Gemini 2.5 Flash Image (Nano Banana)

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 2.5 Flash Image is optimized for image understanding and generation with a balance of price and performance. It uses the speed and cost-effectiveness of Gemini 2.5 Flash to enable fast image generation and editing, and is also known as Nano Banana.

Capabilities

Model	Release Date	Input	Output	Context Length	Cost (per 1 million tokens / per image)
gemini-2.5-flash-image	Aug 26 2025	Text, Image	Text, Image	32,768	$0.30/1M input (text/image) $2.50 per image (1024x1024)

info

• 1M represents 1 Million Tokens
• Image outputs up to 1024x1024 use 1290 output tokens (about $0.039 per 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-2.5-flash-image",
  "prompt": "A cheerful alligator mascot in UF colors, poster style.",
  "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-2.5-flash-image",
    prompt="A cheerful alligator mascot in UF colors, poster style.",
    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-2.5-flash-image",
    prompt: "A cheerful alligator mascot in UF colors, poster style.",
    size: "1024x1024",
    response_format: "url",
});

image_url = completion.data[0].url;

When to Use

• Fast, cost-efficient image generation at scale
• Iterative image edits and quick concepting
• Multimodal workflows that mix text and images
• High-volume creative production

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References

1. Gemini 2.5 Flash Image (Vertex AI)
   https://cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/2-5-flash-image
2. Gemini API Pricing
   https://ai.google.dev/gemini-api/docs/pricing
3. Nano Banana announcement (Google Cloud Blog)
   https://cloud.google.com/blog/products/ai-machine-learning/nano-banana-2-and-nano-banana-pro-are-generally-available