Nano Banana Pro Text to Image

Name: Google Nano Banana Pro Text to Image
Price: 0.1139 USD
Availability: InStock
Author: Google

Setup guide View SandBase Skill

15% OFFgoogle/nano-banana-pro

Nano Banana Pro is Google's new state-of-the-art image generation and editing model

Try the model

Playground

Open playground

Input

Prompt(string)

The text prompt to generate an image from.

Additional Settings More

Customize your input with more control.

Aspect Ratio(string)

The aspect ratio of the generated image. Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16.

Output Format(string)

The format of the generated image. Allowed values: jpeg, png.

Resolution(string)

The resolution of the image to generate. Allowed values: 1K, 2K, 4K.

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Result

Example

What would you like to do next?
Open original

Examples

Select an example to load its inputs and result into the playground.

Input

{
  "aspect_ratio": "1:1",
  "prompt": "Present a clear, 45° top-down isometric miniature 3D cartoon scene of London, featuring its most iconic landmarks and architectural elements. Use soft, refined textures with realistic PBR materials and gentle, lifelike lighting and shadows. Integrate the current weather conditions directly into the city environment to create an immersive atmospheric mood. Use a clean, minimalistic composition with a soft, solid-colored background. At the top-center, place the title \"London\" in large bold text, a prominent weather icon beneath it, then the date (small text) and temperature (medium text). All text must be centered with consistent spacing, and may subtly overlap the tops of the buildings."
}

Open result ↗

Input

{
  "aspect_ratio": "1:1",
  "prompt": "An icon representing a cute dog. The background is white. Make the icons in a colorful and tactile 3D style. No text."
}

Open result ↗

Input

{
  "aspect_ratio": "16:9",
  "prompt": "A photo of an everyday scene at a busy cafe serving breakfast. In the foreground is an anime man with blue hair, one of the people is a pencil sketch, another is a claymation person."
}

Open result ↗

Human preference

Arena

Elo ratings from blind side-by-side votes, compared with other image and video models.

Rankings sourced from Artificial Analysis Arena

Leaderboard: Text to Image
Rank: #11 of 106
Elo: 1118 ±10
Gap to #1: −104

Text-to-image arena: people pick the better of two images generated from the same prompt, without seeing the model names.

#6MAI-Image-2.6Microsoft AI1166±12
#7Nano Banana 2 (Gemini 3.1 Flash Image)GoogleOn SandBase1140±10
#8Muse ImageMeta1127±11
#9GPT Image 1.5 (high)OpenAIOn SandBase1123±11
#10MAI-Image-2.6-FlashMicrosoft AI1119±12
#11Nano Banana Pro (Gemini 3 Pro Image)GoogleThis model1118±10
#12MAI-Image-2.5Microsoft AI1118±11
#13FLUX 3 ImageBlack Forest Labs1117±12
#14MAI-Image-2.5-ProMicrosoft AI1114±10
#15Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)GoogleOn SandBase1107±10

Nano Banana Pro Text to Image

Nano Banana Pro (Gemini 3 Pro Image) is Google's highest-quality image model: strong reasoning over the prompt, accurate multilingual text in the image, and 1K to 4K output.

Fields

Field	Type	Default	Notes
`prompt`	string, required	—	Up to 50,000 characters.
`aspect_ratio`	`21:9` / `16:9` / `3:2` / `4:3` / `5:4` / `1:1` / `4:5` / `3:4` / `2:3` / `9:16`	`1:1`	Output frame shape.
`output_format`	`jpeg` / `png`	`png`	Output file format.
`resolution`	`1K` / `2K` / `4K`	`1K`	Sets the per-image rate.

Billing

$0.134 per image at 1K or 2K and $0.24 at 4K, Google's list price.

Request	1K	2K	4K
One image	$0.134	$0.134	$0.24

Failed runs are not charged.

Prompting

Describe the image like a brief to a designer: subject, layout, style, and text.
Quote all text that must appear.
Use 2K or 4K for posters and print.

Limits

One image per request.

Also on SandBase

Other Nano Banana endpoints: google/nano-banana-pro/edit, google/nano-banana-2, google/nano-banana-2/edit, google/nano-banana-2-lite, google/nano-banana-2-lite/edit.

Start building

Send your first request

Submit this model through the SandBase Unified Run API.

Production API

Unified Run API endpoint

https://api.sandbase.ai/v1/run

Model ID

google/nano-banana-pro

# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "google/nano-banana-pro",
  "prompt": "a cat sitting on a windowsill, golden hour lighting, photorealistic",
  "resolution": "1K",
  "aspect_ratio": "1:1",
  "output_format": "png"
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
  status=$(printf '%s' "$result" | jq -r .status)
  case "$status" in completed|failed|timeout) break ;; esac
  sleep 2
  result=$(curl --fail-with-body --silent \
    -H "Authorization: Bearer $SANDBASE_API_KEY" \
    "https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"

2. Authentication

Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.

API key environment variable

export SANDBASE_API_KEY="YOUR_API_KEY"

Keep the key on your server. Do not expose it in browser code or commit it to a repository.

3. Queue

Submit a request

POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.

Fetch request status and result

Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.

Poll run status

curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
  -H "Authorization: Bearer $SANDBASE_API_KEY"

4. Files

Hosted files

Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.

Uploading images

Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.

5. Schema

Input

`prompt`stringrequired

The text prompt to generate an image from.

Default: "a cat sitting on a windowsill, golden hour lighting, photorealistic"

`resolution`string

The resolution of the image to generate.

Default: "1K"

Possible values: "1K", "2K", "4K"

`aspect_ratio`string

The aspect ratio of the generated image.

Default: "1:1"

Possible values: "21:9", "16:9", "3:2", "4:3", "5:4", "1:1", "4:5", "3:4", "2:3", "9:16"

`output_format`string

The format of the generated image.

Default: "png"

Possible values: "jpeg", "png"

Request body

{
  "model": "google/nano-banana-pro",
  "prompt": "a cat sitting on a windowsill, golden hour lighting, photorealistic",
  "resolution": "1K",
  "aspect_ratio": "1:1",
  "output_format": "png"
}

Output

A completed run exposes its result in output. The following is the model’s saved example, not a new generation.

Example output JSON

[
  {
    "source": "Google AI for Developers",
    "source_url": "https://ai.google.dev/gemini-api/docs/image-generation",
    "url": "https://static.sandbase.ai/examples/bb9cdb52-fbe4-4e6d-a51d-7d6444b6221a/output/4924b213-a78a-413a-a727-3d330f59b658.jpg"
  }
]

Nano Banana Pro Text to Image

Playground

Examples

Arena

Nano Banana Pro Text to Image

Fields

Billing

Prompting

Limits

Also on SandBase

Send your first request

2. Authentication

3. Queue

Submit a request

Fetch request status and result

4. Files

Hosted files

Uploading images

5. Schema

Input

promptstringrequired

resolutionstring

aspect_ratiostring

output_formatstring

Output

Nano Banana 2 Text to Image ↗

Nano Banana 2.1 Text to Image ↗

Nano Banana 2 Lite Text to Image ↗

Nano Banana 2.1 Edit ↗

Nano Banana 2 Edit ↗

Nano Banana Pro Edit ↗

`prompt`stringrequired

`resolution`string

`aspect_ratio`string

`output_format`string