wan2.6-i2v-flash

Request parameters and examples for wan2.6-i2v-flash.

POST /v1/async/videos/generations

Send JSON with Authorization: Bearer <PIXAPI_KEY> and Content-Type: application/json.

Request fields

Send the common fields at the top level. Put the model-specific controls listed below inside providerOptions.

Field	Type	Required	Description
model	string	Yes	wan2.6-i2v-flash
prompt	string	Yes	Describe motion, scene, camera, and dialogue; at most 1,500 characters.
seconds	integer	Yes	Integer 2–15 seconds; explicitly required.
resolution	string	No	720p / 1080p. Pixapi default: 1080p.
n	integer	No	Default 1; only integer 1 is supported.
image	string / string[]	Yes	One public first-frame image URL; JPEG/PNG/WebP/BMP. Required; arrays must contain exactly one image.
providerOptions	object	No	Model-specific options; see the table below.

providerOptions

All fields in this table are nested inside providerOptions, not alongside model.

Field	Type	Description
seed	integer	Random seed, 0–2147483647; omitted means random. The same seed does not guarantee identical output.
prompt_extend	boolean	Rewrite and expand the prompt for generation; default true.
watermark	boolean	Add a visible AI watermark. Default false.
negative_prompt	string	Content to exclude; at most 500 characters.
audio_url	string	Public WAV/MP3 URL for synchronized audio. Input audio should be at least as long as the requested video; longer audio is trimmed. Not supported in reference mode.
shot_type	string	single (default) or multi. Generation from text/first frame requires prompt_extend=true for this control.
audio	boolean	Default true; false generates silent video. If false, supplied audio is not used.

Input rules

All media must be publicly accessible HTTP(S) URLs. No Base64, local paths, or external asset IDs. seconds must be a positive number.

Example

cURL

curl https://api.pixapi.ai/v1/async/videos/generations \
  -H "Authorization: Bearer $PIXAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "wan2.6-i2v-flash",
  "prompt": "A cinematic scene with smooth camera motion",
  "seconds": 5,
  "resolution": "720p",
  "n": 1,
  "providerOptions": {
    "prompt_extend": true,
    "watermark": false
  },
  "image": "https://example.com/first-frame.jpg"
}'

Python

import os
import requests

response = requests.post(
    "https://api.pixapi.ai/v1/async/videos/generations",
    headers={"Authorization": f"Bearer {os.environ['PIXAPI_KEY']}"},
    json={
  "model": "wan2.6-i2v-flash",
  "prompt": "A cinematic scene with smooth camera motion",
  "seconds": 5,
  "resolution": "720p",
  "n": 1,
  "providerOptions": {
    "prompt_extend": True,
    "watermark": False
  },
  "image": "https://example.com/first-frame.jpg"
},
)
response.raise_for_status()
print(response.json())

JavaScript

const response = await fetch('https://api.pixapi.ai/v1/async/videos/generations', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${process.env.PIXAPI_KEY}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "model": "wan2.6-i2v-flash",
  "prompt": "A cinematic scene with smooth camera motion",
  "seconds": 5,
  "resolution": "720p",
  "n": 1,
  "providerOptions": {
    "prompt_extend": true,
    "watermark": false
  },
  "image": "https://example.com/first-frame.jpg"
}),
});
if (!response.ok) throw new Error(await response.text());
console.log(await response.json());

Go

package main

import (
  "bytes"
  "fmt"
  "io"
  "net/http"
  "os"
)

func main() {
  body := []byte(`{
  "model": "wan2.6-i2v-flash",
  "prompt": "A cinematic scene with smooth camera motion",
  "seconds": 5,
  "resolution": "720p",
  "n": 1,
  "providerOptions": {
    "prompt_extend": true,
    "watermark": false
  },
  "image": "https://example.com/first-frame.jpg"
}`)
  req, err := http.NewRequest("POST", "https://api.pixapi.ai/v1/async/videos/generations", bytes.NewBuffer(body))
  if err != nil { panic(err) }
  req.Header.Set("Authorization", "Bearer " + os.Getenv("PIXAPI_KEY"))
  req.Header.Set("Content-Type", "application/json")
  resp, err := http.DefaultClient.Do(req)
  if err != nil { panic(err) }
  defer resp.Body.Close()
  result, err := io.ReadAll(resp.Body)
  if err != nil { panic(err) }
  if resp.StatusCode >= 400 { panic(string(result)) }
  fmt.Println(string(result))
}

For asynchronous requests, save the returned id and poll GET /v1/tasks/{id} until completed or failed. See task results and billing.