Nano Banana 2

Nano Banana 2 is Google’s latest image generation and editing model, also called Gemini 3.1 Flash Image, built to combine fast “Flash” speed with stronger visual quality, sharper instruction-following, and more precise edits.

Inference

$0.08-$0.16 per image

Text to Image API

Image to Image API

New

API

Capability

Nano Banana 2 Image to Image API

Input Image*

Reference image(s). Formats: jpeg, png, webp. Max 30MB each. Up to 14 images.

Drag and drop an image, or click to browse

Supports JPEG, PNG, WEBP. Max 30MB. You can also paste from clipboard (Ctrl+V).

Prompt*

Describe the desired transformation (max 20,000 chars)

Aspect Ratio

Resolution

$0.08/image

Add Funds

Result

Idle

Results will appear here

Cost: $0.08/image

Nano Banana 2 API Implementation Guide

Create Account

Get API Key

Generate your API key from the dashboard and set it as an environment variable.

export MODELHUNTER_KEY="your_api_key"

Go to Dashboard →

Make Your First Call

Follow the API documentation for complete code examples in cURL, JavaScript, and Python, including request format, polling, and error handling.

View API Documentation →

Nano Banana 2 Key Info

Capabilities

Text to Image API
Image to Image API

Pricing

Price per image by resolution

1K	2K	4K
$0.08/image	$0.12/image	$0.16/image

$0.08 per image (1K)

Use Cases

Text to Image API

Image to Image API

Output Formats

jpg

png

Nano Banana 2 API Documentation

Run the playground first, then open the full API docs for integration details.

About

Edit and transform images with up to 14 reference images

Code Examples

request.sh

1curl -X POST https://api.modelhunter.ai/api/v1/gemini/image-to-image \
2  -H "Authorization: Bearer YOUR_API_KEY" \
3  -H "Content-Type: application/json" \
4  -d '{
5    "model": "nano-banana-2",
6    "input": {
7        "image_input": [
8            "https://example.com/image.jpg"
9        ],
10        "prompt": "A futuristic cityscape at sunset with neon signs",
11        "aspect_ratio": "auto",
12        "resolution": "1K"
13    }
14}'

Schema

View Full API Docs

Input

model

string

required

Model ID for this capability.

Value: nano-banana-2

image_input

string[]

required

Reference image(s). Formats: jpeg, png, webp. Max 30MB each. Up to 14 images.

prompt

string

required

Describe the desired transformation (max 20,000 chars)

aspect_ratio

string

Aspect Ratio

Options: auto, 1:1, 3:2, 2:3, 16:9, 9:16

Default: auto

resolution

string

Resolution

Options: 1K, 2K, 4K

Default: 1K

google_search

boolean

Enable real-time web grounding for the prompt

Default: false

output_format

string

Output Format

Options: jpg, png

Default: jpg

webhookUrl

string

URL to receive a webhook notification when the task completes.

metadata

object

Custom key-value metadata to attach to the task for tracking.

Response (HTTP 202)

success

boolean

Whether the request was accepted successfully.

data.id

string

Unique task ID. Use this to poll GET /api/v1/tasks/{id} for results.

data.status

string

Task status: pending, processing, completed, failed.

data.type

string

Generation type: image-to-image.

data.provider

string

Provider name: gemini.

data.model

string

Model ID used for generation.

data.created_at

string

ISO 8601 timestamp of when the task was created.

data.estimated_seconds

number

Estimated time in seconds until the task completes.

Nano Banana 2 Image to Image API

Input Image*

Reference image(s). Formats: jpeg, png, webp. Max 30MB each. Up to 14 images.

Drag and drop an image, or click to browse

Supports JPEG, PNG, WEBP. Max 30MB. You can also paste from clipboard (Ctrl+V).

Prompt*

Describe the desired transformation (max 20,000 chars)

Aspect Ratio

Resolution

$0.08/image

Add Funds

Result

Idle

Results will appear here

Cost: $0.08/image

Nano Banana 2 API Implementation Guide

Create Account

Get API Key

Generate your API key from the dashboard and set it as an environment variable.

export MODELHUNTER_KEY="your_api_key"

Go to Dashboard →

Make Your First Call

Follow the API documentation for complete code examples in cURL, JavaScript, and Python, including request format, polling, and error handling.

View API Documentation →

$0.08/image

$0.12/image

$0.16/image

1curl -X POST https://api.modelhunter.ai/api/v1/gemini/image-to-image \

2 -H "Authorization: Bearer YOUR_API_KEY" \

3 -H "Content-Type: application/json" \

4 -d '{

5 "model": "nano-banana-2",

6 "input": {

7 "image_input": [

8 "https://example.com/image.jpg"

9 ],

10 "prompt": "A futuristic cityscape at sunset with neon signs",

11 "aspect_ratio": "auto",

12 "resolution": "1K"

13 }

14}'