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wan2.6-i2v-flash Image-to-Video

- Wanxiang 2.6 fast image-to-video model

  • Generates smooth video from first-frame image and text prompts
  • Supports audio/silent toggle, multi-shot narration, custom audio
  • Supports 720p/1080p resolution, 2-15 seconds duration
  • Supports video effect templates

Request example

curl --request POST \
  --url https://api.openveer.com/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "wan2.6-i2v-flash",
    "prompt": "The person turns around and smiles",
    "image_urls": ["https://example.com/portrait.jpg"],
    "resolution": "1080p",
    "duration": 5
  }'

Response example

{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01J9HA7JPQ9A0Z6JZ3V8M9W6PZ"
    }
  ]
}

Authentication

Authorization string

All endpoints require Bearer Token authentication

Get API Key:

Visit the API Key Management Page to get your API Key

Add to request header:

Authorization: Bearer YOUR_API_KEY

Request Parameters

model string

Video generation model name, fixed as wan2.6-i2v-flash

nsfw_check boolean

Whether to run content moderation before submitting the video task.

  • true: use omni-moderation-latest to review prompts and input images
  • false or omitted: do not send a moderation request, adding no moderation cost or latency (default)
image_urls string

" required>
Reference image URL array (only 1 first-frame image supported)

Supports publicly accessible image URLs or Base64 encoding (data:image/png;base64,...)

Example: ["https://example.com/image.jpg"]

Note



Image requirements:

* Format: JPEG, JPG, PNG (no transparency), BMP, WEBP
* Resolution: width/height range 240-8000 pixels
* Size: ≤ 10MB

prompt string

Video content description

Optional but recommended for image-to-video, describes expected actions and effects

Clearly specify subject, action, camera and style for better results

Example: "The person in the image smiles and waves, camera slowly zooms in"

negative_prompt string

Negative prompt, describes unwanted content

Maximum 500 characters

Example: "blurry, low quality, distorted"

resolution string

Video resolution

Options:

  • 720p - HD
  • 1080p - FHD (default)

Default: 1080p

Note



Resolution directly affects pricing, 1080p is more expensive than 720p. Aspect ratio is determined by the input image.

duration integer

Video duration (seconds)

Supported range: 2 to 15 seconds (integer)

Default: 5

audio boolean

Whether to generate audio

Set to true: automatically generates matching background music/sound effects (default)

Set to false: outputs silent video

Default: true

Note



Not supported when the model is wan2.6-i2v.

audio_url string

Custom audio URL (wav/mp3, 3-30 seconds, ≤ 15MB)

Lower priority than audio: ignored when audio=false

If audio is longer than video duration, it will be trimmed; if shorter, the remaining part will be silent

Warning



Audio file requirements:

* Format: wav, mp3
* Duration: 3-30 seconds
* Size: ≤ 15MB

prompt_extend boolean

Whether to enable smart prompt rewriting

Significantly improves results for shorter prompts, but increases processing time

Default: true

shot_type string

Shot type, requires prompt_extend=true

Options:

  • single - Single shot (default), outputs a continuous single-shot video
  • multi - Multi-shot, outputs a narrative video with multiple shot transitions

Note



shot_type has higher priority than prompt. Even if the prompt mentions "multi-shot", setting single will still output a single shot.

seed integer

Random seed (≥0), specifying the same seed can reproduce similar results

Example: 12345

watermark boolean

Whether to add an "AI Generated" watermark (bottom right)

Default: false

Audio Control

Parameter Combination Result
No audio or audio_url Auto-generated audio (default)
audio_url: "https://..." Use specified audio
audio: false Silent video
audio: false + audio_url: "..." Silent video (audio has higher priority)

Response

code integer

Response status code, 200 on success

data array
Response data array
status string

Task status, submitted on initial submission

task_id string

Unique task identifier for querying task status and results

Use Cases

Case 1: Minimal Request

{
  "model": "wan2.6-i2v-flash",
  "image_urls": ["https://example.com/image.jpg"]
}

Case 2: Full Parameters

{
  "model": "wan2.6-i2v-flash",
  "prompt": "The person in the image smiles and waves, camera slowly zooms in",
  "image_urls": ["https://example.com/image.jpg"],
  "negative_prompt": "blurry, low quality, distorted",
  "resolution": "1080p",
  "duration": 10,
  "seed": 12345,
  "prompt_extend": true,
  "shot_type": "multi",
  "audio": true,
  "watermark": false
}

Case 3: Custom Audio

{
  "model": "wan2.6-i2v-flash",
  "prompt": "Person dancing to the music",
  "image_urls": ["https://example.com/dancer.jpg"],
  "audio_url": "https://example.com/music.mp3",
  "resolution": "1080p",
  "duration": 10
}

Case 4: Silent Video

{
  "model": "wan2.6-i2v-flash",
  "prompt": "Flower slowly blooming",
  "image_urls": ["https://example.com/flower.jpg"],
  "audio": false,
  "resolution": "720p",
  "duration": 5
}

Case 5: Effect Template

{
  "model": "wan2.6-i2v-flash",
  "image_urls": ["https://example.com/person.jpg"],
  "template": "flying",
  "resolution": "720p"
}

Case 6: Base64 Image

{
  "model": "wan2.6-i2v-flash",
  "prompt": "Make the cat stand up and walk",
  "image_urls": ["data:image/png;base64,iVBORw0KGgo..."],
  "duration": 5
}
Note

Query Task Results

Video generation is an asynchronous task that returns a task_id upon submission. Use the Get Task Status endpoint to query generation progress and results.

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