How to Use the Alibaba WAN 2.6 API: video to video integration guide (2026)

Alibaba WAN 2.6 is a video to video model by Alibaba: Alibaba WAN 2.6 Reference-to-Video seamlessly transforms character, prop, or scene references—supporting both single and multi-view inputs—into high-quality video sequences. It excels at preserving identity, style, and layout while delivering fluid, coherent motion. Experience peak performance via our production-ready REST API, featuring zero cold starts and cost-effective pricing. On NamiFusion you can try it in the playground (exact quote shown before you submit), then call it through one unified REST API — about $0.675 per typical run.

TL;DR

· Task type: video to video, provided by Alibaba

· Pricing: about $0.675 per typical run ($1 = 100 credits), pay-as-you-go

· Getting started: playground (exact quote before submit) → create an API key → one POST request

· Tunable parameters: 6 (see the table below)

· No platform watermark; commercial use allowed (per the Terms of Service)

What can you build with Alibaba WAN 2.6?

Short-form video and ad clips: go from a prompt or a single image to publishable motion content.

Product demos and concept previews: validate storyboards and visual direction cheaply before any shoot.

A social content factory: batch vertical clips and ride trending topics fast.

Remixing existing assets: image-to-video brings static work to life and extends its lifespan.

How do you call this API?

1. Sign up on NamiFusion and create a key on the API Keys page (signup bonus credits can only be used on selected models).
2. Submit a task with the cURL example below, passing your key as a Bearer token.
3. Poll the task status with the returned task_uuid and read the output URLs when completed.

# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/alibaba/wan-2.6/reference-to-video" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "prompt": "character1 turns gently toward the camera with natural movement and a subtle smile. Smooth cinematic lighting.",
    "negative_prompt": "Avoid dark or gloomy scenes, and ensure no elements of destruction or chaos are present.",
    "size": "1920*1080",
    "duration": 5,
    "shot_type": "single",
    "seed": 12345
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"

What parameters does it take?

prompt (Prompt): required

negative_prompt (Negative Prompt): optional

size (Size): optional, default "1920*1080"

duration (Duration): optional, default 5

shot_type (Shot Type): optional, default "single"

seed (Seed): optional

How do you write prompts for Alibaba WAN 2.6?

1. Subject first: lead with the actor and action, then add environment, lighting and style ("an astronaut sprinting through a neon street in the rain, cinematic, shallow depth of field").
2. Concrete nouns beat stacked adjectives: "85mm portrait lens, golden-hour backlight" works far better than "very beautiful, ultra high quality".
3. Change one variable per iteration: pin the seed to reproduce a result, tweak a single phrase at a time so you know what actually moved the output.
4. State negatives positively: instead of "no blur", ask for "sharp focus, crisp details".

How much does it cost?

Pay-per-use in credits. About $0.675 per typical run ($1 = 100 credits); the exact price varies with parameters like resolution or duration, and the playground shows the exact quote before you submit.