Nano Banana 2
GoogleAvailableGoogle's fast image model for generation and editing, with up to 10 reference images and 1K, 2K or 4K output.
- Text → image
- Edit
1K
52 cr / image
$0.052
2K
78 cr / image
$0.078
4K
117 cr / image
$0.117
- Queued
- Processing
- Succeeded
What Nano Banana 2 is good for
Marketing images at volume
Generate product and campaign images per image at 1K, then move up to 2K or 4K for the ones you keep.
Wide banners and tall formats
Use ratios such as 8:1, 4:1, 1:4 and 1:8 alongside the standard sizes.
Edits from several references
Pass up to 10 reference images to edit a picture or combine several into one.
Input parameters
JSON Schema| Name | Type | Default | Description |
|---|---|---|---|
| prompt (required) | string | — | What to generate, or how to change the input images. Up to 20,000 characters. |
| image_urls | string[] | — | Up to 10 reference or source images, as public HTTPS URLs. |
| aspect_ratio | enum | "auto" | Output aspect ratio. One of auto, 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, 8:1. |
| resolution | enum | "1K" | Output resolution. One of 1K, 2K, 4K. Sets the price. |
| output_format | enum | "png" | File format of the image. One of png, jpg. |
Fields of the input object. Unknown fields are rejected with 400 invalid_request.
curl -X POST https://genkiln.com/v1/tasks \
-H "Authorization: Bearer $GENKILN_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "nano-banana-2",
"input": {
"prompt": "Product photo of a matte ceramic coffee cup on a walnut desk, morning window light",
"aspect_ratio": "auto",
"resolution": "1K",
"output_format": "png"
}
}'
# 202 Accepted -> { "id": "task_...", "status": "queued", "cost_credits": ... }
curl https://genkiln.com/v1/tasks/task_... \
-H "Authorization: Bearer $GENKILN_API_KEY"The samples use the values in the Playground form. Create a task, then poll it until it is final, or add callback_url to get a signed webhook.
Nano Banana 2 API pricing
| Variant | Credits | USD | 100 images |
|---|---|---|---|
| 1K | 52 | $0.052 | $5.200 |
| 2K | 78 | $0.078 | $7.800 |
| 4K | 117 | $0.117 | $11.700 |
The cost is set by the parameters you send and returned as cost_credits when the task is created. 1 credit = US$0.001. Buy credits
Nano Banana 2 questions
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