Nano Banana 2 API reference
Fast Gemini images up to 4K, with up to 14 references
Call Nano Banana 2 from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.
At a glance
- Made by
- Output
- Image
- From
- 5.4 credits per image ($0.054)
- Typical time
- about 55 s
1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.
Create Image
google/nano-banana-2/text-to-image
Price
| Option | Credits (per image) | US dollars |
|---|---|---|
0.5k | 5.4 | $0.054 |
1k | 8.04 | $0.0804 |
2k | 12.12 | $0.1212 |
4k | 18.12 | $0.1812 |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 5,000 characters | Describe the image you want. |
aspect_ratioOptional | string | 16:9 | 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, 8:1 | Output aspect ratio. |
resolutionOptional | string | 1k | 0.5k, 1k, 2k, 4k | Output size tier. |
enable_web_searchOptional | boolean | false | — | Look up current facts on the web before drawing. |
enable_image_searchOptional | boolean | false | — | Look up reference pictures on the web before drawing. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "google/nano-banana-2/text-to-image",
"input": {
"prompt": "A cozy reading nook beside a rain-streaked window, warm lamp light, a sleeping orange cat on a knitted blanket, soft film grain",
"enable_image_search": false,
"enable_web_search": false,
"resolution": "1k"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"Edit Image
google/nano-banana-2/edit
Price
| Option | Credits (per image) | US dollars |
|---|---|---|
0.5k | 5.4 | $0.054 |
1k | 8.04 | $0.0804 |
2k | 12.12 | $0.1212 |
4k | 18.12 | $0.1812 |
Parameters
| Field | Type | Default | Allowed | What it does |
|---|---|---|---|---|
promptRequired | string | — | up to 5,000 characters | Say what to change and what must stay the same. |
image_urlsRequired | array<string (uri)> | — | up to 14 items | One to 14 source images, in the order your prompt refers to them. |
aspect_ratioOptional | string | auto | auto, 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, … (+1) | Output aspect ratio; auto keeps the shape of the source image. |
resolutionOptional | string | 1k | 0.5k, 1k, 2k, 4k | Output size tier. |
enable_web_searchOptional | boolean | false | — | Look up current facts on the web before drawing. |
enable_image_searchOptional | boolean | false | — | Look up reference pictures on the web before drawing. |
Example request
This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.
The example uses PopNow sample files in image_urls. Replace them with your own public HTTPS links, uploads or saved assets.
curl -X POST "https://api.popnow.ai/api/v1/jobs/createTask" \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: $(uuidgen)" \
-d '{
"model": "google/nano-banana-2/edit",
"input": {
"prompt": "Change the orange jacket to deep forest green and add soft golden-hour light; keep the face, pose and background unchanged",
"image_urls": [
"https://media.popnow.ai/influencer/examples/marco.webp"
],
"enable_image_search": false,
"enable_web_search": false,
"resolution": "1k"
}
}'The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
-H "Authorization: Bearer $POPNOW_API_KEY"