Fresh paint, wet floors — we're rebuilding CostOfToken into a cross-provider price comparison. Some corners are still under construction; the full version is coming up soon.

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

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. Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) from OpenRouter costs $0.250 per 1M input tokens and $1.50 per 1M output tokens. Context window 65,536 tokens.

API id google/gemini-3.1-flash-lite-image · OpenRouter · source · updated 2026-09-25

We have not confirmed what kind of model this is. Its name suggests one thing and its pricing another, and we would rather say so than guess.

$0.250
Input / 1M tokens
$1.50
Output / 1M tokens
—
Cached input / 1M
66K
Context window

Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) specifications

Provider
OpenRouter
API id
google/gemini-3.1-flash-lite-image
Model type
unknown
Context window
66K tokens
Max output
59K tokens
Currency
USD
Price source
Provider API
Last checked
2026-09-25

Tags

  • fast
  • vision

Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) 🍌 across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

ProviderInput /1MCached /1MOutput /1M1M in + 1M outvs vendor
GoogleVendorCheapest
$0.250—$1.50$1.75—
OpenRouterHostviewing
$0.250—$1.50$1.75—

What Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) costs in practice

Estimated cost at common usage volumes
WorkloadInput tokensOutput tokensEstimated cost
Short chat turn1,000500$0.0010
Document summary50,0002,000$0.02
1M tokens in, 200K out1,000,000200,000$0.55

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) cost per 1M tokens?
Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) costs $0.250 per 1M input tokens and $1.50 per 1M output tokens on the standard tier.
What is Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)'s context window?
Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) accepts up to 65,536 tokens in a single request, and can return up to 58,982 output tokens.
Is there a cheaper OpenRouter model than Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)?
Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.250 for Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image), with a 8,192 token context window.
Where does this Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) price come from?
From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Other OpenRouter models

See all OpenRouter pricing →