> This page is for version v2 (default).
> For other versions, use one of these documentation indexes:
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> - v1: https://developer.ideogram.ai/v1/llms.txt

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

# Generate with GPT Image 2.5 Sunburst

POST https://api.ideogram.ai/v2/image/generate/gpt-image-2-5-sunburst
Content-Type: multipart/form-data

Generate images with GPT Image 2.5 Sunburst, the quality variant of GPT
Image 2.5, with finer detail at higher latency than Flare. Optionally
upload source images as `images` using `multipart/form-data` to edit
them with the prompt. Returns results directly by default; set `async`
or supply a `webhook_url` to get a `generation_id` and poll
`GET /v2/generations/{generation_id}`.

Reference: https://developer.ideogram.ai/api-reference/images/generate/gpt-image-2-5-sunburst

## Authentication

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

## Request

### Query parameters

- `dry_run` (boolean, optional, default: false) — When true, the request is validated and priced but not run: nothing is generated, stored, or billed, and no safety review is performed. The response is a `PriceQuote` object instead of the usual response for this endpoint. Send exactly the request you would send to generate, so the quote reflects the same options.

### Body (multipart/form-data)

This endpoint expects a multipart form with multiple files.

- `prompt` (string, required) — The prompt to generate images from, or the edit instruction to apply when source images are supplied. It is passed to the model as written.
- `images` (files, optional) — Optional source images to edit (max 16, max 25MB each; JPEG, PNG, or WEBP). Multipart requests only.
- `mask` (file, optional) — An optional mask for the first source image (max 25MB; JPEG, PNG, or WEBP). Multipart requests only. Fully transparent pixels mark the areas to edit. The mask must have the same dimensions as the first source image, and requires source images in the same request.
- `background` (enum, optional) — The output background. `transparent` returns images with an alpha channel, `opaque` forces a solid background, and `auto` lets the model decide from the prompt.
- `quality` (enum, optional) — How much rendering effort the model spends. Lower tiers return sooner and cost less; `auto` lets the model choose, which it currently renders at `high`.
- `num_images` (integer, optional) — The number of images to generate.
- `seed` (integer, optional) — Random seed. Set for reproducible generation.
- `aspect_ratio` (string, optional) — The requested output aspect ratio, for example "1:1", "16:9", or "9:16". Ignored when `resolution` is provided. Defaults to "1:1".
- `resolution` (string, optional) — Exact output resolution, formatted as "WIDTHxHEIGHT", for example "2048x2048" or "1920x1088". When provided, this takes precedence over `aspect_ratio`. The dimensions must satisfy GPT Image 2.5 Sunburst constraints: each side is a multiple of 16, the largest side is at most 3840px, the long:short ratio is at most 3:1, and total pixels are between 655360 and 8294400 inclusive.
- `async` (boolean, optional) — When false (the default), the request waits until the images are ready and returns them in `data`. When true, the request returns as soon as it is accepted; poll `GET /v2/generations/{generation_id}` with the returned `generation_id` for the result.
- `webhook_url` (string, optional) — HTTPS URL that Ideogram delivers the generated result to. Ideogram sends a JSON POST to this URL once all images for the request have finished generating. The body mirrors the synchronous generate response: `request_id`, `created`, and a `data` array containing every generated image (`url`, `prompt`, `resolution`, `seed`, `is_image_safe`). Each delivery is signed with Ed25519 and verifiable against the public keys at `https://api.ideogram.ai/v1/.well-known/jwks.json`. Must be HTTPS; private and loopback hosts and the cloud metadata service are rejected.

## Response

### 200

The generated images (synchronous requests), or an acknowledgement to poll with `GET /v2/generations/{generation_id}` (`async` requests).

- `generation_id` (string, required) — URL-safe base64 ID of the generation. Use it to poll `GET /v2/generations/{generation_id}`.
- `seed` (integer, required) — Random seed. Set for reproducible generation.
- `data` (list of GeneratedImageObject, optional) — The generated images, in generation order. Present only for synchronous requests (`async` omitted or false).

## Errors

### 400 Bad Request Error

Invalid input provided.

- `any`

### 401 Unauthorized Error

Unauthorized.

- `any`

### 402 Payment Required Error

Insufficient credits or quota.

- `error` (string, required) — A message describing why the generation request was rejected.
- `reject_reason` (enum, required) — The account or usage limit that rejected a generation request.
  - Allowed values: `insufficient_funds`, `subscription_required`, `daily_limit`, `priority_credit_required`, `inflight_limit`, `feature_limit`
- `max_inflight_requests` (integer, optional) — How many generations the account may have in progress at once on the queue this request resolved to. Present when `reject_reason` is `inflight_limit`.
- `task_completion_speed` (enum, optional) — The queue this request resolved to. Present when `reject_reason` is `inflight_limit`.
  - Allowed values: `fast`, `slow`

### 422 Unprocessable Entity Error

The prompt did not pass safety checks.

- `any`

### 429 Too Many Requests Error

Too many requests.

