APIMaster.ai

Nano Banana 2 API

Google Gemini 3.1 Flash Image Preview — fast text-to-image and image-to-image with native 4K output and up to 14 reference images.

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Access Nano Banana 2 through APIMaster's OpenAI-compatible images endpoint. Generate text-to-image or image-to-image with extreme aspect ratios, optional Google search grounding, and resolution tiers from 0.5K to 4K — billed per image, pay-as-you-go.

Entrée
Images de référence (multiples)
JPEG / PNG / WebP (max 10 Mo) · Up to 14 reference images
Sortie
Votre résultat apparaîtra ici.

What is the Nano Banana 2 API?

Nano Banana 2 is powered by Google's gemini-3.1-flash-image-preview model. It delivers fast multimodal image generation with strong prompt following, up to 14 reference images for editing workflows, and native 4K output. Use the sync endpoint for one-shot results or async submit + poll for batch pipelines.

Choisir un modèle
03
gemini-3.1-flash-image-preview

Canal 03

Par image$0.0375/ img$0.0672/ imgÉconomisez 44%

Historique des empreintes

Aucune donnée de détection

Disponibilité

Aucune donnée de détection

Transparent per-image pricing by resolution — pay only for the images you generate.

Nano Banana 2 API — Pricing

ModelOur priceOfficialSave
Nano Banana 2$0.0375/img$0.0672/img44%

Capabilities

Native 4K output

Generate up to 4K resolution images with sharp detail — resolution billed in 0.5K / 1K / 2K / 4K tiers.

Text & image-to-image

Up to 14 reference images for editing, style transfer, and multi-image fusion workflows.

Extreme aspect ratios

Supports auto sizing plus ratios from 1:1 through 21:9 and extreme 1:4 / 4:1 — ideal for banners and social formats.

Use cases

E-commerce product shotsUI mockups & app screensMarketing visualsImage editing pipelines4K creative assets

Quick start

curl https://apimaster.ai/v1/images/generations \
  -H "Authorization: Bearer $APIMASTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3.1-flash-image-preview",
    "prompt": "An orange cat at sunset, watercolor"
  }'

Nano Banana 2 API — Foire aux questions

Which model id do I use?

Always gemini-3.1-flash-image-preview in the model field. Nano Banana 2 is the product name on APIMaster.

Which endpoint do I call?

POST /v1/images/generations (sync) or /v1/images/generations/async — not /chat/completions. See Quick start below.

How is billing calculated?

Per image, multiplied by resolution tier (0.5K/1K base, 2K ≈ 4/3×, 4K ≈ 2×). See the price table and usage logs for exact charges.

Can I use reference images?

Yes — up to 14 reference images via image_urls or multipart upload in the playground. JPEG, PNG, WebP, max 10MB each.

Is my data safe?

Yes. Your API data is not stored or used for training, and all requests are sent over encrypted connections.

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Comment commencer

01

Créez votre API Key

Inscrivez-vous et créez une API key compatible OpenAI en 3 secondes. Aucune carte de crédit nécessaire.

Créer une API Key
02

Rechargez votre solde

Ajoutez des crédits via USDT ou Epay. Un seul solde fonctionne pour tous les modèles et fournisseurs.

Recharger maintenant
03

Branchez dans votre code ou votre agent

Remplacez par votre APIMaster key et votre base URL — fonctionne avec tout outil compatible OpenAI : Claude Code, Cursor, LangChain, LiteLLM, etc.

Voir la documentation