Gemini 3.0 Pro Image (Nano Banana Pro)

Approved Data Classifications

This model is only approved for Open Data. When leveraging NaviGator AI’s suite offerings, please ensure you are selecting models that meet the compliance requirements in accordance with UF’s Data Classifications, grant awards or project specifications, and state and federal law.

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. It was announced on November 21, 2025. The model is also referred to as Gemini 3 Pro (with Nano Banana), and Google calls it Nano Banana Pro.

Capabilities

Model	Release Date	Input	Output	Context Length	Cost (per 1 million tokens / per image)
gemini-3-pro-image-preview	Nov 21 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