google / text-to-image API-only released 2026-02-26

Nano Banana 2 (Gemini 3.1 Flash Image Preview)

Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...

Input / 1M
$0.50
Output / 1M
$3.00
Context
65.5K
AA Intelligence
—
Closed weights — available only as a hosted API image + text → image + text View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24
$0.50
input / 1M
$3.00
output / 1M
—
cached input / 1M
$3.50
1M in + 1M out
Context window
65,536 tokens
Max output
58,982 tokens
Providers
1
Cheapest provider
Google AI Studio · $0.50 / $3.00
Best throughput
—
AA Intelligence / Coding / Agentic
— / — / —
✗ Tool calling ✓ Reasoning ✓ Structured outputs ✓ Image input ✗ File input ✗ Audio input ✗ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)
Current: $0.50 input · $3.00 output per 1M tokens

Benchmarks

Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.

AA Intelligence Index
—
AA Coding Index
—
AA Agentic Index
—
Design Arena
CategoryEloWin %Rank
graphicdesign 1261 66.3% #4
image 1274 65.1% #4
logo 1263 62.9% #4

Providers

1 provider · per 1M tokens · last 30 min metrics
ProviderQuantContextInputOutputUptimeTok/s
Google AI Studio unknown 65.5K $0.50 $3.00 97% —
Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation
google
Released on OpenRouter
2026-02-26
Context window
65,536 tokens
Max output
58,982 tokens
Input
image, text
Output
image, text
Tokenizer
Gemini
Moderated by provider
No
OpenRouter id
google/gemini-3.1-flash-image-preview
Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.