Nano Banana 2 on Oakgen: Credits, Specs, Editing and What Happened to Lite

Oakgen runs three Nano Banana models as of 2026-10-25: Nano Banana 2, Nano Banana 2.1 and Nano Banana Pro, each with a text-to-image mode and an Edit mode. A 1K image costs 14 credits on Nano Banana 2.1, 28 on Nano Banana 2 and 51 on Nano Banana Pro. Nano Banana 2 Lite is retired from Oakgen and cannot be selected.

Credit prices come from Oakgen's pricing code and model configs, read on 2026-10-25. Facts about Google's models come from Google's own Gemini API pages, read the same day.

Which Nano Banana models are on Oakgen, and which are not?

Nano Banana is Google's name for its Gemini image models. Here is where each one stands on Oakgen as of 2026-10-25.

Google lists 2.1, 2, 2 Lite and Pro as stable models on its Gemini models page, which Google last updated on 2026-10-22. Google's deprecations page dates the stable Nano Banana 2 and Pro ids to May 28, 2026 and Lite to June 30, 2026, and names Nano Banana 2.1 as the replacement for Nano Banana 2. None of the three Oakgen models has an announced shutdown date there.

You open all three in the Image Generator for new images and the Image Editor for edits. Each has a model page: Nano Banana 2.1, Nano Banana 2 and Nano Banana Pro.

How do Nano Banana 2, 2.1 and Pro compare on credits and options?

Nano Banana 2.1 is the cheapest at every resolution it supports, and the only one with a thinking level control. Nano Banana 2 is the only one with a 512 size. Pro costs the most.

Prices are credits per image, as of 2026-10-25. Asking for four images costs four times the per-image price. All three also take an optional seed. Oakgen's own help text for 2.1 says results are not guaranteed to repeat across providers, so treat a seed as a starting point.

On the numbers alone, Nano Banana 2.1 replaces Nano Banana 2 for most jobs on Oakgen. It costs half as much at 1K and 2K, takes more input images and has more aspect ratios. Nano Banana 2 still makes sense when you want the 512 size for very cheap thumbnails or when you have a prompt tuned for it.

What happened to Nano Banana 2 Lite?

Nano Banana 2 Lite is retired from Oakgen. Both the text-to-image and Edit versions are on Oakgen's retired model list, so you cannot pick Lite in the Image Generator or the Image Editor. It still exists at Google.

On Google's side, Lite is a stable Gemini API model with the id gemini-3.1-flash-lite-image. Google's image generation guide, read 2026-10-25, says Lite "only supports 1K resolution", does not support Google Search grounding, and is "Not optimized for multiple reference inputs or multi-turn sequential editing." The Gemini API pricing page lists it at $0.0336 per 1K image, which is the same price that page lists for Nano Banana 2.1 at 1K.

If you came here for Lite on Oakgen, the closest live option is Nano Banana 2.1 at 1K. It costs 14 credits per image as of 2026-10-25, the lowest price for any Nano Banana model on Oakgen. It also goes up to 4K, takes up to 14 images in Edit mode and supports web search, which Lite does not.

If you only need the cheapest possible draft from any model, GPT Image 2 at low quality costs 2 credits at 1024x1024, 1024x1536 or 1536x1024, as of 2026-10-25. Grok Imagine Image costs 7 credits per image. Both are on the same credit balance.

How much does Nano Banana cost on Oakgen?

Between 14 and 102 credits per image as of 2026-10-25, depending on model and resolution (see the table above). There is no free plan and no signup credit, and new Ultimate subscriptions since 2026-10-15 do not include free generations. Every image uses credits from a plan or a credit add-on.

To estimate volume, divide your credits by the per-image price. A plan with 4,000 credits covers about 285 Nano Banana 2.1 images at 1K, about 142 Nano Banana 2 images at 1K, or about 78 Nano Banana Pro images at 1K or 2K. Plan prices and allowances are on the pricing page and can change. The generator shows the credit price before you run.

How does Nano Banana compare with Google's own API prices?

Google sells the same models per image through the Gemini API. Its pricing page, read 2026-10-25, lists these standard paid-tier prices:

Going direct suits developers who already have a Google Cloud account and want to call one model from code. Oakgen suits people who want a browser interface, image upload and storage, and one credit balance across Google, OpenAI and xAI image models plus video and audio.

When should you use Nano Banana 2.1, Nano Banana 2 or Pro?

