google

Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)

google/gemini-3.1-flash-image-preview

For $1, you can send approximately:

~40.8messages

How do we get this number?

One message = ~7,000 input tokens + ~7,000 output tokens

Input cost per message7,000 x $0.50/M = $0.003500

Output cost per message7,000 x $3.00/M = $0.021000

Total cost per message$0.024500

Messages for $140.82

Context window

66k

tokens

Max response

66k

tokens

Input price

$0.50

per million tokens

Output price

$3.00

per million tokens

Modalities

Input:imageInput:textOutput:imageOutput:text

Description

Gemini 3.1 Flash Image Preview, 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...