Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) Pricing & Specs
Released: 2026-02-26
OpenRouter Model ID
google/gemini-3.1-flash-image-previewGoogle: Nano Banana 2 (Gemini 3.1 Flash Image Preview) is an API-access large language model from Google priced at $0.50/1M input tokens and $3.00/1M output tokens with a 66k context window. Context caching reduces input costs to $0.25/1M for cache reads. Supported capabilities include reasoning.
Economics (OpenRouter)
Input / 1M
$0.50
Output / 1M
$3.00
Est. Monthly Cost
$43.65
Based on current usage settings
Cache Read$0.25
Cache Write$0.63
Capabilities (models.dev)
ReasoningSupported
Tool CallNo
Audio InNo
Audio OutNo
Modalitymultimodal
Context Window66k
Benchmarks (AA)
Intelligence Index
General reasoning and knowledge
—
Coding Index
Code generation & debugging
—
Math Index
Mathematical reasoning
—
Performance
—tokens/sec
* Median output throughput
Model ID: google/gemini-3.1-flash-image-preview • Data Sources: OpenRouter, Artificial Analysis, models.dev