Wan 2.6 Flash - Unifically

Generate AI videos using Wan 2.6 Flash with the same capabilities as Wan 2.6 but faster and cheaper. Supports text-to-video, image-to-video, reference-to-video (character consistency), and multi-shot narratives with audio generation.

Model

alibaba/wan-2.6-flash-video

Modes

Set mode explicitly to select generation type:

t2v (default) — text-to-video
i2v — image-to-video (requires start_image_url)
r2v — reference-to-video (requires video_urls)

Parameters

Parameter	Type	Required	Description
`prompt`	string	Yes	Text description of the video. For R2V, use `character1`, `character2`, etc. matching `video_urls` order
`mode`	string	No	`t2v`, `i2v`, or `r2v` (default: `t2v`)
`start_image_url`	string	No	First-frame image URL for I2V mode (JPEG, PNG, BMP, WEBP)
`video_urls`	array	No	Reference image/video URLs for R2V mode. Up to 5 (max 3 videos). Each = one character
`audio_url`	string	No	Custom audio URL for audio-video sync (wav/mp3, max 15MB, 3-30s)
`multi_prompt`	array	No	Multi-shot segments `[{prompt, duration}]`. Auto-sets shot type and calculates total duration
`negative_prompt`	string	No	What to avoid in the video (max 500 chars). Ignored for R2V
`resolution`	string	No	`720p` or `1080p` (default: `720p`)
`duration`	integer	No	Video length in seconds, 2-15s (R2V: 2-10s). Overridden by `multi_prompt` if set (default: `5`)
`prompt_extend`	boolean	No	Intelligent prompt rewriting (default: `true`)
`watermark`	boolean	No	Add watermark (default: `false`)
`audio`	boolean	No	Auto-generate audio. Set `false` for silent video (default: `true`)
`seed`	integer	No	Seed for reproducibility. Not supported for R2V

Example - Text-to-Video

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "alibaba/wan-2.6-flash-video",
    "input": {
      "prompt": "A cat running on the grass",
      "mode": "t2v",
      "resolution": "720p",
      "duration": 5
    }
  }'

Example - Image-to-Video

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "alibaba/wan-2.6-flash-video",
    "input": {
      "prompt": "The camera slowly pans up from below the sea turtle",
      "mode": "i2v",
      "start_image_url": "https://example.com/turtle.jpg",
      "resolution": "720p",
      "duration": 10
    }
  }'

Example - Reference-to-Video

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "alibaba/wan-2.6-flash-video",
    "input": {
      "prompt": "character1 gives an enthusiastic product introduction to camera",
      "mode": "r2v",
      "video_urls": ["https://example.com/presenter.mp4"],
      "duration": 5
    }
  }'

Example - Multi-Shot

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "alibaba/wan-2.6-flash-video",
    "input": {
      "prompt": "Cinematic detective story",
      "multi_prompt": [
        {"prompt": "Wide shot of rainy New York streets, neon lights", "duration": 5},
        {"prompt": "Close-up of detective walking into an old building", "duration": 5}
      ],
      "resolution": "1080p"
    }
  }'

Response

{
  "code": 200,
  "success": true,
  "data": {
    "task_id": "abc123def456",
    "status": "processing"
  }
}

​Model

​Modes

​Parameters

​Example - Text-to-Video

​Example - Image-to-Video

​Example - Reference-to-Video

​Example - Multi-Shot

​Response