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Gemini 3 Pro Image Preview API pricing

Model IDgemini-3-pro-image-preview
Image generation
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Call summary

Per image
$0.50/ image
Output
Image
API Endpoints
1

Gemini 3 Pro Image Preview API endpoints

One API key — this model is served on the endpoint below.

POST/v1/images/generationsImage generation · Image models only
Image generation reference

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More Gemini models on Router One

20 other Gemini models on the same gateway and API key — each page lists endpoints and posted price.

Gemini 3.1 Flash Image Preview$0.50 per imageGemini Nano Banana 2.1$0.10 per imageGemini 3.1 Flash Lite$0.25 in / $1.50 out per 1M1.05M contextGemini 3.1 Flash Lite Preview$0.25 in / $1.50 out per 1M1.05M contextGemini 3.5 Flash$0.45 in / $2.70 out per 1M1.05M contextGemini 3.5 Flash Lite$0.30 in / $2.50 out per 1M1.05M contextGemini 3.6 Flash$0.45 in / $2.70 out per 1M1.05M contextGemini 3.7 Flash$0.225 in / $1.125 out per 1M1.05M contextGemini 3.8 Flash$0.225 in / $1.125 out per 1M1.05M contextGemini 3 Flash$0.1125 in / $0.675 out per 1M1.05M contextGemini 3 Flash Preview$1.20 in / $8.00 out per 1M1.05M contextGemini 4 Argon$0.84 in / $4.20 out per 1M1.05M context
8 channel versions
Gemini 3.5 Flash · AI Studio$1.125 in / $6.75 out per 1M1.05M contextGemini 3.5 Flash Lite · AI Studio$0.225 in / $1.875 out per 1M1.05M contextGemini 3.6 Flash · AI Studio$1.125 in / $6.75 out per 1M1.05M contextGemini 3.7 Flash · AI Studio$0.5625 in / $2.8125 out per 1M1.05M contextGemini 3.8 Flash · AI Studio$0.5625 in / $2.8125 out per 1M1.05M contextGemini 4 Argon · AI Studio$1.50 in / $7.50 out per 1M1.05M contextGemini 3.8 Flash · Vertex$0.5625 in / $2.8125 out per 1M1.05M contextGemini 4 Argon · Vertex$1.50 in / $7.50 out per 1M1.05M context

Gemini 3 Pro Image Preview at a glance

Gemini 3 Pro Image Preview (model ID gemini-3-pro-image-preview) is a Gemini-series image model on Router One, billed per generated image at $0.50. No Router One subscription plan includes Gemini 3 Pro Image Preview today; every call bills the wallet at its posted rate. Accepts text, image; returns image. Endpoint: POST /v1/images/generations (Image generation). Gemini 3 Pro Image Preview also accepts a reference image for edits on POST /v1/images/edits. Token rates and context window do not apply.

The Pro tier of Google's image line, known in the community as “Nano Banana Pro”; gemini-3.1-flash-image-preview is the Flash tier.

Gemini 3 Pro Image Preview FAQ

How much does Gemini 3 Pro Image Preview cost on Router One?

Gemini 3 Pro Image Preview is billed per generated image on Router One: $0.50, pay as you go.

Is Gemini 3 Pro Image Preview included in Router One subscriptions?

No Router One subscription plan includes Gemini 3 Pro Image Preview today; every call bills the wallet at its posted rate.

Which endpoints serve Gemini 3 Pro Image Preview?

Gemini 3 Pro Image Preview is served on POST /v1/images/generations (Image generation). Any Router One API key works there. Gemini 3 Pro Image Preview also accepts a reference image for edits on POST /v1/images/edits.

Start using Gemini 3 Pro Image Preview

Create an API key and call Gemini 3 Pro Image Preview at $0.50 per image on Router One — pay as you go, with per-request cost and latency visibility.

Get API KeyPlans & pay-as-you-go pricingCompare models side by sideQuickstart guideImage generation API guide