> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developer.ideogram.ai/v1/api-reference/generate/post-upscale-image/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.ideogram.ai/_mcp/server.

# Upscale

POST https://api.ideogram.ai/upscale
Content-Type: multipart/form-data

Upscale provided images synchronously with an optional prompt.

Supported image formats include JPEG, PNG, and WebP.

Images links are available for a limited period of time; if you would like to keep the image, you must download it.


Reference: https://developer.ideogram.ai/v1/api-reference/generate/post-upscale-image

## Authentication

- `Api-Key` header (required) — API key for access control. Use in the header with the name \"Api-Key\"

## Request

### Body (multipart/form-data)

This endpoint expects a multipart form containing a file.

- `image_request` (UpscaleInitialImageRequest, required)
- `image_file` (file, required) — An image binary (max size 25MB); only JPEG, WebP and PNG formats are supported at this time.

## Response

### 200

Image(s) generated successfully.

- `created` (datetime, required) — The time the request was created.
- `request_id` (string, optional) — URL-safe base64 ID of the sampling request. Present when the caller supplied `webhook_url` and the request was accepted for async delivery; in that case `data` is omitted and the generated images will be POSTed to the customer's `webhook_url` when ready.
- `data` (list of ImageObject, optional) — A list of ImageObjects that contain the generated image(s).

## Errors

### 400 Bad Request Error

Invalid input provided.

- `any`

### 403 Forbidden Error

Not authorized to generate an image.

- `any`

### 422 Unprocessable Entity Error

Prompt or provided image failed safety check.

- `error` (string, required)

### 429 Too Many Requests Error

Too many requests.

- `any`

## Types

### ImageObject

- `prompt` (string, required) — The prompt used for the generation. This may be different from the original prompt.
- `resolution` (string, required) — The resolution of the final image.
- `is_image_safe` (boolean, required) — Whether this request passes safety checks. If false, the url field will be empty.
- `seed` (integer, required) — Random seed. Set for reproducible generation.
- `url` (string, optional, nullable) — The direct link to the image generated.
- `upscaled_resolution` (string, optional) — Output resolution, only used if operations alters image dimensions, such as upscale, crop etc.
- `style_type` (enum, optional) — The style type to generate with; this is only applicable for models V_2 and above and should not be specified for model versions V_1.
  - Allowed values: `AUTO`, `GENERAL`, `FICTION`, `REALISTIC`, `DESIGN`, `RENDER_3D`, `ANIME`

## Examples

**Request**

```json
{
  "image_file": "<file: <file1>>",
  "image_request": {
    "resemblance": 55,
    "detail": 90
  }
}
```

**Response**

```json
{
  "created": {},
  "data": [
    {
      "prompt": "A photo of a cat",
      "resolution": "1280x800",
      "is_image_safe": true,
      "seed": 12345,
      "url": "https://ideogram.ai/api/images/ephemeral/xtdZiqPwRxqY1Y7NExFmzB.png?exp=1743867804&sig=e13e12677633f646d8531a153d20e2d3698dca9ee7661ee5ba4f3b64e7ec3f89",
      "style_type": "GENERAL"
    }
  ]
}
```

**SDK Code**

```python
import requests
import json

response = requests.post(
  "https://api.ideogram.ai/upscale",
  headers={
    "Api-Key": "<apiKey>"
  },
  data={
    "image_request": json.dumps({
      "resemblance": 55,
      "detail": 90
    })
  },
  files={
    "image_file": open("<file1>", "rb")
  }
)
print(response.json())
with open('output.png', 'wb') as f:
  f.write(requests.get(response.json()['data'][0]['url']).content)

```

```typescript
const formData = new FormData();
formData.append('image_request', JSON.stringify({
  resemblance: 55,
  detail: 90
}));
formData.append('image_file', new Blob([fs.readFileSync("<file1>")], {
  type: 'image/png'
}));
const response = await fetch('https://api.ideogram.ai/upscale', {
  method: 'POST',
  headers: { 'Api-Key': '<apiKey>' },
  body: formData
});
const data = await response.json();
console.log(data);

```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.ideogram.ai/upscale"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_file\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_request\"\r\n\r\n{\n  \"resemblance\": 55,\n  \"detail\": 90\n}\r\n-----011000010111000001101001--\r\n")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Api-Key", "<apiKey>")
	req.Header.Add("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.ideogram.ai/upscale")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Api-Key"] = '<apiKey>'
request["Content-Type"] = 'multipart/form-data; boundary=---011000010111000001101001'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_file\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_request\"\r\n\r\n{\n  \"resemblance\": 55,\n  \"detail\": 90\n}\r\n-----011000010111000001101001--\r\n"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.ideogram.ai/upscale")
  .header("Api-Key", "<apiKey>")
  .header("Content-Type", "multipart/form-data; boundary=---011000010111000001101001")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_file\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_request\"\r\n\r\n{\n  \"resemblance\": 55,\n  \"detail\": 90\n}\r\n-----011000010111000001101001--\r\n")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.ideogram.ai/upscale', [
  'multipart' => [
    [
        'name' => 'image_file',
        'filename' => '<file1>',
        'contents' => null
    ],
    [
        'name' => 'image_request',
        'contents' => '{
  "resemblance": 55,
  "detail": 90
}'
    ]
  ]
  'headers' => [
    'Api-Key' => '<apiKey>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.ideogram.ai/upscale");
var request = new RestRequest(Method.POST);
request.AddHeader("Api-Key", "<apiKey>");
request.AddParameter("multipart/form-data; boundary=---011000010111000001101001", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_file\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image_request\"\r\n\r\n{\n  \"resemblance\": 55,\n  \"detail\": 90\n}\r\n-----011000010111000001101001--\r\n", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Api-Key": "<apiKey>",
  "Content-Type": "multipart/form-data; boundary=---011000010111000001101001"
]
let parameters = [
  [
    "name": "image_file",
    "fileName": "<file1>"
  ],
  [
    "name": "image_request",
    "value": "{
  \"resemblance\": 55,
  \"detail\": 90
}"
  ]
]

let boundary = "---011000010111000001101001"

var body = ""
var error: NSError? = nil
for param in parameters {
  let paramName = param["name"]!
  body += "--\(boundary)\r\n"
  body += "Content-Disposition:form-data; name=\"\(paramName)\""
  if let filename = param["fileName"] {
    let contentType = param["content-type"]!
    let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
    if (error != nil) {
      print(error as Any)
    }
    body += "; filename=\"\(filename)\"\r\n"
    body += "Content-Type: \(contentType)\r\n\r\n"
    body += fileContent
  } else if let paramValue = param["value"] {
    body += "\r\n\r\n\(paramValue)"
  }
}

let request = NSMutableURLRequest(url: NSURL(string: "https://api.ideogram.ai/upscale")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```