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Nano Banana API

Google's Nano Banana image line — fourteen aspect ratios, four tiers, half a cent upwards.

At a glance

From
$0.005 / generation
Modes
Text to image, Image to image
Resolutions
512px, 1K, 2K, 4K
Aspect ratios
1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 1:8, 4:1, 8:1

Models in this family

ModelFromModesOpen
Nano Banana 2 LiteFast 1K image generation and editing from text and reference images.$0.005/ generationText to image, Image to imageOpenDocs
Nano BananaCreate and edit images from a prompt and optional reference images.$0.012/ generationText to image, Image to imageOpenDocs
Nano Banana 2Generate and edit images from prompts and reference images at multiple resolutions.$0.018/ generationText to image, Image to imageOpenDocs
Nano Banana ProQuality-focused image generation and editing with reference-image support.$0.029/ generationText to image, Image to imageOpenDocs

Pricing

ModelOptionPrice
Nano Banana 2 LiteStandard$0.005/ generation
Nano BananaStandard$0.012/ generation
Nano Banana 21k$0.018/ generation
Nano Banana 22k$0.02/ generation
Nano Banana 2512px$0.022/ generation
Nano Banana 24k$0.026/ generation
Nano Banana Pro1k$0.029/ generation
Nano Banana Pro2k$0.029/ generation
Nano Banana Pro4k$0.043/ generation

Which one to pick

  • Nano Banana 2 Lite

    Volume work — thumbnails, variations, anything you generate hundreds of. The cheapest image model in the catalog at half a cent.

  • Nano Banana

    The original tier, at a flat price regardless of resolution.

  • Nano Banana 2

    The general-purpose choice, with resolution-tiered pricing so 1K work stays cheap and 4K costs more.

  • Nano Banana Pro

    Quality-first output where a flat rate up to 2K matters more than the lowest per-image price.

Strengths

  • Fourteen aspect ratios including extreme panoramic and column formats (21:9, 1:8, 8:1) that most image models do not offer.
  • Reference-image editing on every tier, including the cheapest.
  • An eight-fold price spread within one line and one request format.
  • Pro charges the same up to 2K, which makes higher-resolution output predictable to budget.

Limitations

  • Resolution pricing is not uniform across tiers — on Nano Banana 2, 512px is priced like 4K rather than like 1K.
  • No video output anywhere in the line; pair it with a video family if you need motion.
  • The tiers share a parameter surface, so there is no capability reason to pick one over another — only cost and output quality.

Frequently asked questions

How much does the Nano Banana API cost?

API Stock bills per use from one prepaid balance, with no subscription. Current prices: Nano Banana 2 Lite — from $0.005 per generation; Nano Banana — from $0.012 per generation; Nano Banana 2 — from $0.018 per generation; Nano Banana Pro — from $0.029 per generation.

Which Nano Banana model is the cheapest?

Nano Banana 2 Lite is the cheapest at $0.005 per generation. The most expensive tier, Nano Banana Pro, costs $0.029 per generation.

How do I get an API key for Nano Banana?

Create an account and API key on API Stock, then fund your balance. The same key works with Nano Banana and other catalog models.

The vendor's own description of this line: Google DeepMind — Gemini image models

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