gemini-3.1-flash-image

Overview

Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible.

• Model type: Text generation
• Input: Text / Image
• Output: Text / Image
• Endpoints: chat

Code example

Call with gemini-3.1-flash-image_t :

curl https://www.starunion.net/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3.1-flash-image_t",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'