> ## 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.

# Seedance 2.0 Mini V2V

> [Core Function] Seedance 2.0 Mini V2V is the lightweight video-to-video variant. [Strengths] Supports 480p/720p, 24 fps, 4-15s MP4 output, with required reference video and optional text/image/audio references. [Routing] Use for cost-efficient video-to-video transformations.



## OpenAPI

````yaml /model-api/bytedance/bytedance-v2v.json post /bytedance/seedance-2.0-mini-v2v
openapi: 3.1.0
info:
  description: >-
    ByteDance video-to-video models API (JMAAS flat parameters; aligned with
    prediction model_metadata seedance20SeriesV2VParamRules).
  version: 1.0.0
  contact:
    name: Modellix Support
    email: support@modellix.ai
  title: ByteDance Video-to-Video Models API
servers:
  - url: https://api.modellix.ai/api/v1
    description: >-
      ByteDance models via JMAAS (use video-to-video route prefix in client URL
      path).
security:
  - bearerAuth: []
paths:
  /bytedance/seedance-2.0-mini-v2v:
    post:
      summary: Seedance 2.0 Mini V2V
      description: >-
        [Core Function] Seedance 2.0 Mini V2V is the lightweight video-to-video
        variant. [Strengths] Supports 480p/720p, 24 fps, 4-15s MP4 output, with
        required reference video and optional text/image/audio references.
        [Routing] Use for cost-efficient video-to-video transformations.
      operationId: seedance20MiniV2vAsync
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Seedance20MiniV2vRequest'
      responses:
        '200':
          description: Task submitted successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AsyncTaskResponse'
components:
  schemas:
    Seedance20MiniV2vRequest:
      type: object
      description: >-
        Seedance 2.0 Mini video-to-video request. Same input combinations as
        Fast 2.0 V2V; `resolution` is limited to 480p/720p.
      required:
        - video_urls
      properties:
        prompt:
          type: string
          minLength: 1
          maxLength: 10000
          description: >-
            Optional. Video description. Maximum 10000 characters. Use `[Image
            n]`, `[Video n]`, and `[Audio n]` placeholders when referencing
            optional inputs. Recommended prompt length: under 1000 words.
        video_urls:
          type: array
          minItems: 1
          maxItems: 3
          description: Required. One to three reference video URLs.
          items:
            type: string
            minLength: 1
            description: Video URL.
        reference_images:
          type: array
          minItems: 1
          maxItems: 9
          description: >-
            Optional. Up to 9 reference image URLs for style or content
            guidance. Use `[Image n]` placeholders in prompt.
          items:
            type: string
            minLength: 1
            description: Image URL or Base64 data.
        audio_urls:
          type: array
          minItems: 1
          maxItems: 3
          description: >-
            Optional. Up to 3 reference audio URLs. Use `[Audio n]` placeholders
            in prompt.
          items:
            type: string
            minLength: 1
            description: Audio URL.
        ratio:
          type: string
          enum:
            - '21:9'
            - '16:9'
            - '4:3'
            - '1:1'
            - '3:4'
            - '9:16'
          default: '16:9'
          description: Aspect ratio of the generated video.
        resolution:
          type: string
          enum:
            - 480p
            - 720p
          default: 720p
          description: Output resolution of the video.
        duration:
          type: integer
          enum:
            - 4
            - 5
            - 6
            - 7
            - 8
            - 9
            - 10
            - 11
            - 12
            - 13
            - 14
            - 15
          default: 5
          description: Video duration in seconds (4-15 seconds).
        seed:
          type: integer
          minimum: -1
          maximum: 4294967295
          default: -1
          description: Random seed for reproducible generation. Use -1 for random.
        camera_fixed:
          type: boolean
          default: false
          description: Whether to keep the camera fixed during generation.
        generate_audio:
          type: boolean
          default: true
          description: Whether to generate audio.
        execution_expires_after:
          type: integer
          minimum: 3600
          maximum: 259200
          default: 172800
          description: Task expiration time in seconds.
        return_last_frame:
          type: boolean
          default: false
          description: Whether to return the last frame of the generated video.
    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.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'API Key authentication. Format: `Bearer YOUR_API_KEY`.'

````