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Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) API pricing

Token prices on OpenRouter and at the provider’s list price, and what your own workload would cost per month.

Input
$0.25
Output
$1.50
Cached input
—

OpenRouter, per 1M tokens. A dash means no listed price.

Your monthly cost

Your workload

90M input and 18M output tokens a month (30-day month; token counts are per request).

Assumes: 1,000 conversations a day, each sending about 3,000 tokens of history and instructions and receiving about 600 tokens of replies.

Input not in cache
$22.50
Output
$27.00
Total per month
$49.50
Per day
$1.65
Per request
$0.0016
Unit
Currency

No cache-read price is published for this model, so a cached share is billed as normal input. Compare this bill with other models.

Every price, with its source

OpenRouter price, per 1M tokens

Input
$0.25
Output
$1.50
Cached input (read)
not listed
Context window
65,536 tokens
Maximum output
58,982 tokens
Accepts
image, text
Reasoning mode
yes
Listed since
30 Jun 2026

Provider list price, per 1M tokens

Input / output
$0.25 / $1.50
Batch (input / output)
$0.125 / $0.75

As recorded in the LiteLLM price table under gemini/gemini-3.1-flash-lite-image, which cites the provider’s pricing page. It matches the OpenRouter price.

Collected from the OpenRouter models API (466 entries). 99 models are cross-checked against provider list prices in the LiteLLM price table.

About Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation...

Description supplied by OpenRouter. Model id for the API: google/gemini-3.1-flash-lite-image

Other Google models

Questions and answers

How much does Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) cost per million tokens?

At the collection of 3 Oct 2026, 08:40 UTC, OpenRouter listed Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) at $0.25 per million input tokens and $1.50 per million output tokens. The provider list price recorded by LiteLLM is $0.25 for input and $1.50 for output.

What would Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) cost per month?

For 1,000 requests a day with 3,000 input and 600 output tokens each, over a 30-day month and with no caching, the bill is $49.50. Change the numbers in the simulator on this page to match your own traffic.

Does Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) have a cheaper price for cached input?

The sources list no cache-read price for this model, so this site applies no caching discount to it.

What is the context window of Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)?

65,536 tokens, with a maximum output of 58,982 tokens, as reported by OpenRouter.