Nano Banana 2 API

Nano Banana 2 images by Google with a wide choice of aspect ratios, including the elongated 1:4, 4:1, 1:8 and 8:1. From a description and edits of your pictures (up to 10 references), quality up to 4K. You can let the model search Google for current facts and real places.

Developer: GoogleModel key in the API: banana_pro

For AI assistants:Download .md All documentation .md Open as text

Connect in three steps

Get a keyCreate a key in the dashboard after you confirm your email. One key opens every model.
Check the pricePOST /v1/price shows the cost of a run in advance, without charging you.
Run a task and collect the resultPOST /v1/tasks starts a task, GET /v1/tasks/{id} shows its status and files.

Ready-to-use code

Replace YOUR_API_KEY with your key. The code starts a task and waits for the result. In cURL, repeat the second request with the id from the first response instead of TASK_ID until status becomes succeeded.

cURLPythonNode.js

cURL

curl -X POST "https://api.cyhub.ai/v1/tasks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "banana_pro",
  "settings": {
    "model": "nano-banana-2",
    "prompt": "Горный хребет на рассвете, туман в долинах",
    "size": "21:9",
    "resolution": "2K"
  }
}'

curl "https://api.cyhub.ai/v1/tasks/TASK_ID" \
  -H "Authorization: Bearer YOUR_API_KEY"

Python

import time

import requests

API = "https://api.cyhub.ai/v1"
HEADERS = {"Authorization": "Bearer YOUR_API_KEY"}

body = {
    "model": "banana_pro",
    "settings": {
        "model": "nano-banana-2",
        "prompt": "Горный хребет на рассвете, туман в долинах",
        "size": "21:9",
        "resolution": "2K",
    },
}

response = requests.post(f"{API}/tasks", json=body, headers=HEADERS, timeout=60)
response.raise_for_status()
task = response.json()
while task["status"] in ("queued", "running"):
    time.sleep(5)
    task = requests.get(f"{API}/tasks/{task['id']}", headers=HEADERS, timeout=30).json()
print(task["status"], task["result"])

Node.js

const API = "https://api.cyhub.ai/v1";
const HEADERS = { Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json" };

const body = {
  "model": "banana_pro",
  "settings": {
    "model": "nano-banana-2",
    "prompt": "Горный хребет на рассвете, туман в долинах",
    "size": "21:9",
    "resolution": "2K"
  }
};

async function main() {
  let response = await fetch(`${API}/tasks`, { method: "POST", headers: HEADERS, body: JSON.stringify(body) });
  if (!response.ok) throw new Error(await response.text());
  let task = await response.json();
  while (task.status === "queued" || task.status === "running") {
    await new Promise((resolve) => setTimeout(resolve, 5000));
    response = await fetch(`${API}/tasks/${task.id}`, { headers: HEADERS });
    task = await response.json();
  }
  console.log(task.status, task.result);
}

main();

Get a key

Price before the run

Prices as of 15.10.2026: from 10 ₽. POST /v1/price shows the exact price of your settings.

Mode	Price
Nano Banana 2	from 12 ₽
Simplified call: banana	from 10 ₽

Send the same settings to POST /v1/price: the response shows the price of the run without charging you.

cURL

curl -X POST "https://api.cyhub.ai/v1/price" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "banana_pro",
  "settings": {
    "model": "nano-banana-2",
    "prompt": "Горный хребет на рассвете, туман в долинах",
    "size": "21:9",
    "resolution": "2K"
  }
}'

amount_minor: the price of the run in minor units (kopecks for rubles)
currency: the wallet currency
available_minor: how much your balance has for new tasks right now

Nano Banana 2

The version with a wide choice of aspect ratios, including the elongated 1:4, 4:1, 1:8 and 8:1, and up to 10 references.

Value of the model field: nano-banana-2

Price in this mode from 12 ₽.

Parameters

Model parameters go inside settings. Omitted optional fields take their default values.

promptRequired: What to draw, or what to do with the reference images.
Type: StringMinimum characters: 1Maximum characters: 5000
resolutionOptional: Quality: 1K, 2K or 4K. The price depends on it.
Type: StringAllowed values: 1K2K4KDefault: "1K"
output_formatOptional: Result file format.
Type: StringAllowed values: pngjpgDefault: "png"
google_searchOptional: Banana 2 only: let the model search Google when it needs current facts or real places.
Type: BooleanDefault: false
sizeOptional: Aspect ratio.
Type: StringAllowed values: 1:11:41:82:33:23:44:14:34:55:48:19:1616:921:9Default: "1:1"
image_urlsOptional: Reference image URLs, up to 10.
Type: List (String, uri)Maximum items: 10

Parameters not listed here are not accepted: the response is 422 unknown_setting.

Input

References are URLs of JPEG, PNG or WebP images, up to 30 MB each.

