_1>>> to replace the selected object in
                    <<<video_1>>>
                  mode: std
                  duration: '5'
      responses:
        '200':
          description: Task accepted.
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                  - data
                properties:
                  code:
                    type: integer
                  message:
                    type: string
                  data:
                    type: object
                    properties:
                      task_id:
                        type: string
                      task_status:
                        type: string
                      created_at:
                        type: integer
                      updated_at:
                        type: integer
                    additionalProperties: true
      x-codeSamples:
        - lang: Shell
          label: Default
          source: |
            curl https://api.cometapi.com/kling/v1/videos/multi-elements \
              -H "Authorization: Bearer $COMETAPI_KEY" \
              -H "Content-Type: application/json" \
              -d '{
                  "session_id": "<session_id>",
                  "edit_mode": "removal",
                  "prompt": "Delete the selected object from <<<video_1>>>",
                  "mode": "std",
                  "duration": "5"
                }'
        - lang: Python
          label: Default
          source: |
            import os
            import requests

            response = requests.post(
                "https://api.cometapi.com/kling/v1/videos/multi-elements",
                headers={"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]},
                json={
                  "session_id": "<session_id>",
                  "edit_mode": "removal",
                  "prompt": "Delete the selected object from <<<video_1>>>",
                  "mode": "std",
                  "duration": "5"
                },
            )

            result = response.json()
            print(result.get("code"), result.get("data", {}).get("task_id"))
        - lang: JavaScript
          label: Default
          source: >
            const response = await
            fetch("https://api.cometapi.com/kling/v1/videos/multi-elements", {
              method: "POST",
              headers: {
                Authorization: `Bearer ${process.env.COMETAPI_KEY}`,
                "Content-Type": "application/json",
              },
              body: JSON.stringify({
                "session_id": "<session_id>",
                "edit_mode": "removal",
                "prompt": "Delete the selected object from <<<video_1>>>",
                "mode": "std",
                "duration": "5"
              }),
            });


            const result = await response.json();

            console.log(result.code, result.data?.task_id);
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Bearer token authentication. Use your CometAPI key.

````