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nano-banana-pro-preview

Googleimage-generation

nano-banana-pro-preview is a Google image-generation model you can call through flatkey.ai's OpenAI-compatible API. On flatkey it runs at $1.3333 per 1M input tokens — about 33% below the $2 official list price, and $8 per 1M output tokens. One API key covers GPT, Claude, Gemini, DeepSeek, Seedance and 500+ other models, so you can switch models without changing SDKs or juggling separate accounts. Billing is prepaid with live usage analytics and a single invoice, which keeps spend predictable as you scale.

Get your API keySave ~33% vs official pricing
30-day success rate
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Throughput
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First-token latency
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Requests (30 days)
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Stacked discount
up to 50% offModels are priced at 60–90% of the official list. Top up $200 and get $100 free — both discounts stack, as low as 50% of the official price. →

Pricing

Input
List price $2
$1.3333/ 1M tokens
Output
List price $12
$8/ 1M tokens
Cache read
List price $0.2
$0.133333/ 1M tokens

Specifications

Provider
Google
Modality
Image generation
Access
OpenAI-compatible API
Endpoints
image-generation

How to use the nano-banana-pro-preview API

  1. 1
    Create a flatkey.ai account and API key
    Sign up for free, then generate an API key in the console. New accounts get bonus credit on their first top-up.
  2. 2
    Point your OpenAI client at flatkey
    Set base_url to https://router.flatkey.ai/v1 and use your flatkey key as the API key. No other code changes are needed — the API is OpenAI-compatible.
  3. 3
    Call nano-banana-pro-preview
    Send a request with model set to "nano-banana-pro-preview" using the OpenAI SDK or curl. Copy a ready-to-run example below.
API example
curl "https://router.flatkey.ai/v1/images/generations" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $FLATKEY_API_KEY" \
  -d '{"model":"nano-banana-pro-preview","prompt":"A cute cat","size":"1024x1024"}'

Availability (last 30 days)

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Frequently asked questions

How much does the nano-banana-pro-preview API cost?

On flatkey.ai, nano-banana-pro-preview costs $1.3333 per 1M input tokens and $8 per 1M output tokens, roughly 33% below the official list price. Top up $200 and get $100 free to stretch the budget further.

Is nano-banana-pro-preview OpenAI-compatible?

Yes. Keep your existing OpenAI SDK, switch base_url to https://router.flatkey.ai/v1, and use your flatkey key. The model id stays "nano-banana-pro-preview".

Is nano-banana-pro-preview free to use?

Usage is pay-as-you-go, but priced well below the official list (about 33% cheaper), and new accounts receive bonus credit on their first top-up, so you can start testing at low cost.

How do I get an API key for nano-banana-pro-preview?

Sign up on flatkey.ai, create an API key in the console, and add prepaid balance. You can start calling nano-banana-pro-preview in minutes.

What other models can I use with the same key?

One flatkey key gives you GPT, Claude, Gemini, DeepSeek, Seedance and 500+ other models through a single OpenAI-compatible endpoint and one invoice.

How reliable is nano-banana-pro-preview on flatkey?

We publish the live 30-day success rate, throughput and latency for nano-banana-pro-preview directly on this page, updated from real traffic.

More Google models

gemini-3-pro-image-preview$1.3333gemini-3.1-pro-preview$1.3333gemini-3.1-pro-preview-customtools$1.3333gemini-3.5-flash$1gemini-flash-latest$0.2gemini-3-flash-preview$0.046667

Start building with nano-banana-pro-preview

One OpenAI-compatible key, prepaid billing, and bonus credit on your first top-up. Sign up in under a minute.

Get your API key