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.
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.
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.
Channel 03
지문 검증 기록
검증 데이터가 없습니다
가동 상태
검증 데이터가 없습니다
Transparent per-image pricing by resolution — pay only for the images you generate.
Nano Banana 2 API — Pricing
| Model | Our price | Official | Save |
|---|---|---|---|
| Nano Banana 2 | $0.0375/img | $0.0672/img | 44% |
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
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 — 자주 묻는 질문
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.
Other models
시작하는 방법
코드 또는 에이전트에 연결하세요
APIMaster key와 base URL을 교체하세요 — 모든 OpenAI 호환 도구(Claude Code, Cursor, LangChain, LiteLLM 등)와 함께 작동합니다.
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