Is this Google's real Nano Banana Pro?

Yes: it is Google's Gemini 3 Pro Image, the model Google calls Nano Banana Pro, with its reasoning step before drawing. Requests start on an economy route; with Official fallback on, a request it cannot complete runs on the official route.

Why do 1k and 2k cost the same?

Google prices Gemini 3 Pro Image the same for 1K and 2K output and higher for 4K. Both of our routes keep that structure, and the economy route starts well below Google's price.

Nano Banana Pro or Nano Banana 2?

Pro for dense text, layouts and careful edits; Nano Banana 2 for speed, a 0.5K draft tier, 8:1 banners and search, at a lower price per image.

Can it make NSFW images?

No. Google's content policy refuses them. In our tests Mild-level portraits rendered from text, but anything stronger was filtered out, as was a Mild-level wardrobe swap in an edit. The economy route turns away Mild-level prompts that the official route allows, so with Official fallback on those requests run on the official route at the official price.

Can it write text into images?

Yes. Quote the text and say where it sits; our cover edit rendered the masthead NOCTURNE, an issue line and a cover line exactly as written.

What is included in the quote for an edit?

Billed per image by size tier. The quote shows the starting price on the economy route, which adds nothing per source image, and the most the edit can cost if it runs on the official route, which adds a small fixed charge for each source image. Refused requests are not charged.

Why does the quote show two prices?

Every request runs on the economy route first and costs the economy price when it succeeds there. With Official fallback on, the default, a request the economy route refuses or cannot complete runs again on the official route and costs the official price instead, so the quote shows the starting price and the most the request can cost. The higher amount is held when you submit, and the difference is returned if the economy route delivers. Turn Official fallback off to pay only the economy price, accepting that some requests will then be refused or fail.

Nano Banana Pro API: Gemini 3 Pro Image for Text and Layouts

google/nano-banana-pro/text-to-image

Nano Banana Pro text-to-image is Google's Gemini 3 Pro Image model. It plans the layout before drawing, which shows in dense text, diagrams and multi-part layouts, at 1k, 2k or 4k in ten aspect ratios.

From $0.067/imageWith Official fallback: up to $0.107

Run model View API

Input

Text to image

Prompt257/5000

Aspect ratio

Resolutionaffects price

Official fallback

Safety checkerOff

SpicyAPI does not run a safety checker on this model. Your prompt and media go to the model as written, and the model itself decides what comes back.

Checking your account before enabling submission and pricing.

Output

Ready for a new run

Example result

Animate

Edit

Split into layers

{
  "model": "google/nano-banana-pro/text-to-image",
  "input": {
    "aspect_ratio": "2:3",
    "resolution": "2k",
    "official_fallback": true,
    "prompt": "Intimate editorial photograph in a dim bedroom: a man with his shirt unbuttoned embraces a woman in a champagne satin slip dress from behind, his lips close to her neck, her eyes closed and a small smile, one lamp glowing behind them, 50mm lens, soft grain."
  }
}

Introduction

Nano Banana Pro Text to image is Google's Gemini 3 Pro Image, released on 20 November 2025, generating images from a written prompt. It reasons about the request before drawing, which helps with dense text, diagrams and layouts with several parts, and renders at 1k, 2k or 4k in ten shapes, starting well below Google’s list price.

Choose a mode by starting material

What you have	Mode
a written brief	Nano Banana Pro Text to image
an image to change	Nano Banana Pro Edit

Key features & highlights

Economy route and Official fallback

Requests start on an economy route priced well below Google's list price. With Official fallback on, the default, a request it cannot complete runs again on the official route at the official price. Either way the model is Google's Gemini 3 Pro Image with its reasoning step.

Plans before it draws

The model works out the layout first, so prompts that describe where each element sits, or that quote several lines of text, come back arranged as written. In our cover test every quoted line landed where the prompt put it.

Same price for 1k and 2k

Google charges the same for 1K and 2K output, so 2k is effectively free resolution; 4k costs more. Most of our 2k renders came back in 20 to 45 seconds.

Request parameters

Request parameters for Nano Banana Pro · Text to Image
Parameter	Required	Description
`prompt`	Yes	Up to 5,000 characters. Describe subject, setting, light and lens in plain sentences; words in quotes are rendered as text in the image. at least 1 characters · at most 5000 characters
`aspect_ratio`	No	One of ten shapes from 21:9 to 9:16; 16:9 by default. The shape does not change the price. `1:1` · `3:2` · `2:3` · `3:4` · `4:3` · `4:5` · `5:4` · `9:16` · `16:9` · `21:9` · Default: `16:9`
`resolution`	No	1k (default), 2k or 4k. 1k and 2k cost the same; 4k costs more and renders 4096 pixels on the long side. `1k` · `2k` · `4k` · Default: `1k`
`official_fallback`	No	On by default. Each request runs on the economy route first. Default: `true`

Pricing

Billed per image by size tier; the aspect ratio does not change the price. Each request starts on the economy route at the economy price. With Official fallback on, the default, a request the economy route refuses or cannot complete runs again on the official route at the official price, so the quote shows both the starting price and the most the request can cost; turn it off to pay only the economy price. Refused requests are not charged.

