Google Banana / Gemini Image / Nano Banana 2 / Text to image
google_banana/gemini-3.1-flash-image-preview/text_to_image
Async
Generate an image from a text prompt.
Parameters
| Name | Type | Required | Description | Allowed values | Bundle dim. |
|---|---|---|---|---|---|
| prompt | string | yes | Text prompt describing the desired output. | — | — |
| resolution | string | no | Output image resolution tier. | 0.5K, 1K, 2K, 4K | — |
| aspect_ratio | string | no | Output aspect ratio. | 1:1, 3:4, 4:3, 9:16, 16:9 | — |
| callback_url | string | no | Webhook URL invoked when async task completes. | — | — |
| images_count | integer | no | — | — | — |
Example request
{
"prompt": "A serene mountain lake at dawn, photorealistic",
"resolution": "2K",
"aspect_ratio": "16:9",
"images_count": 1
}Example response
{
"status": "queued",
"task_id": "tsk_01H..."
}