How much does the Nano Banana Pro API cost?

On Wizzx the Nano Banana Pro API starts at $0.108/image (108 credits). Each tier above lists its parameters and billing unit, and failed tasks are refunded.

What is the Nano Banana Pro API model ID?

nano-banana-pro. Submit tasks to POST /api/v1/task/submit/nano-banana-pro with your API key.

Am I charged if a task fails?

No. Credits are reserved when you submit a task and refunded if it fails. You are only charged for successful tasks.

Is this the official Nano Banana Pro API?

No. Nano Banana Pro models are developed by Google. Wizzx is an independent API platform that gives you access to them with one API key, an asynchronous task API and pay-as-you-go credits.

Does the submit response contain the generated file?

Generation is asynchronous. The submit response identifies the task. Query its status until it finishes, then use the output URLs in the result. See the API reference for response fields and error handling.

Google

Available via APIImage Generation

Nano Banana Pro API

Name: Nano Banana Pro API
Author: Google

Gemini 3 Pro Image for text-heavy layouts, multi-reference edits, and 1K, 2K, or 4K delivery from one prompt.

Model ID: nano-banana-pro
Starts at: $0.108/image
Free trial: $0.20 in credits

View API Documentation

New accounts start with $0.20 in free credits, about 1 image at the starting price.

Compare all Nano Banana API versions

Nano Banana Pro is developed by Google. Wizzx provides API access to it and does not own the model. All trademarks belong to their respective owners.

Next: turn the image into a video with

Model Guide

About Nano Banana Pro

Gemini 3 Pro Image for text-heavy layouts, multi-reference edits, and 1K, 2K, or 4K delivery from one prompt.

Why choose Nano Banana Pro?

Nano Banana Pro is Google's name for Gemini 3 Pro Image, the professional tier of the Gemini image family. Google documents it as a thinking model: it reasons through complex prompts before rendering, and that step is always on in the API. The payoff shows up in legible, stylized text for infographics, menus, and diagrams, in compositions that blend several references, and in scenes that draw on Gemini's real-world knowledge.

Choose it over Nano Banana 2 when the image carries information that has to be right, such as headlines, labels, product details, or a layout with a clear hierarchy, rather than when you mainly need fast variations.

Wizzx control	Current behavior
Prompt	Required; the backend accepts up to 10,000 bytes
Reference images	Optional, up to 8 image URLs; adding any switches to image-to-image editing
Aspect ratio	1:1 (default), 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, or auto
Resolution	1K, 2K (default), or 4K; the only setting that changes the price
Output format	PNG (default) or JPG

Best-fit workflows

Posters, menus, and infographics where the text must be spelled correctly and sit inside a deliberate layout.
Product and packaging mockups that combine a product shot, a logo, and a style reference without losing the product's details.
Localized campaign assets: keep the visual and swap the copy for another market, then check the result, since Google notes the model can still slip on grammar or idioms.
Print and large-format output: 4K is roughly 4096 px on the long side at 1:1 and above 5,000 px at 16:9 or 21:9 in Google's resolution table.

Prompting approach

Write the brief the way you would for a designer: the deliverable and its use, the subject, the information hierarchy, the exact copy in quotation marks, the font style, the palette, and the lighting or camera angle. Give each reference image one job, for example "image 1 is the product, image 2 is the color palette", and for edits state what must stay unchanged before describing the change. Start at 1K or 2K to settle the layout, then rerun at 4K for the final file.

Wizzx scope

Upstream, Google supports up to 6 high-fidelity object images and up to 5 character images in one request, Google Search grounding for real-time facts, and 10 fixed aspect ratios at 1K, 2K, and 4K. Wizzx exposes a subset: up to 8 reference images, the same 10 ratios plus auto, the three resolution tiers, and PNG or JPG output. Search grounding is not exposed. Google states that images from the model carry an invisible SynthID watermark. Live prices for each resolution are shown in the pricing section on this page.

Sources

Backend pricing

Nano Banana Pro API pricing

Model identity, billing unit and every price tier below are read from the backend catalog.

1K

108

credits / image

= $0.108 USD / image

100 images ≈ $10.80 · 1,000 images ≈ $108.00

Official: ~~$0.15~~−28%

resolution: 1K

2K

108

credits / image

= $0.108 USD / image

100 images ≈ $10.80 · 1,000 images ≈ $108.00

Official: ~~$0.15~~−28%

resolution: 2K

4K

144

credits / image

= $0.144 USD / image

100 images ≈ $14.40 · 1,000 images ≈ $144.00

Official: ~~$0.30~~−52%

resolution: 4K

Nano Banana Pro API vs official pricing

Tier	Official from	Wizzx	Savings
1K	$0.15	$0.108	−28%
2K	$0.15	$0.108	−28%
4K	$0.30	$0.144	−52%

1 credit = $0.001 USD. The final deduction returned by the API is authoritative.

Back to all models

Integrate the Nano Banana Pro API

Every request is asynchronous: submit the task, keep the task ID, then poll for the result. The body below uses the model's default settings.

1
Get a Nano Banana Pro API key
Sign in and create a key in the dashboard. Set WIZZX_API_KEY in your server environment; never expose it in browser code.
2
Submit a task
Send a POST request to the model endpoint. A successful submission returns data.task_id; keep that ID before polling. Submission is not generation completion.
3
Retrieve the result
Replace YOUR_TASK_ID with the returned ID and query /api/v1/task/status. Wait for SUCCEEDED and read the output URLs. Stop on FAILED or REVIEW_REQUIRED; do not automatically resubmit an uncertain task.