Pricing
Specification	Price
`1k`	$0.0668 / image (With Official fallback: up to $0.1072)
`2k`	$0.0668 / image (With Official fallback: up to $0.1072)
`4k`	$0.118 / image (With Official fallback: up to $0.192)

Use cases

Editorial and brand portraits

Portraits that follow a named lens, aperture and light, for pitch decks, mood boards and campaign drafts.

Layouts with text

Posters, covers, menus and signage where several pieces of text share the frame with an image and each must be spelled right.

Diagrams and infographics

Labelled diagrams, simple charts and step-by-step visuals, where the reasoning step helps keep each label attached to the right part.

Explore key use-case tutorials

Prompt guide & pro tips

Write it like a shot list

Subject, wardrobe, setting, lens, aperture, light direction and grade, in that order, as full sentences.

Quote and position all text

Every word that must appear goes in quotes with a position; unquoted words are treated as description.

Start at 2k

It costs the same as 1k with this model, so render at 2k by default and keep 4k for print.

Be literal about the camera

An 85mm lens at f/1.4 with window light from the right is followed literally; vague words such as cinematic leave the choice to the model.

Describe people by what they wear and do

Pose, clothing, expression and where each person stands give the planning step enough to place everyone correctly.

API quick start

# Generate the idempotency key once; reuse it when retrying after a lost response.
export SPICY_IDEMPOTENCY_KEY="${SPICY_IDEMPOTENCY_KEY:-$(uuidgen)}"
curl -X POST https://api.spicyapi.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $SPICY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $SPICY_IDEMPOTENCY_KEY" \
  -d '{
  "model": "google/nano-banana-pro/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "resolution": "1k",
    "aspect_ratio": "16:9"
  }
}'

# Copy data.taskId from the response into TASK_ID, then poll the status.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.spicyapi.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $SPICY_API_KEY"

See the API reference for authentication, the complete schema, polling, and error handling.

Missing the model you need?

Tell us what to add and where you would use it. Requests go to the people who decide what gets onboarded next.

GOOGLE GEMINI IMAGE MODEL

Nano Banana Pro API at a glance

Google's Nano Banana Pro (Gemini 3 Pro Image), the image model that reasons first, starting well below Google's list price.

Starting route: Economy; Requests start on an economy route priced well below Google's list price; with Official fallback on, one it cannot complete runs on the official route at the official price.
Largest size tier: 4K; 1k and 2k cost the same; 4k renders 4096 pixels on the long side.
Reference images: 14; Up to fourteen sources in one edit.
Aspect ratios: 10; From 21:9 to 9:16.

Results

What you can make with Nano Banana Pro

Portraits
Lens and light, followed literally
A man in an unbuttoned black silk shirt on the edge of an unmade bed in morning light. The prompt names an 85mm lens at f/1.4 and window light from the right, and the render follows both.
Text to image, 2k, 4:5.
Text in edits
A magazine cover over a photograph
The jazz-lounge photograph turned into a cover with the masthead NOCTURNE, an issue line and a cover line, all spelled as quoted, while the woman and the piano stayed as they were.
Edit, one source, 4:5.
Relighting
One light source changed, the scene kept
The same lounge relit by a row of pillar candles on the piano, the stage lights switched off and her dress catching the warm light.
Edit, one source, 4:5.

Content test

Is Nano Banana Pro uncensored? What we tested

We ran each level on our live setup and checked every clip frame by frame. A pass means the content was actually on screen, not just that the request went through.

Content levels tested on Nano Banana Pro, by mode
Level	Image editing	Text to image
MildThe lightest prompts in the test	RefusedTested Sep 29, 2026	Not tested yet
ModerateWhere filtered models start to refuse	Not tested yet	Not tested yet
StrongThe middle of the scale	Not tested yet	RefusedTested Sep 29, 2026
Very strongWhere most models start to hold back	Not tested yet	Not tested yet
MaximumThe top of the scale	Not tested yet	Not tested yet

Renders: on screen as written. Softened: generated, but milder than what was written. Refused: rejected. Not tested yet: we have not run that level on that mode.

How each mode behaves

All modes: Google's content policy applies to every prompt and result. In our tests text to image rendered a Mild-level portrait and a couple scene but filtered out anything stronger, and editing refused the Mild-level wardrobe swap. Refused requests are not charged. The economy route adds a stricter check of its own: in our tests it refused a Mild-level prompt that the official route renders, while our couple example passed. With Official fallback on, such a request runs again on the official route at the official price; with it off, the request is refused and not charged.
All modes: It reasons before drawing, so it is slower than Nano Banana 2: most of our text-to-image requests took 20 to 50 seconds. Edits finished in under a minute on the economy route and took up to about three minutes on the official route. Edits come back as JPEG, text to image as PNG.

Use cases

What to build with the Nano Banana Pro API

Covers, posters and signage
Magazine covers, event posters and packaging where several lines of type share the frame with a photograph.
Lens-aware portraits
Portraits that follow a named lens, aperture and light direction, for editorial and brand photography mock-ups.
Relighting and compositing
Change the light in a finished photo or add text over it, keeping the people and the setting as they were.

