Wan 2.6 Image-To-Video Spark Generation

Generate videos from images using the wan2.6-i2v-spark model.

POST /vendors/mulerouter/v1/wan2.6-i2v-spark/generation

Create Generation Task

cURL

curl --request POST \
  --url https://api.mulerun.com/vendors/mulerouter/v1/wan2.6-i2v-spark/generation \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "<string>",
  "image": "<string>",
  "negative_prompt": "<string>",
  "resolution": "1080P",
  "prompt_extend": true,
  "shot_type": "single",
  "audio": true,
  "audio_url": "<string>",
  "seed": 1073741823
}
'

202

{
  "task_info": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}

This is a fine-tuned model by MuleRouter based on the Wan2.6 Image-to-Video architecture. It offers improved quality and performance for specific use cases.

Overview

Generate videos from images using the wan2.6-i2v-spark model with support for longer durations, multi-shot generation, and optional last frame specification.

Key Features

• Image-to-video generation with audio support
• 1080P resolution
• 5s, 10s, or 15s duration
• Single or multi-shot generation
• Optional first and last frame specification
• Fine-tuned for enhanced visual quality

Image Requirements

Property	Requirement
Formats	JPEG, JPG, PNG (no transparency), BMP, WEBP
Dimensions	[360, 2000] pixels for both width and height
File Size	Max 10MB
Input	Public URL or Base64 encoded data

Example Requests

Basic Image-to-Video

{
  "prompt": "A black cat looks curiously at the sky, camera gradually rises from eye-level to overhead",
  "image": "https://example.com/first_frame.jpg",
  "resolution": "1080P",
  "duration": 5
}

With Last Frame (Interpolation)

{
  "prompt": "Character starts walking, expression changes naturally",
  "image": "https://example.com/person.jpg",
  "last_frame": "https://example.com/person_end.jpg",
  "resolution": "1080P",
  "duration": 10,
  "audio": true
}

Multi-shot Video

{
  "prompt": "Scene transition with smooth camera movement",
  "image": "https://example.com/scene.jpg",
  "resolution": "1080P",
  "duration": 15,
  "prompt_extend": true,
  "multi_shots": "multi"
}

Parameters

last_frame

• Optional: Yes
• Description: End frame image for video interpolation between first and last frame
• Use case: Create smooth transitions between two specific frames

multi_shots

• Default: single
• Effect: When prompt rewriting is enabled, controls whether the output is single-shot or multi-shot
• Only effective when: prompt_extend is enabled

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

prompt · string · required

Motion/story description for the video (max 2000 characters).

Maximum string length: 2000

image · string · required

First-frame image (URL or Base64). Supported formats: JPEG/JPG/PNG/BMP/WEBP, 360-2000px, ≤10MB.

negative_prompt · string

Negative prompt describing unwanted content (max 500 characters).

Maximum string length: 500

resolution · enum<string> · default: 1080P

Output resolution tier:

• 1080P

Available options: 1080P

duration · enum<integer>

Video duration in seconds. Supported values 5, 10, or 15.

Available options: 5, 10, 15

prompt_extend · boolean · default: true

Enable intelligent prompt rewriting (slightly longer latency, better detail).

shot_type · enum<string> | null · default: single

Specifies the shot type for video generation.

Only takes effect when prompt_extend is enabled.

• single: Default value, outputs single-shot video
• multi: Outputs multi-shot video

Available options: single, multi

audio · boolean | null · default: true

Enable automatic audio generation. Set to false to force a silent output.

audio_url · string<uri> | null

Custom audio file URL (wav/mp3, 3-30s, ≤15MB). Overrides the audio flag.

seed · integer

Random seed [0, 2147483647].

Required range: 0 <= x <= 2147483647

Response

202 - application/json

Accepted - Task created successfully

task_info · object

Show child attributes