---
title: "Nano Banana 2"
method: POST
path: "/api/v1/nano-banana-2"
tags: ["ImageAPI"]
---

# Nano Banana 2

`POST /api/v1/nano-banana-2`

**Pricing** — per image, in tokens (USD at $0.02/token):

| image_size | tokens | USD |
|---|---|---|
| 0.5k | 3 | $0.060 |
| 1k | 3.3 | $0.066 |
| 2k | 5 | $0.100 |
| 4k | 7.5 | $0.150 |

Returns an `img_uuid`; poll GET /api/v1/jobs/detail (or use `custom_callback_url`) to get the generated image.

## Headers

- `Authorization` string

## Request body

- object
  - `prompt` string, required — Text prompt describing the image.
  - `ratio` 'auto' | '1:1' | '16:9' | '9:16' | '4:3' | '3:4' | '2:3' | '3:2' | '4:5' | '5:4' | '21:9' | '1:4' | '4:1' | '1:8' | '8:1' — Aspect ratio.
  - `image_size` '0.5k' | '1k' | '2k' | '4k' — Output resolution. Pricing (tokens/image): 0.5k: 3, 1k: 3.3, 2k: 5, 4k: 7.5.
  - `web_search` boolean — Enable web search grounding.
  - `thinking_level` 'High' | 'Minimal' — Reasoning depth.
  - `custom_callback_url` string, uri — Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt.

## Response `200`

- object
  - `code` integer, required
  - `msg` string, required
  - `data` object, required
    - `img_uuid` string, required

## Other responses

- `401`

---

[API](https://skmtc.net/goenhance/apis/goenhance-api.md) · [All operations](https://skmtc.net/goenhance/apis/goenhance-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/goenhance/goenhance-api/versions/0f636e1b6caf/schema)