- `error` (string, required) — A message describing why the generation request was rejected.
- `reject_reason` (enum, required) — The account or usage limit that rejected a generation request.
  - Allowed values: `insufficient_funds`, `subscription_required`, `daily_limit`, `priority_credit_required`, `inflight_limit`, `feature_limit`
- `max_inflight_requests` (integer, optional) — How many generations the account may have in progress at once on the queue this request resolved to. Present when `reject_reason` is `inflight_limit`.
- `task_completion_speed` (enum, optional) — The queue this request resolved to. Present when `reject_reason` is `inflight_limit`.
  - Allowed values: `fast`, `slow`

### 500 Internal Server Error

Internal server error.

- `any`

### 503 Service Unavailable Error

The endpoint is temporarily unavailable.

- `any`

## Types

### GeneratedImageObject

One generated output image.

- `prompt` (string, required) — The final prompt the image was generated from.
- `resolution` (string, required) — The resolution of the generated image, formatted as "WIDTHxHEIGHT".
- `is_image_safe` (boolean, required) — Whether the image passed safety checks. If false, `url` is empty.
- `seed` (integer, required) — Random seed. Set for reproducible generation.
- `url` (string, optional, nullable) — The direct link to the generated image. Empty when the image did not pass safety checks.

## Examples

**Request**

```json
{
  "images": [],
  "mask": "<file: <file1>>",
  "prompt": "string"
}
```

**Response**

```json
{
  "generation_id": "generation_id",
  "seed": 12345,
  "data": [
    {
      "prompt": "prompt",
      "resolution": "1024x1024",
      "is_image_safe": true,
      "seed": 12345,
      "url": "https://openapi-generator.tech"
    },
    {
      "prompt": "prompt",
      "resolution": "1024x1024",
      "is_image_safe": true,
      "seed": 12345,
      "url": "https://openapi-generator.tech"
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://api.ideogram.ai/v2/image/generate/gpt-image-2-5-sunburst"

files = { "mask": "open('<file1>', 'rb')" }
payload = {
    "aspect_ratio": ,
    "async": ,
    "background": ,
    "num_images": ,
    "prompt": "string",
    "quality": ,
    "resolution": ,
    "seed": ,
    "webhook_url": 
}
headers = {"Api-Key": "<apiKey>"}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.ideogram.ai/v2/image/generate/gpt-image-2-5-sunburst';
const form = new FormData();
form.append('aspect_ratio', '');
form.append('async', '');
form.append('background', '');
form.append('mask', '<file1>');
form.append('num_images', '');
form.append('prompt', 'string');
form.append('quality', '');
form.append('resolution', '');
form.append('seed', '');
form.append('webhook_url', '');

const options = {method: 'POST', headers: {'Api-Key': '<apiKey>'}};

options.body = form;

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

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

func main() {

	url := "https://api.ideogram.ai/v2/image/generate/gpt-image-2-5-sunburst"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"aspect_ratio\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"background\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mask\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"num_images\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"quality\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"seed\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\n\r\n-----011000010111000001101001--\r\n")

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

	req.Header.Add("Api-Key", "<apiKey>")

	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/v2/image/generate/gpt-image-2-5-sunburst")

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

request = Net::HTTP::Post.new(url)
request["Api-Key"] = '<apiKey>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"aspect_ratio\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"background\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mask\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"num_images\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"quality\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"seed\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\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/v2/image/generate/gpt-image-2-5-sunburst")
  .header("Api-Key", "<apiKey>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"aspect_ratio\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"background\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mask\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"num_images\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"quality\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"seed\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\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/v2/image/generate/gpt-image-2-5-sunburst', [
  'multipart' => [
    [
        'name' => 'mask',
        'filename' => '<file1>',
        'contents' => null
    ],
    [
        'name' => 'prompt',
        'contents' => 'string'
    ]
  ]
  'headers' => [
    'Api-Key' => '<apiKey>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.ideogram.ai/v2/image/generate/gpt-image-2-5-sunburst");
var request = new RestRequest(Method.POST);
request.AddHeader("Api-Key", "<apiKey>");
request.AddParameter("undefined", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"aspect_ratio\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"background\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"mask\"; filename=\"<file1>\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"num_images\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"quality\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"seed\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"webhook_url\"\r\n\r\n\r\n-----011000010111000001101001--\r\n", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Api-Key": "<apiKey>"]
let parameters = [
  [
    "name": "aspect_ratio",
    "value": 
  ],
  [
    "name": "async",
    "value": 
  ],
  [
    "name": "background",
    "value": 
  ],
  [
    "name": "mask",
    "fileName": "<file1>"
  ],
  [
    "name": "num_images",
    "value": 
  ],
  [
    "name": "prompt",
    "value": "string"
  ],
  [
    "name": "quality",
    "value": 
  ],
  [
    "name": "resolution",
    "value": 
  ],
  [
    "name": "seed",
    "value": 
  ],
  [
    "name": "webhook_url",
    "value": 
  ]
]

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/v2/image/generate/gpt-image-2-5-sunburst")! 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()
```