One family. Every available model.

Cheap Nano Banana API: Models & Pricing

Compare Nano Banana models for image generation and editing. Check resolution-based prices and model IDs, then use the same key for text-to-image and reference-image workflows.

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Nano Banana API prices

OmniaKey price

Nano Banana 2.1

gemini-nano-banana-2.1

$0.019–$0.039

USD / request

Model details

Nano Banana Pro

gemini-3-pro-image

$0.039–$0.069

USD / request

Model details

Nano Banana 2

gemini-3.1-flash-image

$0.019–$0.039

USD / request

Model details

Nano Banana 2 Lite

gemini-3.1-flash-lite-image

$0.019

USD / request

Model details

Nano Banana

gemini-2.5-flash-image

$0.019

USD / request

Model details

These are OmniaKey catalog prices in USD. Availability and permitted models depend on your API key. Review the model details and tool fees before sending a paid request.

How Nano Banana API prices are calculated

Compare the same output size and billing unit. A per-request price cannot be compared directly with a per-token rate. Open the model details for size tiers, accepted parameters and image-editing support.

Tool fees

From model selection to your first request

Choose a model

Open a model to check its capabilities, supported parameters and exact API ID.

Configure your key

Pair your OmniaKey key with the OmniaKey API URL. The setup guide includes a connection check.

Connect your application

Use the protocol documented for your model. Image and video requests run as asynchronous tasks.

Read the API documentation

Questions before you connect

How do I choose a cheap Nano Banana API?

Compare the total cost of your workload across models in this family. Account for output, cache, resolution and duration where relevant. The lowest starting price does not always give the lowest cost for an acceptable result.

Is an OmniaKey key an official Google key?

No. OmniaKey issues its own key for the OmniaKey endpoint and account balance. A key issued by the model provider uses that provider’s endpoint and billing. The setup guide links to both routes.

Can I try an image or video model in the browser?

Yes. Open a supported model page to use its generator after signing in. Browser generation uses your account balance. You only need an API key when connecting your own application.