> ## 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.

# Wan 2.6 Reference-to-Video Flash

> [Core Function] Wan 2.6 Reference-to-Video Flash is a legacy generation model. [Strengths] Provided enhanced dynamic camera movements and rich lighting effects. Maintained for backward compatibility. [Best For] Existing legacy integrations that require the specific speed/cost tradeoff of this older model. [Limitations] Do NOT use this for new creations. It is a legacy model maintained for backward compatibility. [Routing] Only use if explicitly requested; otherwise use Wan 2.7.



## OpenAPI

````yaml /model-api/alibaba/alibaba-v2v.json post /alibaba/wan2.6-r2v-flash
openapi: 3.1.0
info:
  description: The video-to-video models API from Alibaba.
  version: 1.0.0
  contact:
    name: Modellix Support
    email: support@modellix.ai
  title: Alibaba Video-to-Video Models API
servers:
  - url: https://api.modellix.ai/api/v1
    description: The video-to-video models API from Alibaba.
security:
  - bearerAuth: []
paths:
  /alibaba/wan2.6-r2v-flash:
    post:
      summary: Wan 2.6 Reference-to-Video Flash
      description: >-
        [Core Function] Wan 2.6 Reference-to-Video Flash is a legacy generation
        model. [Strengths] Provided enhanced dynamic camera movements and rich
        lighting effects. Maintained for backward compatibility. [Best For]
        Existing legacy integrations that require the specific speed/cost
        tradeoff of this older model. [Limitations] Do NOT use this for new
        creations. It is a legacy model maintained for backward compatibility.
        [Routing] Only use if explicitly requested; otherwise use Wan 2.7.
      operationId: wan26R2vFlashAsync
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Wan26R2vFlashRequest'
            examples:
              basic:
                summary: Basic video with audio
                value:
                  prompt: Character1 singing a song
                  reference_urls:
                    - https://example.com/character.jpg
                  audio: true
              silent:
                summary: Silent video generation
                value:
                  prompt: Character dancing in a studio
                  reference_urls:
                    - https://example.com/dancer.jpg
                  audio: false
                  size: 1280*720
                  duration: 5
              multi_shot:
                summary: Multi-shot with audio
                value:
                  prompt: Two characters having an animated conversation
                  reference_urls:
                    - https://example.com/char1.jpg
                    - https://example.com/char2.jpg
                  shot_type: multi
                  audio: true
                  duration: 8
      responses:
        '200':
          description: Task submitted successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AsyncTaskResponse'
components:
  schemas:
    Wan26R2vFlashRequest:
      type: object
      required:
        - prompt
        - reference_urls
      properties:
        prompt:
          type: string
          description: >-
            Video content description (supports Chinese and English, up to 1500
            characters). Can reference characters using 'Character1/Character2'
            format
          minLength: 1
          maxLength: 1500
          example: Character1 singing a song
        reference_urls:
          type: array
          description: Reference URLs array (images + videos ≤ 5)
          minItems: 1
          maxItems: 5
          items:
            type: string
            format: uri
            description: Reference media URL (HTTP/HTTPS/OSS)
          example:
            - https://example.com/character.jpg
        negative_prompt:
          type: string
          description: Negative prompt describing unwanted content
          maxLength: 500
          example: blurry, distorted, low quality
        size:
          type: string
          description: 'Video resolution (format: width*height)'
          enum:
            - 1280*720
            - 720*1280
            - 960*960
            - 1088*832
            - 832*1088
            - 1920*1080
            - 1080*1920
            - 1440*1440
            - 1632*1248
            - 1248*1632
          default: 1920*1080
          example: 1920*1080
        duration:
          type: integer
          description: Video duration in seconds
          enum:
            - 2
            - 3
            - 4
            - 5
            - 6
            - 7
            - 8
            - 9
            - 10
          default: 5
          example: 5
        shot_type:
          type: string
          description: Shot type (single-shot or multi-shot narrative)
          enum:
            - single
            - multi
          default: single
          example: single
        audio:
          type: boolean
          description: >-
            Whether to generate video with audio (wan2.6-r2v-flash exclusive
            feature)
          default: true
          example: true
        seed:
          type: integer
          description: Random seed for reproducibility
          minimum: 0
          maximum: 2147483647
          example: 42
    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`.'

````