> 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. # Upscale with Nano Banana Pro POST https://api.ideogram.ai/v2/image/upscale/nano-banana-pro Content-Type: multipart/form-data Regenerate an image at a higher `resolution_tier` (1K, 2K, or 4K) while preserving its content, composition, and style. Upload the source `image` using `multipart/form-data`. 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/upscale/nano-banana-pro ## 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 containing a file. - `image` (file, required) — The source image to upscale, in a common format such as JPEG, PNG, or WEBP, up to 50MB. Multipart requests only. The uploaded image is used for this request only and is not stored. - `prompt` (string, optional) — Optional short guidance for the enhancement, appended to the model's upscaling instruction. When omitted, the image is upscaled as-is. - `resolution_tier` (enum, optional) — The output resolution tier. The model sizes its output by tier at the source image's aspect ratio; exact pixel dimensions cannot be requested. Rejected when the source is already at or above the requested tier. Defaults to "2K". - `seed` (integer, optional) — Random seed. Set for reproducible generation. - `async` (boolean, optional) — When false (the default), the request blocks until the upscaled image is ready and returns it in `data`. When true, the request returns as soon as it is accepted; poll `GET /v2/generations/{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 upscaled image (synchronous requests), or an acknowledgement to poll with `GET /v2/generations/{generation_id}` (`async` requests). - `generation_id` (string, required) — The generation ID to poll with `GET /v2/generations/{generation_id}`. - `seed` (integer, required) — Random seed. Set for reproducible generation. - `width` (integer, required) — The output width in pixels. - `height` (integer, required) — The output height in pixels. - `data` (list of UpscaleImageObject, optional) — The upscaled image. 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` ### 404 Not Found Error The source image was not found. - `any` ### 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 ### UpscaleImageObject One upscaled output image. - `resolution` (string, required) — The resolution of the upscaled 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 upscaled image. Empty when the image did not pass safety checks. ## Examples **Request** ```json { "image": "" } ``` **Response** ```json { "generation_id": "generation_id", "seed": 12345, "width": 0, "height": 6, "data": [ { "resolution": "2048x2048", "is_image_safe": true, "seed": 12345, "url": "https://openapi-generator.tech" }, { "resolution": "2048x2048", "is_image_safe": true, "seed": 12345, "url": "https://openapi-generator.tech" } ] } ``` **SDK Code** ```python import requests url = "https://api.ideogram.ai/v2/image/upscale/nano-banana-pro" files = { "image": "open('string', 'rb')" } payload = { "async": , "prompt": , "resolution_tier": , "seed": , "webhook_url": } headers = {"Api-Key": ""} response = requests.post(url, data=payload, files=files, headers=headers) print(response.json()) ``` ```javascript const url = 'https://api.ideogram.ai/v2/image/upscale/nano-banana-pro'; const form = new FormData(); form.append('async', ''); form.append('image', 'string'); form.append('prompt', ''); form.append('resolution_tier', ''); form.append('seed', ''); form.append('webhook_url', ''); const options = {method: 'POST', headers: {'Api-Key': ''}}; 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/upscale/nano-banana-pro" payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image\"; filename=\"string\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution_tier\"\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", "") 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/upscale/nano-banana-pro") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Post.new(url) request["Api-Key"] = '' request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image\"; filename=\"string\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution_tier\"\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 response = Unirest.post("https://api.ideogram.ai/v2/image/upscale/nano-banana-pro") .header("Api-Key", "") .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image\"; filename=\"string\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution_tier\"\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 request('POST', 'https://api.ideogram.ai/v2/image/upscale/nano-banana-pro', [ 'multipart' => [ [ 'name' => 'image', 'filename' => 'string', 'contents' => null ] ] 'headers' => [ 'Api-Key' => '', ], ]); echo $response->getBody(); ``` ```csharp using RestSharp; var client = new RestClient("https://api.ideogram.ai/v2/image/upscale/nano-banana-pro"); var request = new RestRequest(Method.POST); request.AddHeader("Api-Key", ""); request.AddParameter("undefined", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"async\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"image\"; filename=\"string\"\r\nContent-Type: application/octet-stream\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"prompt\"\r\n\r\n\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"resolution_tier\"\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": ""] let parameters = [ [ "name": "async", "value": ], [ "name": "image", "fileName": "string" ], [ "name": "prompt", "value": ], [ "name": "resolution_tier", "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/upscale/nano-banana-pro")! 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() ```