> ## 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 3.0 V2V > [Core Function] Wan 3.0 V2V is Alibaba Wan 3.0 reference-video generation that builds new video from one or more input videos. [Strengths] It supports up to 5 reference videos with optional reference images and audio for multimodal composition and prompt-referenced subjects. [Best For] Highly recommended for: video-to-video transformation, multi-subject scenes that cite video1/image1 in the prompt, and extending creative edits from existing clips. [Limitations] Do NOT use this model for text-only, file/link, or first-frame-only workflows. video_urls is required. [Routing] Prefer this model when the user supplies reference video. Use Wan 3.0 T2V for prompt/file/link and Wan 3.0 I2V for image-first generation. ## OpenAPI ````yaml /media-model-api/alibaba/alibaba-v2v.json post /alibaba/wan3.0-v2v 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/wan3.0-v2v: post: summary: Wan 3.0 V2V description: >- [Core Function] Wan 3.0 V2V is Alibaba Wan 3.0 reference-video generation that builds new video from one or more input videos. [Strengths] It supports up to 5 reference videos with optional reference images and audio for multimodal composition and prompt-referenced subjects. [Best For] Highly recommended for: video-to-video transformation, multi-subject scenes that cite video1/image1 in the prompt, and extending creative edits from existing clips. [Limitations] Do NOT use this model for text-only, file/link, or first-frame-only workflows. video_urls is required. [Routing] Prefer this model when the user supplies reference video. Use Wan 3.0 T2V for prompt/file/link and Wan 3.0 I2V for image-first generation. operationId: wan30V2vAsync requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Wan30V2vRequest' examples: reference_video: summary: Reference video with images value: prompt: >- Video 1 holds image 1 and plays a calm folk song on the chair from image 2 video_urls: - https://example.com/role.mp4 reference_images: - https://example.com/object.png - https://example.com/chair.png duration: 5 ratio: '1:1' video_only: summary: Reference video only value: prompt: Restyle the clip into a rainy night cinematic look video_urls: - https://example.com/input.mp4 resolution: 720P duration: 6 responses: '200': description: Task submitted successfully content: application/json: schema: $ref: '#/components/schemas/AsyncTaskResponse' components: schemas: Wan30V2vRequest: type: object required: - video_urls description: >- video_urls is required. Optional reference_images and audio_urls can be combined with the reference videos. properties: prompt: type: string description: >- Text prompt describing the desired video content. Supports Chinese and English. Max 20000 characters. minLength: 1 maxLength: 20000 example: A cute cat running on a moonlit rooftop, cinematic. video_urls: type: array description: >- Reference video URLs (1-5). Total input video duration must be no more than 15 seconds. minItems: 1 maxItems: 5 items: type: string format: uri example: - https://example.com/role.mp4 reference_images: type: array description: >- Optional reference image URLs (1-10) used together with reference videos minItems: 1 maxItems: 10 items: type: string format: uri example: - https://example.com/object.png audio_urls: type: array description: Optional reference audio URLs (1-5) minItems: 1 maxItems: 5 items: type: string format: uri example: - https://example.com/bgm.mp3 resolution: type: string description: Specifies the resolution tier for the generated video enum: - 480P - 720P - 1080P default: 1080P example: 1080P ratio: type: string description: Specifies the aspect ratio for the generated video enum: - '16:9' - '4:3' - '1:1' - '3:4' - '9:16' default: '1:1' example: '1:1' duration: type: integer description: Video duration in seconds. Allowed values are integers from 2 to 30 enum: - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 default: 5 example: 5 audio: type: boolean description: Whether the output video includes an audio track default: true example: true seed: type: integer description: >- Random number seed for reproducibility. Identical seeds cannot guarantee completely identical results minimum: 0 maximum: 2147483647 example: 12345 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`.' ````