Qwen Image 3.0 Pro Image to Image

POST Base URL: https://api.hiapi.ai /v1/tasks

Image, video, and audio models are called through the Unified Async API POST /v1/tasks endpoint; only the input fields differ (see input parameters below).

Model summary

Model name	qwen-image-3.0-pro/image-to-image
Type	Image to image
Endpoint	POST /v1/tasks
Pricing	See HiAPI Pricing

Qwen Image 3.0 Pro Image to Image generates reference-guided images through the unified asynchronous API.

Production guidance

In production, prefer callback.url for terminal task notifications.
State the subjects, composition, and wording that must be preserved.
For exact in-image wording, set prompt_extend to false.

Best suited for

High-fidelity refinement

For complex materials, dense layouts, and final-asset refinement.

image_urlsprompt

Format control

Choose square, landscape, portrait, or ultrawide output.

aspect_ratio

Request parameters

POST https://api.hiapi.ai/v1/tasks

# Create an async task — returns taskId immediately (generation runs async)
# Replace YOUR_API_KEY with your account API key
curl -X POST "https://api.hiapi.ai/v1/tasks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "qwen-image-3.0-pro/image-to-image",
  "input": {
    "prompt": "Refine the supplied image into a premium editorial photograph while preserving its composition and main subject. No added text or logo.",
    "image_urls": [
      "https://dev-static.hiapi.ai/model-covers/2026/08/10/1786343693249-49193d12be6a4009-qwen-image-3-0-pro-golden.webp"
    ],
    "aspect_ratio": "16:9",
    "resolution": "2K",
    "output_format": "png",
    "prompt_extend": false
  }
}'

import requests, json

# Business params — fields vary by model (see the model page)
payload = json.loads(r'''
{
  "model": "qwen-image-3.0-pro/image-to-image",
  "input": {
    "prompt": "Refine the supplied image into a premium editorial photograph while preserving its composition and main subject. No added text or logo.",
    "image_urls": [
      "https://dev-static.hiapi.ai/model-covers/2026/08/10/1786343693249-49193d12be6a4009-qwen-image-3-0-pro-golden.webp"
    ],
    "aspect_ratio": "16:9",
    "resolution": "2K",
    "output_format": "png",
    "prompt_extend": false
  }
}
''')

# Create an async task — returns taskId immediately (generation runs async)
resp = requests.post(
    "https://api.hiapi.ai/v1/tasks",
    headers={"Authorization": "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
    json=payload,
)
print(resp.json())  # Returns { code, message, data: { taskId } }

// Create an async task — returns taskId immediately (generation runs async)
// Replace YOUR_API_KEY with your account API key
const resp = await fetch("https://api.hiapi.ai/v1/tasks", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "qwen-image-3.0-pro/image-to-image",
  "input": {
    "prompt": "Refine the supplied image into a premium editorial photograph while preserving its composition and main subject. No added text or logo.",
    "image_urls": [
      "https://dev-static.hiapi.ai/model-covers/2026/08/10/1786343693249-49193d12be6a4009-qwen-image-3-0-pro-golden.webp"
    ],
    "aspect_ratio": "16:9",
    "resolution": "2K",
    "output_format": "png",
    "prompt_extend": false
  }
}),
});
console.log(await resp.json()); // Returns { code, message, data: { taskId } }

model string required

Fixed value qwen-image-3.0-pro/image-to-image.

example qwen-image-3.0-pro/image-to-image

input object required

Model-specific parameter object.

prompt string required

Positive prompt describing image content, style, and composition; up to 18,000 characters.

image_urls string[] required

Reference image URLs, 1–3 images. JPEG, PNG, WEBP, BMP, GIF, or TIFF up to 10 MB each; SVG is not supported.

aspect_ratio enum optional

Width-height ratio of the output image.

default 1:1 enum: 1:13:22:34:33:416:99:1621:9

resolution enum optional

Output resolution tier.

default 1K enum: 1K2K

output_format enum optional

Generated image file format.

default png enum: pngjpeg

prompt_extend boolean optional

Whether to automatically enrich the prompt.

default true

negative_prompt string optional

Content to avoid in the image, up to 500 characters.

default ""

seed integer optional

Random seed from 0 to 2147483647.

callback object optional

Optional callback configuration. In production, pass callback.url for terminal task notifications.

url string required

HTTPS URL that receives terminal task notifications.

example https://your-domain.com/hiapi/callback

when enum optional

Callback trigger timing. Use final.

default final enum: final

Example requests

Reference-guided refinement

Uses the verified request structure.

Request body

{
  "model": "qwen-image-3.0-pro/image-to-image",
  "input": {
    "prompt": "Refine the supplied image into a premium editorial photograph while preserving its composition and main subject. No added text or logo.",
    "image_urls": [
      "https://dev-static.hiapi.ai/model-covers/2026/08/10/1786343693249-49193d12be6a4009-qwen-image-3-0-pro-golden.webp"
    ],
    "aspect_ratio": "16:9",
    "resolution": "2K",
    "output_format": "png",
    "prompt_extend": false
  }
}

Getting the result

A successful submission returns a taskId immediately.
In production, prefer callback.url; for local debugging, poll GET /v1/tasks/:id.
When status=success, download the image from output[].url.

FAQ

How should I choose Standard or Pro?

Choose Standard for fast exploration and regular generation; choose Pro for richer detail, complex materials, and final assets.