Nano Banana Pro (Gemini 3 Pro Image Preview) Model Specs, Costs & Benchmarks (March 2026)

Nano Banana Pro (Gemini 3 Pro Image Preview), developed by Google, features a context window of 65.5K tokens. The model costs $2.00 per million tokens for input and $12.00 per million tokens for output. It was released on November 20, 2025, and has achieved impressive scores in various benchmarks.

Access Nano Banana Pro (Gemini 3 Pro Image Preview) & 210+ other AI models all in one platformTry Galaxy.ai for free

Overview

	Nano Banana Pro (Gemini 3 Pro Image Preview)
Model Provider The organization behind this AI's development	Google
Input Context Window Maximum input tokens this model can process at once	65.5K tokens
Output Token Limit Maximum output tokens this model can generate at once	32.8K tokens
Release Date When this model first became publicly available	November 20, 2025 3 months ago November 20th, 2025

Pricing

	Nano Banana Pro (Gemini 3 Pro Image Preview)
Input Token Cost Cost per million input tokens	$2.00 per million tokens
Output Token Cost Cost per million output tokens	$12.00 per million tokens

Capabilities & Features

	Nano Banana Pro (Gemini 3 Pro Image Preview)
Input Types Supported input formats	imagetext
Output Types Supported output formats	imagetext
Tokenizer Text encoding system	Gemini
Key Features Advanced capabilities	✓ Structured Output✓ Reasoning Mode

Benchmarks

	Nano Banana Pro (Gemini 3 Pro Image Preview)
MMLU Measures knowledge across 57 subjects like law, math, history, and science	Not available
MMMU Measures understanding of combined text and images across various domains	Not available
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations	Not available