Nano Banana 2 (Gemini 3.1 Flash Image)

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gemini-3.1-flash-image

Google|Created Jun 18, 2026|131.1k context

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Gemini 3.1 Flash Image, 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 advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible.

Overview Specifications Activity Performance Uptime Examples API Reference

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Pricing-50%

Pay-as-you-go rates for this model. More details can be found here.

Input Tokens (1M)

$0.25

Output Tokens (1M)

$1.50

Capabilities

Input Modalities

TextImageAudioFile

Supported Parameters

Available parameters for API requests

Max Completion TokensReasoning EffortResponse FormatStopTemperatureTool ChoiceToolsTop PWeb Search OptionsImage Config

Nano Banana 2 (Gemini 3.1 Flash Image)

Input Tokens (1M)

Output Tokens (1M)

Input Modalities

Nano Banana 2 (Gemini 3.1 Flash Image)

Input Tokens (1M)

Output Tokens (1M)

Input Modalities

Output Modalities