# Nano Banana

Synthesize low-cost and resource-friendly images in seconds for mobile apps and rapid prototyping processes using the nano-banana model.

## API Information

- **Model Slug:** nano-banana
- **Branded URL:** https://www.eachlabs.ai/google/nano-banana/nano-banana
- **Provider:** Google
- **Category:** Text to Image
- **Output Type:** array
- **Status:** active
- **Base Cost:** $0.04 per image
- **Estimated Processing Time:** 5 seconds
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/nano-banana

## Pricing

- **Charge Type:** dynamic
- **Estimate:** $0.04 per image
- **Pricing Details:** default: $0.04

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| prompt | string | Yes | - | - | Text description of the image to generate. |
| aspect_ratio | string | No | 1:1 | 21:9, 1:1, 4:3, 3:2, 2:3, 5:4, 4:5, 3:4, 16:9, 9:16 | The aspect ratio of the output image. |
| output_format | string | No | png | jpeg, png | Output image format. Gemini always returns PNG; the pipeline converts to the requested format before upload. |
| num_images | integer | No | 1 | 1–4 | Number of images to generate. Each image is a separate API call. |

## Example Request

```bash
curl -X POST https://api.eachlabs.ai/v1/prediction/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "nano-banana",
  "input": {
    "prompt": "a cool banana with sunglesses"
  }
}'
```

## Output Schema

Response returned by `GET /v1/prediction/{id}` when the job completes:

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "array",
  "metrics": {
    "predict_time": "number (seconds)"
  }
}
```

## Polling

```bash
curl https://api.eachlabs.ai/v1/prediction/{PREDICTION_ID} \
  -H "Authorization: Bearer YOUR_API_KEY"
```

| Status | Meaning |
|--------|---------|
| `processing` | Still running — poll again |
| `success` | Done — read `output` |
| `error` | Failed — read `message` / `details` |

## Webhook (alternative to polling)

Pass `"webhook_url": "https://your.host/path"` in the create request. Eachlabs POSTs this payload when the job ends:

```json
{
  "exec_id": "prediction-uuid",
  "status": "succeeded",
  "output": "https://...",
  "error": ""
}
```

`status` is `"succeeded"` or `"failed"`. `exec_id` equals the `predictionID` from create. Return 2xx within 30 seconds.

## Errors

Error body: `{ "status": "error", "message": "...", "details": "..." }`

| Code | Meaning |
|------|---------|
| `400` | Invalid input |
| `401` | Missing / invalid `Authorization` bearer token |
| `404` | Unknown model or prediction id |
| `429` | Rate limit — 100 creates / min, 10 concurrent per key |
| `5xx` | Retry with backoff |

## Overview

**nano-banana — Text-to-Image AI Model**

Developed by Google as part of the **nano-banana** family, nano-banana is a text-to-image AI model powered by the Gemini 2.5 Flash Image architecture, designed for rapid, low-latency image generation ideal for mobile apps and prototyping workflows. This **Google text-to-image** solution excels in producing high-quality visuals in seconds, supporting resolutions up to 1K for efficient, resource-friendly outputs that prioritize speed without sacrificing detail. Users searching for a **text-to-image AI model** with conversational editing capabilities will find nano-banana's multimodal processing—handling text prompts alone or combined with images—enables unprecedented control for iterative design.

## Usage Notes

- API Base URL: `https://api.eachlabs.ai/v1`
- Authentication: send `Authorization: Bearer YOUR_API_KEY`. Generate a key from the Eachlabs dashboard at https://www.eachlabs.ai/dashboard/api-keys.
- File-typed parameters (`*_url`, `image_url`, `video_url`, `audio_url`, etc.) accept publicly-reachable HTTPS URLs only. Upload your asset first (GCS / S3 / your CDN) and pass the resulting URL. Data-URIs and localhost URLs are rejected.
- For structured parameters (arrays / objects) send real JSON values, not stringified payloads.
- Monetary values are reported in USD; per-token / per-megapixel rates may be billed in micro-cents internally.
- Prefer `webhook_url` over polling for long-running predictions — see the Webhook Callback section.