Google: Nano Banana Pro (Gemini 3 Pro Image)

proprietary

Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro.

Context
131K
Max output
33K
Input price
$2/1M tokens
Output price
$12/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDgoogle/gemini-3-pro-image
Provider OpenRouter
Creator Google AI
Familygemini-3
Licenseproprietary
Statusactive
Typechat
Input modalitiesimage, text
Output modalitiesimage, text
Open weightNo
Parameters—
Architecture—
Context window131K tokens
Max input—
Max output33K tokens
Reasoning tokens—
Knowledge cutoff
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$2
Output
$12
Cache write
—
Cache read
$0.2
Batch in
—
Batch out
—

Family Comparison: gemini-3

ModelContextMax outPricing
Google: Gemini 3 Flash Preview (batch)1.0M66K$0.25$1.5
Google: Gemini 3 Flash Preview1.0M66K$0.5$3
Google: Nano Banana Pro (Gemini 3 Pro Image Preview)66K33K$2$12
Google: Nano Banana Pro (Gemini 3 Pro Image)131K33K$2$12
Google: Gemini 3 Pro Preview1.0M66K$2$12

API

GET/v1/models/openrouter/google/gemini-3-pro-image

Google: Nano Banana Pro (Gemini 3 Pro Image)

google/gemini-3-pro-image

Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro.

Changes · 3 entries
google/gemini-3-pro-imagecreateca7a400Nov 2, 2026, 03:02 AM
google/gemini-3-pro-imageupdatebf78dcfJul 25, 2026, 05:49 AM
context_window65536→131072
google/gemini-3-pro-imagecreateab879c8Jun 18, 2026, 08:32 AM