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Gemini 3.1 Flash Image (Nano Banana 2)

Google
Model overview

gemini-3.1-flash-image

The canonical Gemini API identity for Nano Banana 2, aimed at fast image generation and editing.

image generationmultimodalvision-languagecreative generationenterprise access
CompareCompanyRankingsPublic signals
Representative version

gemini-3.1-flash-image

CompanyGoogle
Release2026-05-28
Release typeModel release
ParametersNot disclosed
ArchitectureNot disclosed
Context131,072
Input modalitiestext / image
Output modalitiestext / image
Tool use / function callingNot disclosed
Structured output / reasoningNot disclosed
Vision / audio / videoConfirmed: Vision
Open weights / LicenseNo open weights / license not applicable
google-nano-banana-2-preview-current · License not applicable
Vendor APIAvailable
Gemini 3.1 Flash Image | Gemini APIgoogle-nano-banana-2-preview-current · 2026-05-28
OpenRouterOpenRouter listed
PricingOpenRouter · 2026-07-15: $0.5 / $3
input / output, per 1M tokens
BenchmarkLMArena 1 row
Public signalsNo reliable public source
Use casesimage generation / Image editing / Creative iteration / creative generation
Claim evidenceRelease / model specs / weightsGemini 3.1 Flash Image | Gemini APIgemini-3.1-flash-image · 2026-05-28
OpenRouter

Pricing / context / availability

OpenRouterOpenRouter listed
OpenRouter listinggoogle/gemini-3.1-flash-image-preview
Mapped versiongemini-3.1-flash-image
google-nano-banana-2-preview-current
PricingOpenRouter · 2026-07-15: $0.5 / $3
input / output, per 1M tokens
Context131072
Speed/LatencyNo reliable public source
Snapshot time2026-07-15T20:11:41.551Z
SourceView source
Benchmark

Ranking evidence

SourceTaskRankScoreSampleTimeLink
LMArenaLMArena Text-to-Image leaderboard score21,271Not applicable2026-05-26T07:37:39.286ZView source
Evidence gaps

Public display boundary

Parameter scale not disclosedNo public model-card activity countersNo linkable real reviewSpeed/latency not disclosed