Nano Banana Pro
nano-banana-proGoogle's state-of-the-art image generation and editing model (Gemini 3 Pro Image): sharp text rendering, 1K to 4K output.
- Price
- $0.18/image
- Aspect ratios
- 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
- Resolution
- 1K, 2K, 4K
- Input β output
- Text β Image
- Developer
- Google DeepMind
- Updated
- September 24, 2026
Playground
Try Nano Banana Pro
Input & output
This run
$0.18 Β· 18 credits
For accounts without a purchase: runs above 2 credits need a top-up.
New here?
10 free credits ($0.10) when you sign up with Google
Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.
Examples
Open full sizePrompt
How engineers see the San Francisco Bridge
Settings
- aspect_ratio
- 4:3
- resolution
- 2K
Open full sizePrompt
A modern minimalist Scandinavian living room with a large window overlooking snowy mountains, warm wood, cozy fireplace
Settings
- aspect_ratio
- 16:9
Open full sizePrompt
A business card for 'Marina Chen, Creative Director' at 'Prism Studio', clean modern layout, teal and gold geometric pattern
Settings
- aspect_ratio
- 16:9
About Nano Banana Pro
Nano Banana Pro is a model by Google DeepMind in the Image generation category. On Railwail, Nano Banana Pro costs $0.18 per image. Depending on the settings, the price ranges from $0.18/image to $0.36/image. Supported aspect ratios: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, and 21:9.
Pricing
| resolution: 1K | $0.18 per image |
|---|---|
| resolution: 2KDefault | $0.18 per image |
| resolution: 4K | $0.36 per image |
- 1 credit = $0.01
Cost calculator
Price calculator
Total
$18.00
1,800 credits
Per run
$0.18 Β· 18 credits
Fixed price per run, known before the run starts.
API
curl https://railwail.com/api/v1/images/generations \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "nano-banana-pro",
"prompt": "A lighthouse on a rocky coast at sunset, photorealistic"
}'import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["RAILWAIL_API_KEY"],
base_url="https://railwail.com/api/v1",
)
image = client.images.generate(
model="nano-banana-pro",
prompt="A lighthouse on a rocky coast at sunset, photorealistic",
)
print(image.data[0].url)import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.RAILWAIL_API_KEY,
baseURL: "https://railwail.com/api/v1",
});
const image = await client.images.generate({
model: "nano-banana-pro",
prompt: "A lighthouse on a rocky coast at sunset, photorealistic"
});
console.log(image.data[0].url);// npm install railwail
import railwail from "railwail";
const rw = railwail(process.env.RAILWAIL_API_KEY);
const res = await rw.image("nano-banana-pro", "A lighthouse on a rocky coast at sunset, photorealistic");
console.log(res.data[0].url);Specifications
- Model ID
nano-banana-pro- Developer
- Google DeepMind
- Category
- Image generation
- Input
- Text
- Output
- Image
- Aspect ratios
- 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
- Resolution
- 1K, 2K, 4K
- Billing
- Fixed price, known before the run
- Catalog entry updated
- September 24, 2026
Input parameters
Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.
promptrequiredType: TextDefault: βAllowed values: βresolutionType: ChoiceDefault:2KAllowed values: 1K, 2K, or 4KaspectRatioType: ChoiceDefault:1:1Allowed values: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, or 21:9
Tags
- replicate
- text-to-image
Use cases
Frequently asked questions
What is Nano Banana Pro?
Nano Banana Pro is a model by Google DeepMind in the Image generation category. On Railwail you can call it with an API key through the Railwail API.
How much does Nano Banana Pro cost on Railwail?
On Railwail, Nano Banana Pro costs $0.18 per image. Depending on the settings, the price ranges from $0.18/image to $0.36/image. The price is known before the run starts. Usage is paid from prepaid credits; 1 credit equals $0.01.
Which settings does Nano Banana Pro support?
According to its input schema, Nano Banana Pro knows these parameters: prompt, resolution (1K, 2K, or 4K), and aspectRatio (1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, or 21:9).
How fast is Nano Banana Pro?
There are not enough measured runs of Nano Banana Pro on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is Nano Banana Pro better than FLUX 1.1 Pro?
That depends on the task. Nano Banana Pro (Google DeepMind) and FLUX 1.1 Pro (Black Forest Labs) are both models in the Image generation category. The comparison page shows their prices and specifications side by side.
Compare Nano Banana Pro and FLUX 1.1 ProHow do I use Nano Banana Pro through the API?
Create a Railwail API key and send your request with the model ID nano-banana-pro. Code examples for curl, Python and JavaScript are in the API section of this page.
Comparable models
All in this category- FLUX 1.1 ProBlack Forest Labs
Black Forest Labs' flagship text-to-image model. Faster generation than FLUX.1 Pro at higher prompt adherence, with strong photorealism and reliable spatial composition. Runs as a hosted Replicate model.
- Flux 1.1 Pro UltraBlack Forest Labs
FLUX 1.1 Pro in ultra mode. Up to 4 megapixel images with raw mode for photorealism.
- Flux DevBlack Forest Labs
Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.
Use Nano Banana Pro via the API
One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = $0.01.