Does Nano Banana Pro accept reference images?

Yes, up to 8 optional references. Omit them for text-only generation.

Which output settings are supported?

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

How is Nano Banana Pro 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 Pro API?

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

Nano Banana Pro API & Online Image Generator

About Nano Banana Pro

Generate high-detail commercial images or remix optional references with broad ratios and up to 4K output.

The Playground and API use the same model ID: nano-banana-pro. 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: 340 Credits / image

Model specifications

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

Reference images: Not supported
Output resolution: 1K2K4K
Aspect ratios: auto1:116:99:163:44:33:22:35:44:521:9
Output formats: PNGJPG
Prompt length: Up to 20,000 characters
Pricing: Per image: 340 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 Pro

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-pro

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-pro",
  "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 Pro

Input

More parameters

Generation settings

Output

Related image models

Seedream 5.0 Lite

Qwen Image 3.0

Nano Banana 2

About Nano Banana Pro

Model specifications

How to use Nano Banana Pro

Describe subject and scene

API Quickstart

Frequently asked questions

Choose output settings

Validate before integration