Does Nano Banana 2 accept reference images?

Yes, up to 14 optional references. Omit them for text-only generation.

Which output settings are supported?

The page exposes 1K, 2K, 4K and 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, 21:9, auto; use the Playground contract for the final available set.

How is Nano Banana 2 billed?

Billing is per successful generated image. Resolution or quality differences, when present, are reflected by the live page price.

How do I call the Nano Banana 2 API?

POST an asynchronous task to /v1/tasks with model set to nano-banana-2 and put generation fields inside input.

Nano Banana 2 API & Online Image Generator

About Nano Banana 2

Create or remix images with optional references, broad aspect ratios, and higher-resolution output.

The Playground and API use the same model ID: nano-banana-2. This endpoint accepts text prompts only; reference-image editing uses the separate Image-to-Image route.

Provider: Google
Task: Text-to-Image
References: Not supported
Pricing: 170 Credits / image

Model specifications

Explore reference limits, sizes, formats and quality settings for Nano Banana 2.

Reference images: Not supported
Output resolution: 1K2K4K
Aspect ratios: 1:11:41:82:33:23:44:14:34:55:48:19:1616:921:9auto
Output formats: JPGPNG
Prompt length: Up to 20,000 characters
Pricing: Per image: 170 Credits / image

Final cost depends on the output tier and input add-ons. Check the live page price and task record for the final charge.

How to use Nano Banana 2

Choose the destination and aspect ratio before composing subject, scene, material, light, and text.

Subject

Scene

Camera and light

Describe subject and scene

API Quickstart

Copy a minimal request below. See Docs for parameters, callbacks, task retrieval, and errors.

Endpoint: POST /v1/tasks
Model ID: nano-banana-2

cURL

curl -X POST "https://api.hiapi.ai/v1/tasks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "nano-banana-2",
  "input": {
    "prompt": "A cinematic product campaign with sharp text",
    "aspect_ratio": "1:1",
    "output_format": "png",
    "resolution": "2K"
  }
}'

The create request immediately returns a taskId; image generation continues asynchronously.

Read the full API documentation

Nano Banana 2

Input

More parameters

Upload assets

Generation settings

Output

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Nano Banana 2

About Nano Banana 2

Model specifications

How to use Nano Banana 2

Describe subject and scene

API Quickstart

Frequently asked questions

Choose output settings

Validate before integration