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Nano Banana 2

google·google/gemini-3.1-flash-image·GA·Closed·gemini-flash series·Image gen
Image model for prompt-driven generation, editing, and visual design workflows

Nano Banana 2 by google is offered by 12 providers on this page. Its official list price is $0.50 per 1M input tokens and $60.00 per 1M output tokens.

The context window is 65,536 tokens at the reference host, but hosts report different limits, from 32,768 to 1,048,576, so the usable window depends on the provider you pick. It supports reasoning and structured output. Accepted input modalities are Image, Text, PDF, and Video. Providers report the capability flags inconsistently, so verify a specific feature against the host you plan to use. Its training knowledge cuts off at 2025-01.

Specs & pricing

Input / output per 1M tokens
Official price·Google
$0.50 / $60.00
Blended $15.38 · Cache read —
Lowest paid·RequestyGateway
$0.50 / $2.00
Blended $0.88 · 1× spread
Context
65,536
Output limit
65,536
Knowledge cutoff
2025-01
Released / updated
2026-05-28 / 2026-05-28
Capabilities
✓ ReasoningTool use✓ Structured output✓ Temperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
ImageTextPDFVideo

Estimate image generation

Direct tariff calculation

Select one official tariff and enter the directly billed image count or image-token quantity. Size and quality are selected in the tariff.

Estimated cost
$0.045
Unit rate: $0.045/image
Google Vertex AI · 512
Official source ↗

Official image generation pricing4 tariffs

Google Vertex AI ↗GlobalChecked 2026-09-28
Billed mediaConditionsOfficial price
Output images
512
$0.045 / image
Output images
1K
$0.067 / image
Output images
2K
$0.10 / image
Output images
4K
$0.15 / image

Image prices use the vendor's published billing unit. Text or image input tokens may be billed separately where the tariff notes this.

Available at 12 providers12 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
RequestyGateway$0.50$2.00——131,072 ⚠32,768
Kilo GatewayGateway$0.50$3.00——131,072 ⚠32,768
AbacusGateway$0.50$3.00——1,048,576 ⚠32,768
OpenRouterGateway$0.50$3.00——131,072 ⚠32,768
Vercel AI GatewayCloud$0.50$3.00$0.05—131,072 ⚠32,768
AIHubMixGateway$0.50$3.00——131,072 ⚠32,768
Eden AIGateway$0.50$3.00——65,53632,768
Merge GatewayGateway$0.50$3.00——32,768 ⚠32,768
Eden AIGateway$0.50$3.00——131,072 ⚠32,768
GoogleOfficial
gemini-3.1-flash-image-preview
First-party$0.50$60.00——65,53665,536
GoogleOfficialFirst-party$0.50$60.00——131,072 ⚠32,768
VertexOfficialCloud$0.50$60.00$0.05—131,072 ⚠32,768

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = noneeffort = loweffort = mediumeffort = higheffort = maxeffort = minimalToggle (on / off)

Interleaved thinking (reasoning between tool calls) is declared by 1 of 12 providers.

2 / 12 providers expose no reasoning control (reasoning_options: []).

Your usage cost

1Vercel AI Gateway$196.00
2Requesty$200.00
3Kilo Gateway$250.00
4Abacus$250.00
5OpenRouter$250.00
6AIHubMix$250.00
10Vertex · Official$3,046.00
Switch to Vercel AI Gateway to save $2,850.00/mo (94%)

Price historyone sample accumulated per data sync

Input listOutput listMin blended
$60.00$02026-08-082026-08-282026-08-08 · Input list $0.502026-08-09 · Input list $0.502026-08-10 · Input list $0.502026-08-11 · Input list $0.502026-08-12 · Input list $0.502026-08-13 · Input list $0.502026-08-19 · Input list $0.502026-08-21 · Input list $0.502026-08-28 · Input list $0.502026-08-08 · Output list $3.002026-08-09 · Output list $3.002026-08-10 · Output list $3.002026-08-11 · Output list $3.002026-08-12 · Output list $3.002026-08-13 · Output list $60.002026-08-19 · Output list $60.002026-08-21 · Output list $60.002026-08-28 · Output list $60.002026-08-08 · Min blended $1.132026-08-09 · Min blended $1.132026-08-10 · Min blended $1.132026-08-11 · Min blended $1.132026-08-12 · Min blended $1.132026-08-13 · Min blended $1.132026-08-19 · Min blended $0.882026-08-21 · Min blended $0.792026-08-28 · Min blended $0.88

Artificial Analysis arenas2 arenas

Text to imageGemini 3.1 Flash Image1125±8#6 of 166
Image editingGemini 3.1 Flash Image1108±8#8 of 80

Elo from human preference matchups run by Artificial Analysis. Each arena is anchored separately, so Elo is only comparable within one arena, against the other models on that board, and the 95% confidence interval (shown as ±) indicates how much of a gap is noise. Rank is over the whole arena, including models not listed here.

Related models

Gemini 3.8 Flashsame series$0.75 / $3.75Gemini 3.8 Flash (EU)same series$0.83 / $4.13Gemini 3.8 Flash (Vertex AI, US)same series$0.75 / $3.75GLM-5.2cheaper alternative$1.40 / $4.40Kimi K3cheaper alternative$3.00 / $15.00GPT OSS 120Bcheaper alternative$2.92 / $2.92GLM-5.3cheaper alternative$1.40 / $4.40
Data partly from models.dev (MIT) · Google official docs ↗