Nano Banana Pro
| Provider | |
| Model name | Nano-Banana-Pro |
| Endpoint | /v1/chat/completions |
| Result | Markdown image content in choices[0].message.content |
| Pricing | See HiAPI Pricing |
Nano Banana Pro is the higher-quality Nano Banana tier for brand campaigns, launch visuals, and assets where detail and typography matter.
Key Parameters
Section titled “Key Parameters”| Parameter | Type | Notes |
|---|---|---|
model | string | Use Nano-Banana-Pro |
messages | array | Put the prompt in a user message |
extra_body.google.image_config.aspect_ratio | string | Common values include 1:1, 16:9, 9:16, 3:4 |
extra_body.google.image_config.image_size | string | Common values include 1K, 2K, and 4K |
stream | boolean | Set to false |
Example
Section titled “Example”curl -X POST https://api.hiapi.ai/v1/chat/completions \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "Nano-Banana-Pro", "stream": false, "messages": [{"role": "user", "content": "Create a premium smartwatch launch poster with dark background, brushed metal details, and clean English headline"}], "extra_body": { "google": { "image_config": {"aspect_ratio": "16:9", "image_size": "2K"} } } }'Next Steps
Section titled “Next Steps”- Read the Image Generation guide
- Compare with Nano Banana 2
- Review API Reference