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

# Kling Video O1 T2V

> [Core Function] Kling Video O1 T2V is the text-to-video slice of Kling O1 Omni Video. [Strengths] Reasoning-enhanced prompt planning with 3-10s duration and 720p/1080p output. [Best For] Complex physical interactions and logically demanding scenes from text alone. [Limitations] No native audio; duration capped at 10s; no multi_shot. [Routing] Prefer this for O1-quality T2V; use Kling Video O1 V2V when a source video is required.



## OpenAPI

````yaml /model-api/kling/kling-t2v.json post /kling/kling-video-o1-t2v
openapi: 3.1.0
info:
  description: The text-to-video models API from Kling AI.
  version: 1.0.0
  contact:
    name: Modellix Support
    email: support@modellix.ai
  title: Kling Text-to-Video Models API
servers:
  - url: https://api.modellix.ai/api/v1
    description: The text-to-video models API from Kling AI.
security:
  - bearerAuth: []
paths:
  /kling/kling-video-o1-t2v:
    post:
      summary: Kling Video O1 T2V
      description: >-
        [Core Function] Kling Video O1 T2V is the text-to-video slice of Kling
        O1 Omni Video. [Strengths] Reasoning-enhanced prompt planning with 3-10s
        duration and 720p/1080p output. [Best For] Complex physical interactions
        and logically demanding scenes from text alone. [Limitations] No native
        audio; duration capped at 10s; no multi_shot. [Routing] Prefer this for
        O1-quality T2V; use Kling Video O1 V2V when a source video is required.
      operationId: klingVideoO1T2VAsync
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/KlingVideoO1T2VRequest'
            examples:
              basic:
                summary: Basic T2V
                value:
                  prompt: A glass of water tips over and spills across a wooden table
                  resolution: 1080p
                  aspect_ratio: '16:9'
                  duration: 5
                  audio: 'off'
      responses:
        '200':
          description: Task submitted successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AsyncTaskResponse'
              example:
                code: 0
                message: success
                data:
                  status: pending
                  task_id: task-o1-t2v-123
                  model_id: model-123
                  get_result:
                    method: GET
                    url: https://api.modellix.ai/api/v1/tasks/task-o1-t2v-123
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    KlingVideoO1T2VRequest:
      type: object
      required:
        - prompt
      properties:
        prompt:
          type: string
          description: Video generation prompt.
          minLength: 1
          maxLength: 2500
          example: A glass of water tips over and spills across a wooden table
        audio:
          type: string
          description: 'Official O1 settings.audio without reference video: off only.'
          default: 'off'
          enum:
            - 'off'
          example: 'off'
        resolution:
          type: string
          description: Output video resolution.
          default: 720p
          enum:
            - 720p
            - 1080p
          example: 1080p
        aspect_ratio:
          type: string
          description: Video aspect ratio.
          default: '16:9'
          enum:
            - '16:9'
            - '9:16'
            - '1:1'
          example: '16:9'
        duration:
          type: integer
          description: Video duration in seconds (3-10).
          default: 5
          enum:
            - 3
            - 4
            - 5
            - 6
            - 7
            - 8
            - 9
            - 10
          example: 5
      description: Kling Video O1 T2V — category slice of kling-video-o1. No images/videos.
    AsyncTaskResponse:
      type: object
      required:
        - code
        - message
        - data
      properties:
        code:
          type: integer
          description: Response code, 0 indicates success
          example: 0
        message:
          type: string
          description: Response message
          example: success
        data:
          type: object
          required:
            - status
            - task_id
            - model_id
          properties:
            status:
              type: string
              enum:
                - pending
                - processing
              description: Task status
              example: pending
            task_id:
              type: string
              description: Unique task identifier
              example: task-abc123
            model_id:
              type: string
              description: Model ID
              example: model-123
            get_result:
              type: object
              description: API information to query the task result
              properties:
                method:
                  type: string
                  description: HTTP method
                  example: GET
                url:
                  type: string
                  description: Full URL to query the task result
                  example: https://api.modellix.ai/api/v1/tasks/task-abc123
          description: Detailed data about the submitted asynchronous task.
    ErrorResponse:
      type: object
      required:
        - code
        - message
      properties:
        code:
          type: integer
          description: Error code (equals HTTP status code)
          example: 400
        message:
          type: string
          description: 'Error message in format ''Category: detail'''
          example: 'Invalid parameters: parameter ''prompt'' is required'
  responses:
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 400
            message: 'Invalid parameters: parameter ''prompt'' is required'
    Unauthorized:
      description: Unauthorized - Invalid or missing API Key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 401
            message: 'Authentication failed: invalid API key'
    TooManyRequests:
      description: Too many requests - Rate limit exceeded
      headers:
        X-RateLimit-Limit:
          description: Maximum requests per minute
          schema:
            type: integer
            example: 100
        X-RateLimit-Remaining:
          description: Remaining quota in current window
          schema:
            type: integer
            example: 0
        X-RateLimit-Reset:
          description: Rate limit window reset time (Unix timestamp)
          schema:
            type: integer
            example: 1704067260
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 429
            message: >-
              Rate limit exceeded: 100 requests per minute, retry after 60
              seconds
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            code: 500
            message: Internal server error
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'API Key authentication. Format: `Bearer YOUR_API_KEY`.'

````