Field	Accepts	Formats	Files	File size up to
`image_urls`	Images	jpeg, jpg, png, webp	10	30 MB

How to send files

Request example

Send this JSON to POST /v1/tasks with your API key. To check the price first, send the same JSON to POST /v1/price.

Wide banner

JSON

{
  "model": "banana_pro",
  "settings": {
    "model": "nano-banana-2",
    "prompt": "Горный хребет на рассвете, туман в долинах",
    "size": "21:9",
    "resolution": "2K"
  }
}

The price is calculated when the task is accepted, currency RUB.

Complete generation example

Output

One image per run in the chosen format.

Kind	Formats	How many	Note
`image`	png, jpg	1	The format is set by output_format.

A finished task as GET /v1/tasks/{id} returns it (some fields left out). The caption may sit on the task or on a single file and may be empty; the model picks the file name.

JSON

{
  "id": "7c9e6679-7425-40de-944b-e07fc1f90ae7",
  "status": "succeeded",
  "finished_at": "2026-10-01T12:03:41+00:00",
  "result": {
    "caption": "Caption of the result: the model and its settings",
    "texts": [],
    "files_expire_at": "2026-10-08T12:03:41+00:00",
    "files_expired": false,
    "artifacts": [
      {
        "index": 0,
        "kind": "image",
        "filename": "image.png",
        "size": 1843200,
        "caption": "",
        "download_path": "/v1/tasks/7c9e6679-7425-40de-944b-e07fc1f90ae7/artifacts/0"
      }
    ]
  }
}

How to read the result and download files

Simplified call: model banana

Banana 2 images from a description, optionally with reference images: photo editing, style changes, one scene made from several photos.

Price in this mode from 10 ₽.

Parameters

Model parameters go inside settings. Omitted optional fields take their default values.

promptRequired: What to draw, or what to do with the reference images.
Type: StringMinimum characters: 1Maximum characters: 5000
image_urlsOptional: Reference image URLs, up to 10. Without them the image is made from the description only.
Type: List (String, uri)Maximum items: 10
aspect_ratioOptional: Aspect ratio. adaptive: the model picks it itself, from the description or the reference image.
Type: StringAllowed values: adaptive1:19:163:44:316:9Default: "adaptive"

Parameters not listed here are not accepted: the response is 422 unknown_setting.

Input

Reference images are URLs of JPEG, PNG or WebP files, up to 10 MB each. The link must open without signing in and without a redirect. If an image does not fit, the task ends with an error and no money is charged.
The aspect ratio is set by aspect_ratio: 1:1, 9:16, 3:4, 4:3 or 16:9. The default is adaptive: the model picks the aspect ratio itself, from the description or the reference image, and you can describe it in words in the description: "vertical", "horizontal" or "square".

Field	Accepts	Formats	Files	File size up to
`image_urls`	Images	jpeg, jpg, png, webp	10	10 MB

How to send files

Request example

Send this JSON to POST /v1/tasks with your API key. To check the price first, send the same JSON to POST /v1/price.

Image from a prompt

JSON

{
  "model": "banana",
  "settings": {
    "prompt": "Маяк на скале в шторм, кинематографичный свет",
    "aspect_ratio": "16:9"
  }
}

Editing your own image

JSON

{
  "model": "banana",
  "settings": {
    "prompt": "Посади этого кота на подоконник, за окном дождь",
    "image_urls": [
      "https://example.com/cat.jpg"
    ]
  }
}

The price is calculated when the task is accepted, currency RUB.

Complete generation example

Output

One image per run.

Kind	Formats	How many	Note
`image`	png, jpg	1

A finished task as GET /v1/tasks/{id} returns it (some fields left out). The caption may sit on the task or on a single file and may be empty; the model picks the file name.

JSON

{
  "id": "7c9e6679-7425-40de-944b-e07fc1f90ae7",
  "status": "succeeded",
  "finished_at": "2026-10-01T12:03:41+00:00",
  "result": {
    "caption": "Caption of the result: the model and its settings",
    "texts": [],
    "files_expire_at": "2026-10-08T12:03:41+00:00",
    "files_expired": false,
    "artifacts": [
      {
        "index": 0,
        "kind": "image",
        "filename": "image.png",
        "size": 1843200,
        "caption": "",
        "download_path": "/v1/tasks/7c9e6679-7425-40de-944b-e07fc1f90ae7/artifacts/0"
      }
    ]
  }
}

How to read the result and download files

Try Nano Banana 2 through the API

One key opens every CyHUB model. Payment in rubles, and you see the price before the run.

Get an API key

Nano Banana 2 API

Connect in three steps

Ready-to-use code

Price before the run

Nano Banana 2

Parameters

Input

Request example

Output

Simplified call: model banana

Parameters

Input

Request example

Output

See also

Try Nano Banana 2 through the API