Gemini 3.0 Pro Image (Nano Banana Pro)

Approved Data Classifications

Description

Gemini 3 Pro Image (preview) is Google's best model for complex, multi-turn image generation and editing, with improved accuracy and image quality. The model is also referred to as Gemini 3 Pro (with Nano Banana), and Google calls it Nano Banana Pro.

Capabilities

Model	Training Data	Input	Output	Context Length	Cost (per 1 million tokens / per image)
gemini-3-pro-image-preview	January 2025	Text, Image	Text, Image	65,536 (in) / 32,768 (out)	$2.00/1M input (text/image) $12.00/1M text output $120.00/1M image output

info

• 1M represents 1 Million Tokens
• Image outputs are priced at $120 per 1M image tokens (about $0.134 per 1K or 2K image, and $0.24 per 4K image)

Availability

Cloud Provider

Usage

curl

curl -X POST https://api.ai.it.ufl.edu/v1/images/generations \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <API_TOKEN>" \
-d '{
  "model": "gemini-3-pro-image-preview",
  "prompt": "A photoreal campus scene at golden hour with legible signage.",
  "size": "1024x1024"
}'

python

from openai import OpenAI

client = OpenAI(
    api_key="your_api_key",
    base_url="https://api.ai.it.ufl.edu/v1"
)

response = client.images.generate(
    model="gemini-3-pro-image-preview",
    prompt="A photoreal campus scene at golden hour with legible signage.",
    size="1024x1024",
    response_format="url"
)

image_url = response.data[0].url

javascript

import OpenAI from 'openai';

const openai = new OpenAI({
  apiKey: 'your_api_key',
  baseURL: 'https://api.ai.it.ufl.edu/v1'
});

const completion = await openai.images.generate({
    model: "gemini-3-pro-image-preview",
    prompt: "A photoreal campus scene at golden hour with legible signage.",
    size: "1024x1024",
    response_format: "url",
});

image_url = completion.data[0].url;

When to Use

• Complex, multi-turn image generation and editing
• Highest fidelity visuals with legible text
• Large-format output (up to 4K)
• Premium creative assets where quality matters

---

References

1. Gemini 3 Pro Image (Vertex AI)
   https://docs.cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/3-pro-image
2. Gemini API Pricing
   https://ai.google.dev/gemini-api/docs/pricing
3. Nano Banana Pro announcement (Google Cloud Blog)
   https://cloud.google.com/blog/products/ai-machine-learning/now-available-nano-banana-pro-for-enterprise