Prompts

Nano Banana Pro prompt examples you can copy

Paste one into the playground as it is, then change one thing at a time.

Text to image
Lens and light, followed literally
Portrait of a man in an unbuttoned black silk shirt sitting on the edge of an unmade bed in morning light, forearms on his knees, looking into the lens. Shot on an 85mm lens at f/1.4, shallow depth of field, warm window light from the right, muted film colour grade.
Why it works. A portrait at 4:5 and 2k with the lens, aperture and light direction written out; the shallow focus and window light follow the prompt.
Try this prompt
Image editing
A magazine cover over a photograph
Turn this photograph into a magazine cover. Add the masthead "NOCTURNE" across the top in a wide high-contrast serif, the line "ISSUE 12 · AUTUMN" small under it, and one cover line at the bottom left: "THE LAST SET STARTS AT MIDNIGHT". Keep the woman, the piano and the light exactly as they are.
Why it works. One source turned into a cover: the masthead, the issue line and the cover line are quoted with positions, and the photograph is protected.
This mode starts from your own image: add it in the playground before you run.
Try this prompt
Image editing
One light source changed, the scene kept
Relight the scene in image 1 with candlelight only: switch off the stage lights and place a row of lit pillar candles along the top of the piano, warm flickering light on her face and the satin, the rest of the lounge falling into deep shadow. Keep her, her dress and her pose unchanged.
Why it works. One source. The only change is the light: stage lights off, candles on the piano. The woman, her dress and her pose are listed as fixed.
This mode starts from your own image: add it in the playground before you run.
Try this prompt

Pricing

Nano Banana Pro API pricing

One image starts at $0.067 at 1K and $0.118 at 4K.

With Official fallback: up to $0.107–$0.192

The playground shows the exact price for your settings before you run. Failed or timed-out tasks are usually not charged. Some models charge for content refusals as stated on their model page; check those billing terms before submitting.

See every price tier

Get started

How to use the Nano Banana Pro API in three steps

Step 1
Go straight to 2k
1k and 2k cost the same with this model, so there is little reason to draft at 1k unless you need smaller files.
Step 2
Write the layout, not keywords
Say where each element sits and quote every piece of text. The model plans the frame before rendering, so precise layout instructions pay off.
Step 3
Give each reference a role
In edits, say what each source contributes and what must stay unchanged, as you would brief a retoucher.

Open the playground Get an API key

Parameter reference and code samples are in the API and Readme tabs at the top of this page.

Why SpicyAPI

Why run Nano Banana Pro on SpicyAPI

No filter from us
We add no content filter of our own. What the model renders is what you get back.
Tested, not guessed
Content labels come from real generations we ran and checked, with the test date on the page.
Pay per result, in dollars
No subscription and no credits. Failed or timed-out tasks are usually not charged. Some models charge for content refusals as stated on their model page; check those billing terms before submitting.
One key for every model
One API key and balance cover image, video, audio and chat models, so you can explore more models from the same account.

FAQ

Nano Banana Pro API FAQ

About Nano Banana Pro

Nano Banana Pro is Google's Gemini 3 Pro Image: it reasons before drawing, renders dense text and layouts, edits with up to fourteen references at 1K, 2K or 4K, and starts well below Google’s list price. Google’s content policy applies, so it serves design, editorial and brand work rather than requests Google's policy turns away.

All Nano Banana models3

Nano Banana 2.1NewText to image · Image editingGoogle official price: $0.034From $0.022per imageWith Official fallback: up to $0.048
Nano Banana 2Text to image · Image editingGoogle official price: $0.045From $0.036per image
Nano Banana ProCurrentText to image · Image editingGoogle official price: $0.134From $0.067per imageWith Official fallback: up to $0.107

Workbench

Input

Output

Introduction

Choose a mode by starting material

Key features & highlights

Economy route and Official fallback

Plans before it draws

Same price for 1k and 2k

Request parameters

Pricing

Use cases

Editorial and brand portraits

Layouts with text

Diagrams and infographics

Prompt guide & pro tips

Write it like a shot list

Quote and position all text

Start at 2k

Be literal about the camera

Describe people by what they wear and do

API quick start

Lens and light, followed literally

A magazine cover over a photograph

One light source changed, the scene kept

How each mode behaves

Covers, posters and signage

Lens-aware portraits

Relighting and compositing

Lens and light, followed literally

A magazine cover over a photograph

One light source changed, the scene kept

Go straight to 2k

Write the layout, not keywords

Give each reference a role

No filter from us

Tested, not guessed

Pay per result, in dollars

One key for every model

Is this Google's real Nano Banana Pro?+

Why do 1k and 2k cost the same?+

Nano Banana Pro or Nano Banana 2?+

Can it make NSFW images?+

Can it write text into images?+

What is included in the quote for an edit?+

Why does the quote show two prices?+

About Nano Banana Pro

All Nano Banana models3

Related models and next tasks