> ## 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 2.7 I2V > [Core Function] Wan 2.7 I2V is Alibaba's flagship multimodal image-to-video model. [Strengths] It supports multimodal input (text, image, audio, video) for first-frame, start-and-end-frame (FL2V), and video continuation tasks. [Best For] Highly recommended for: complex image animation, cinematic transitions, and video extension workflows. [Limitations] Do NOT use this model if you only need a quick, simple animation where HappyHorse might be faster. [Routing] Use this model by default for complex image-to-video or video continuation tasks. ## OpenAPI ````yaml /model-api/alibaba/alibaba-i2v.json post /alibaba/wan2.7-i2v openapi: 3.1.0 info: description: The image-to-video models API from Alibaba. version: 1.0.0 contact: name: Modellix Support email: support@modellix.ai title: Alibaba Image-to-Video Models API servers: - url: https://api.modellix.ai/api/v1 description: The image-to-video models API from Alibaba. security: - bearerAuth: [] paths: /alibaba/wan2.7-i2v: post: summary: Wan 2.7 I2V description: >- [Core Function] Wan 2.7 I2V is Alibaba's flagship multimodal image-to-video model. [Strengths] It supports multimodal input (text, image, audio, video) for first-frame, start-and-end-frame (FL2V), and video continuation tasks. [Best For] Highly recommended for: complex image animation, cinematic transitions, and video extension workflows. [Limitations] Do NOT use this model if you only need a quick, simple animation where HappyHorse might be faster. [Routing] Use this model by default for complex image-to-video or video continuation tasks. operationId: wan27I2vAsync requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Wan27I2vRequest' examples: first_frame_mode: summary: First-frame generation value: first_frame: https://example.com/first.png prompt: 让画面中的人物自然转身并微笑 resolution: 1080P duration: 5 first_last_frame_mode: summary: First-last-frame generation with audio value: first_frame: https://example.com/first.png last_frame: https://example.com/last.png driving_audio: https://example.com/voice.mp3 prompt: 从首帧平滑过渡到尾帧并与音频节奏同步 resolution: 720P duration: 10 prompt_extend: true continuation_mode: summary: Video continuation mode value: first_clip: https://example.com/input-clip.mp4 last_frame: https://example.com/target-last-frame.png prompt: 续写视频并在结尾过渡到尾帧画面 duration: 15 responses: '200': description: Task submitted successfully content: application/json: schema: $ref: '#/components/schemas/AsyncTaskResponse' components: schemas: Wan27I2vRequest: type: object description: >- Flattened media parameters for Wan 2.7 I2V. Task mode must be one of: first_frame, first_frame+last_frame, first_frame+driving_audio, first_frame+last_frame+driving_audio, first_clip, first_clip+last_frame. required: [] properties: prompt: type: string description: Optional text prompt, max 5000 chars. maxLength: 5000 negative_prompt: type: string description: Optional negative prompt, max 500 chars. maxLength: 500 first_frame: type: string description: >- First frame image URL. Supports HTTP/HTTPS URL, OSS URL, or image base64 data URI. pattern: ^(https?://|oss://|data:image/) examples: - https://example.com/first.png - oss://dashscope-instant/example/first.png - >- data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg== last_frame: type: string description: >- Optional last frame image URL. Supports HTTP/HTTPS URL, OSS URL, or image base64 data URI. pattern: ^(https?://|oss://|data:image/) driving_audio: type: string description: Optional driving audio URL (HTTP/HTTPS/OSS). pattern: ^(https?://|oss://) first_clip: type: string description: Optional first clip URL for continuation mode (HTTP/HTTPS/OSS). pattern: ^(https?://|oss://) resolution: type: string description: Output resolution tier. enum: - 720P - 1080P default: 1080P duration: type: integer description: Video duration in seconds. minimum: 2 maximum: 15 default: 5 prompt_extend: type: boolean description: Enable prompt intelligent rewrite. default: true seed: type: integer description: Random seed for reproducibility. minimum: 0 maximum: 2147483647 anyOf: - required: - first_frame - required: - first_clip 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`.' ````