Submit a tasksubmit.sh

curl -X POST \
  https://api.wizzx.ai/api/v1/task/submit/nano-banana-pro \
  -H "Authorization: Bearer $WIZZX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "aspect_ratio": "1:1",
  "resolution": "2K",
  "output_format": "png",
  "prompt": "A beautiful sunset over the ocean"
}'

Submit a tasksubmit.ts

const response = await fetch("https://api.wizzx.ai/api/v1/task/submit/nano-banana-pro", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.WIZZX_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "aspect_ratio": "1:1",
    "resolution": "2K",
    "output_format": "png",
    "prompt": "A beautiful sunset over the ocean"
  }),
});

const payload = await response.json();
const task = payload.data ?? payload;
const taskId = task.task_id;

Submit a tasksubmit.py

import os
import requests

response = requests.post(
    "https://api.wizzx.ai/api/v1/task/submit/nano-banana-pro",
    headers={
        "Authorization": f"Bearer {os.environ['WIZZX_API_KEY']}",
    },
    json={
        "aspect_ratio": "1:1",
        "resolution": "2K",
        "output_format": "png",
        "prompt": "A beautiful sunset over the ocean"
    },
)
payload = response.json()
task = payload.get("data", payload)
task_id = task["task_id"]

Retrieve the resultstatus.sh

curl -X POST \
  https://api.wizzx.ai/api/v1/task/status \
  -H "Authorization: Bearer $WIZZX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "task_id": "YOUR_TASK_ID"
}'

Retrieve the resultstatus.ts

const response = await fetch("https://api.wizzx.ai/api/v1/task/status", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.WIZZX_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ task_id: "YOUR_TASK_ID" }),
});

const payload = await response.json();
const task = payload.data ?? payload;

Retrieve the resultstatus.py

import os
import requests

response = requests.post(
    "https://api.wizzx.ai/api/v1/task/status",
    headers={
        "Authorization": f"Bearer {os.environ['WIZZX_API_KEY']}",
    },
    json={"task_id": "YOUR_TASK_ID"},
)
payload = response.json()
task = payload.get("data", payload)

API documentation Compare models

Nano Banana Pro API parameters

The fields this endpoint accepts on Wizzx, read from the same schema as the Playground form.

Parameter	Type	Default	Allowed values	Description
`prompt` Promptrequired	string	—	—
`image_urls` Reference Images	url[] ≤ 8	—	—	Optional. Add up to 8 images to guide image-to-image generation.
`aspect_ratio` Aspect Ratio	string	1:1	1:1 · 2:3 · 3:2 · 3:4 · 4:3 · 4:5 · 5:4 · 9:16 · 16:9 · 21:9 · auto	Choose the output canvas. This does not change the price.
`resolution` Resolution	string	2K	1K · 2K · 4K	Resolution is the only setting that changes the price.
`output_format` Output Format	string	png	png · jpg	—

API integration questions

How much does the Nano Banana Pro API cost?: On Wizzx the Nano Banana Pro API starts at $0.108/image (108 credits). Each tier above lists its parameters and billing unit, and failed tasks are refunded.
What is the Nano Banana Pro API model ID?: nano-banana-pro. Submit tasks to POST /api/v1/task/submit/nano-banana-pro with your API key.
Am I charged if a task fails?: No. Credits are reserved when you submit a task and refunded if it fails. You are only charged for successful tasks.
Can I try the Nano Banana Pro API for free?: Yes. New accounts start with $0.20 in free credits, about 1 image at the starting price.
Is this the official Nano Banana Pro API?: No. Nano Banana Pro models are developed by Google. Wizzx is an independent API platform that gives you access to them with one API key, an asynchronous task API and pay-as-you-go credits.
Does the submit response contain the generated file?: Generation is asynchronous. The submit response identifies the task. Query its status until it finishes, then use the output URLs in the result. See the API reference for response fields and error handling.

Wizzx API

Start building with the Nano Banana Pro API

New accounts get $0.20 in free credits. Pay as you go with no subscription, and failed tasks are refunded.

Try in Playground

Nano Banana Pro API

About Nano Banana Pro

Why choose Nano Banana Pro?

Best-fit workflows

Prompting approach

Wizzx scope

Sources

Nano Banana Pro API pricing

1K

2K

4K

Nano Banana Pro API vs official pricing

Integrate the Nano Banana Pro API

Get a Nano Banana Pro API key

Submit a task

Retrieve the result

Nano Banana Pro API parameters

API integration questions

Nano Banana

Nano Banana 2

Nano Banana 2 Lite

Seedream 4.0

Start building with the Nano Banana Pro API

Nano Banana Pro API

About Nano Banana Pro

Why choose Nano Banana Pro?

Best-fit workflows

Prompting approach

Wizzx scope

Sources

Nano Banana Pro API pricing

1K

2K

4K

Nano Banana Pro API vs official pricing

Integrate the Nano Banana Pro API

Get a Nano Banana Pro API key

Submit a task

Retrieve the result

Nano Banana Pro API parameters

API integration questions

Compare related models

Nano Banana

Nano Banana 2

Nano Banana 2 Lite

Seedream 4.0

Start building with the Nano Banana Pro API