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.

POST /alibaba/wan2.7-i2v

cURL

first_frame_mode

curl --request POST \
  --url https://api.modellix.ai/api/v1/alibaba/wan2.7-i2v \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "first_frame": "https://example.com/first.png"
}
'

200

{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-abc123",
    "model_id": "model-123",
    "get_result": {
      "method": "GET",
      "url": "https://api.modellix.ai/api/v1/tasks/task-abc123"
    }
  }
}

Authorizations

Authorization · string · header · required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json

Option 1 — Frame mode

Option 2 — Continuation mode

Wan 2.7 image-to-video. Choose one option — Frame and Continuation fields are mutually exclusive. prompt is optional. Do not mix first_frame with first_clip. driving_audio is only valid with first-frame modes.

first_frame · string · required

Required. First frame image URL. Supports HTTP/HTTPS URL, OSS URL, or image base64 data URI. Do not pass first_clip.

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 · string

Optional last frame image URL. Requires first_frame. Supports HTTP/HTTPS URL, OSS URL, or image base64 data URI.

Pattern: ^(https?://|oss://|data:image/)

driving_audio · string

Optional driving audio URL (HTTP/HTTPS/OSS). Do not pass with first_clip.

Pattern: ^(https?://|oss://)

prompt · string

Optional text prompt, max 5000 chars.

Maximum string length: 5000

negative_prompt · string

Optional negative prompt, max 500 chars.

Maximum string length: 500

resolution · enum<string> · default: 1080P

Output resolution tier.

Available options: 720P, 1080P

duration · integer · default: 5

Video duration in seconds.

Required range: 2 <= x <= 15

prompt_extend · boolean · default: true

Enable prompt intelligent rewrite.

seed · integer

Random seed for reproducibility.

Required range: 0 <= x <= 2147483647

Response

200 - application/json

Task submitted successfully

code · integer · required

Response code, 0 indicates success

Example:

0

message · string · required

Response message

Example:

"success"

data · object · required

Detailed data about the submitted asynchronous task.

Show child attributes