// google

Nano Banana Pro (Gemini 3 Pro Image)

google/gemini-3-pro-image

reasoningtool callingimage inputprompt caching
OpenRouter + LiveBenchAll modelsFull leaderboard

Nano Banana Pro (Gemini 3 Pro Image) costs $2.00 per 1M input tokens and $12.00 per 1M output tokens with a 131K-token context window.

A reasoning, tool-calling model from google, released Jun 18, 2026. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.

Input / 1M
$2.00
Output / 1M
$12.00
Context
131K
LiveBench overall
Not evaluated

Specs and pricing

Input price

USD per 1M prompt tokens

$2.00
Output price

USD per 1M completion tokens, reasoning included

$12.00
Blended price

3:1 input:output — #41 most expensive of 343 listed models

$4.50
Cached input read

Blank means not priced separately — not free

$0.200
Cache write$0.375
Context window131,072 tokens
Max output32,768 tokens
Input modalitiesimage, text
Tool callingYes
Extended reasoningYes
Knowledge cutoff
ListedJun 18, 2026
All Google API pricing

What Nano Banana Pro (Gemini 3 Pro Image) costs to run

Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.

WorkloadPer month
Support chatbot

1.2K in / 400 out × 200K requests

$1,310/mo
RAG assistant

8K in / 600 out × 100K requests

$1,600/mo
Coding agent

40K in / 4K out × 20K requests

$1,552/mo
Document extraction

20K in / 1.5K out × 50K requests

$2,810/mo
Bulk classification

500 in / 20 out × 5M requests

$5,300/mo
Price your own workload

Compare Nano Banana Pro (Gemini 3 Pro Image) with

Benchmarked models at a similar price.

Nano Banana Pro (Gemini 3 Pro Image) FAQ

How much does Nano Banana Pro (Gemini 3 Pro Image) cost?

Nano Banana Pro (Gemini 3 Pro Image) lists at $2.00 per 1M input tokens and $12.00 per 1M output tokens, with cached input reads at $0.200 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $1,600 at list price.

What is the context window of Nano Banana Pro (Gemini 3 Pro Image)?

Nano Banana Pro (Gemini 3 Pro Image) accepts up to 131,072 tokens of context and can return up to 32,768 output tokens per response.

Does Nano Banana Pro (Gemini 3 Pro Image) support tool calling?

Yes — Nano Banana Pro (Gemini 3 Pro Image) supports tool (function) calling and exposes extended reasoning. It accepts image, text input.

How does Nano Banana Pro (Gemini 3 Pro Image) score on benchmarks?

LiveBench has not published a run for Nano Banana Pro (Gemini 3 Pro Image) yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.

What is the API model ID for Nano Banana Pro (Gemini 3 Pro Image)?

On OpenRouter the model ID is "google/gemini-3-pro-image". It was listed on Jun 18, 2026.

More from google

How these numbers are produced

  • Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores and ranksLiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.