Kie - Image Upscale
POST
/api/v1/jobs/createTask
1x, 2x, 4x, or 8x while keeping the original aspect ratio. Detail is restored generatively, and text regions are upscaled with a fidelity pass so the text is never rewritten.upscale_factor multiplies both width and height. 1 enhances quality at the same size (denoise, sharpen, preserve text) without changing dimensions.Input limits
Output limits
input width × input height × upscale_factor² exceeds it, the request is rejected with 422 and no task is created or charged. Lower upscale_factor and retry| Input | upscale_factor | Output | Output MP |
|---|---|---|---|
| 1024×1024 | 1 | 1024×1024 | 1.05 |
| 1024×1024 | 2 (default) | 2048×2048 | 4.19 |
| 1024×1024 | 4 | 4096×4096 | 16.78 |
| 1024×1024 | 8 | 8192×8192 | 67.11 |
| 1646×1646 | 8 | — | 173 → 422 |
Output
upscale_factor (exact integers, nothing is cropped)Billing tiers
| Tier | Output total pixels |
|---|---|
| 2K | ≤ 4.19 MP |
| 4K | ≤ 16.78 MP |
| 8K | ≤ 67.11 MP |
1 (same-size enhancement) is tiered by the input size. For current prices, see kie.ai/pricing.Create Task
model=image/upscale on the unified task endpoint.Get Task Details
After submission, use the unified query endpoint to check task progress and retrieve resultscallBackUrl parameter so your service can receive completion notifications instead of polling for task status. Callbacks may be delivered more than once — deduplicate by taskId.Related Resources
Callbacks
Request
Body Params application/jsonRequired
Responses
Request Request Example
Shell
JavaScript
Java
Swift
curl --location 'https://api.kie.ai/api/v1/jobs/createTask' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "image/upscale",
"callBackUrl": "https://your-domain.com/api/callback",
"input": {
"image_url": "https://static.aiquickdraw.com/tools/example/1794319554733_LhkHjUSS.png",
"upscale_factor": "2"
}
}'Response Response Example
200 - Example 1
{
"code": 200,
"msg": "success",
"data": {
"taskId": "task_kie_image_upscale_example"
}
}