Nano Banana Pro
prospolabs/nano-banana-pro
Google's Gemini 3 Pro Image. Premium reasoning-based generation with the best compositional accuracy. Accepts up to 14 reference images for complex multi-element scenes.
Starts from
Retail $0.150
Input
Typically completes in 5–15s.
Result
IdleOr write your own prompt and hit Generate.
01overview
What is Nano Banana Pro?
Nano Banana Pro is Google's Gemini 3 Pro Image model — the premium reasoning tier that allocates extra compute to understanding how elements relate inside a scene. It is built for compositional accuracy: precise typography, strict spatial layout, and multi-element scenes where every object has to land in the right place. On Prospolabs you run it pay-per-generation in plain USD, from $0.09 per image at 1K/2K versus a $0.15 retail rate — about 40% off.
Where the cheaper sibling Nano Banana 2 optimizes for speed and volume, Nano Banana Pro is the finalize-it tier: hero images, packaging, print-ready layouts, and any deliverable where text and composition must be exact. It accepts up to 14 reference images to compose a single output, and supports text-to-image, image editing, and reference-guided generation.
Prospolabs charges the same USD price whether you generate from the dashboard or the API — no token math, no subscription, no minimums. Top up from $5, generate, and only pay for what you keep: failed runs are auto-refunded.
Premium Nano Banana Pro, ~40% under retail
Prospolabs runs Nano Banana Pro at $0.09/image for 1K and 2K (retail $0.15) and $0.18/image at 4K (retail $0.30) — roughly 40% off, with the exact same price over the API. A batch of 100 images at 1K or 2K is $9.00. No tokens, no subscription, no minimums — top up from $5, pay only for images you keep, and get auto-refunded on failed runs. Need it cheaper and faster for high-volume work? The Nano Banana 2 sibling runs $0.048/image at 1K on Prospolabs.
02capabilities
What Nano Banana Pro can do
Reasoning-based composition
Gemini 3 Pro Image reasons about the relationships between elements before it renders, so complex multi-object scenes with strict spatial layout hold together. This is the differentiator over faster Flash-based models — Pro thinks harder about hard scenes.
Up to 14 reference images
In edit mode you can pass up to 14 reference images and compose them into one coherent output — ideal for stitching products, characters, brand assets, or moodboard inputs into a single controlled result.
Best-in-class text rendering
Pro is the tier you reach for when typography has to be exact: posters, packaging, UI mockups, infographics, and print-production layouts where legible, correctly-spelled text matters.
Resolution up to 4K
Generate at 1K, 2K, or 4K. On Prospolabs, 1K and 2K are both $0.09/image and 4K is $0.18/image — each about 40% under the retail $0.15 / $0.30 rates.
Full control surface
Tune aspect_ratio, resolution, num_images (1-4 per call), output_format (png/jpeg/webp), and safety_tolerance — the same controls in the dashboard and over the API.
03use cases
What people build with Nano Banana Pro
Print-ready and packaging art
Camera-ready packaging, magazine layouts, and posters where text accuracy and composition cannot drift. Generate at 4K on Prospolabs for $0.18/image.
Hero and campaign images
High-stakes deliverables — landing-page heroes, ad creative, launch visuals — where you want maximum reasoning depth on a small number of final assets.
Multi-element product scenes
Compose up to 14 reference images into one shot: place a product into a styled environment, combine characters, or assemble brand elements into a single controlled output.
UI and infographic mockups
Diagram-like layouts and product mockups that depend on legible, correctly-placed text — exactly where Pro's typography strength pays off.
04api
Call Nano Banana Pro from your code
The Prospolabs API is one endpoint. Send POST /v1/generate with model id "nano-banana-pro" and a "mode" field — "generate" for text-to-image or "edit" to compose up to 14 reference images into one output. You get a generation_id plus an output_url valid for 7 days, and the API price matches the dashboard price exactly.
Full Nano Banana Pro API reference →- 01
Top up your Prospolabs balance (from $5) and grab an API key from the dashboard.
- 02
POST to /v1/generate with model "nano-banana-pro", mode "generate", your prompt, and controls (aspect_ratio, resolution 1K/2K/4K, num_images 1-4, output_format).
- 03
For editing, set mode "edit" and attach up to 14 reference images to compose a single output.
- 04
Read generation_id and output_url from the response and download the image within 7 days.
- 05
Inspect the cost on your balance — you're billed per image in USD, and any failed run is auto-refunded.
?questions
Nano Banana Pro FAQ
Nano Banana Pro is Google's Gemini 3 Pro Image model — the premium, reasoning-based tier built for compositional accuracy, exact text rendering, and complex multi-element scenes. On Prospolabs you run it pay-per-generation in USD from $0.09/image.
On Prospolabs it's $0.09/image at 1K and 2K (retail $0.15) and $0.18/image at 4K (retail $0.30) — about 40% off. A batch of 100 images at 1K/2K totals $9.00. Pay-as-you-go in USD, top up from $5.
Nano Banana Pro is the premium reasoning tier for the hardest compositions, exact typography, and high-stakes final assets. Nano Banana 2 is the cheaper, faster sibling for iteration and high volume — $0.048/image at 1K on Prospolabs. Many teams iterate in Nano Banana 2 and finalize the keepers in Pro.
Up to 14 reference images can be composed into a single output in edit mode, making it well suited to multi-element scenes, product placement, and combining brand assets.
Yes. Prospolabs charges the identical USD price whether you generate Nano Banana Pro images in the dashboard or via POST /v1/generate. There are no tokens, subscriptions, or per-seat fees.
1K, 2K, and 4K. On Prospolabs 1K and 2K are both $0.09/image and 4K is $0.18/image. You also control aspect_ratio, num_images (1-4), output_format, and safety_tolerance.
Failed runs are automatically refunded on Prospolabs — you only pay for images that successfully generate. Each successful output_url stays valid for 7 days.
Top up from $5, create an API key, and POST to /v1/generate with model "nano-banana-pro" and mode "generate" or "edit". You can also generate directly in the dashboard at the same price.
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