Nano Banana Pro (Gemini 3 Pro Image)
Google's multimodal model for integrated image and text analysis.
GoogleImage ModelsClosed
Vision
Model page Updated 2026-06-18
About Nano Banana Pro (Gemini 3 Pro Image)
Designed around Google's Gemini architecture, the model prioritizes efficient processing of visual data alongside extended textual sequences. Its closed weights enable controlled deployment and consistent performance across diverse inputs. The focus remains on reliable multimodal fusion without public parameter access.
Strengths include maintaining context over long image-text pairs and delivering coherent outputs for complex visual queries. It suits enterprise environments where data privacy and integration matter most. Typical usage covers document review with diagrams, visual question answering, and automated content description tasks.
How Nano Banana Pro (Gemini 3 Pro Image) compares
Nano Banana Pro (Gemini 3 Pro Image) (striped bar) vs other image models on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · Nano Banana Pro (Gemini 3 Pro Image) ranks #6 of 8
$2.0
$2.5
$3.0
$3.0
$10.0
$12.0
$12.0
$15.0
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Cost calculator
Estimate what Nano Banana Pro (Gemini 3 Pro Image) would cost for your usage.
$0.00800
per request
$80
estimated / month
Based on Nano Banana Pro (Gemini 3 Pro Image)'s $2.00/1M input · $12.00/1M output. Estimate only — actual cost varies by provider and caching.
Quick start
OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. Only the model slug changes between models.
JavaScript · openai
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const completion = await client.chat.completions.create({
model: "google/gemini-3-pro-image",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: google/gemini-3-pro-image
Editor's verdict
Our take on Nano Banana Pro (Gemini 3 Pro Image)
Nano Banana Pro (Gemini 3 Pro Image) is Google's proprietary image models with a 66K-token context window.
At $12.00 per 1M output tokens, it is premium-priced for its class.
It is available through Google's API and aggregators like OpenRouter.
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