Use Nano Banana 2.1 by default. It is the cheapest, it is Google's named successor to Nano Banana 2, and it has the most options. Raise the thinking level when a prompt has many parts that must all land.

Use Nano Banana 2 when you want 512 drafts at 21 credits, or when you have a working prompt for it and do not want to retune.

Use Nano Banana Pro for final images when 2.1 misses. Google's image generation guide says Pro has thinking "enabled by default and cannot be disabled in the API", and lists different reference limits for it (up to 6 object images, 5 character images and 3 style images). On Oakgen, Pro costs the same at 1K and 2K, so render at 2K if you pay for Pro. Our Nano Banana Pro handbook goes further on Pro.

We did not run these three side by side for this article, so we make no claim about which one looks best.

When is another model a better choice?

GPT Image 2 is worth trying when the image is mostly text, such as a poster, a menu or a label, and when you want very cheap low-quality drafts at 2 credits. See GPT Image 2 vs Nano Banana Pro and the GPT Image 2 model page.

GPT Image 2.5 Flare and Sunburst cost 5 credits per image at low quality, and Grok Imagine Image costs 7 credits per image.

If you need Nano Banana 2 Lite specifically, or Imagen, Midjourney or Seedream, Oakgen does not offer them. Use Google's Gemini API for Lite, or the vendor's own app for the others. For a wider list, see Nano Banana 2 alternatives and the best AI image generators by use case.

How do you generate an image with Nano Banana on Oakgen?

1. Open the Image Generator and sign in.
2. Pick Nano Banana 2.1, Nano Banana 2 or Nano Banana Pro in the model list.
3. Write the prompt. Put any text you want in the image inside quotes.
4. Set resolution, aspect ratio and number of images. On 2.1, set the thinking level in the advanced settings.
5. Check the credit price on the button, then generate.
6. Download the result, open it in the Image Editor for changes, or send it to the Image Upscaler.

What prompt formula works for Nano Banana image generation?

Describe the image in the order a photographer would plan it, and say where it will be used:

[Subject] in [setting], [composition or camera], [lighting], [style], [mood], made for [use case], no text, no logos

For example: "A ceramic espresso cup on a concrete cafe table, close-up product photo, soft morning window light, premium editorial style, calm and minimal, made for a landing page hero, no text, no logos."

Ask for "no text" unless the image needs words, because stray lettering is the most common thing you will have to fix. Naming the use case (a paid social ad, a thumbnail, a landing page hero) helps the model pick framing and empty space.

Which Nano Banana prompts can you copy?

These carry over from our older Lite prompt guide and work the same on Nano Banana 2.1, 2 and Pro.

• Ad: "A dramatic product shot of a running shoe splashing through rain on a city street, low camera angle, hard rim light, high-energy sports campaign style, made for a paid social ad, no text, no logos"
• Beauty ad: "A skincare bottle on wet black stone with botanical ingredients around it, macro product photography, softbox highlights, premium beauty campaign style, no text, no logos"
• Social post: "A surreal close-up of a glass sphere floating above dark rippling water, orange light refracted inside the sphere, cinematic contrast, designed as a scroll-stopping social post, no text"
• Product concept: "A futuristic desk lamp concept made from brushed aluminum and frosted glass, photographed in a quiet design studio, precise industrial design, soft shadows, product concept render, no logo"
• Landing page: "Abstract visual for an AI analytics dashboard, layered translucent panels floating in a dark workspace, subtle green and white highlights, premium SaaS landing page hero, no readable UI text"
• Text in the image: "A neon sign reading 'OPEN 24 HOURS' in a rain-soaked alley at night, reflections on wet pavement, 35mm film look"

How do you edit images with Nano Banana on Oakgen?

Use Nano Banana 2.1 Edit, Nano Banana 2 Edit or Nano Banana Pro Edit in the Image Editor. Upload one image or several (up to 14 on 2.1 Edit, up to 10 on the others), then describe the change. Edit mode costs the same credits as text-to-image, and aspect ratio "auto" keeps the shape of your input.

A formula that keeps edits under control:

Keep [what must stay the same]. Change [specific thing]. Make it [style or mood]. Do not change [protected details].

Examples:

• Product: "Keep the bottle shape, label, and color exactly the same. Change the background to a dark premium studio with wet stone reflections. Make it feel like a luxury skincare campaign. Do not add text or logos."
• Sneaker: "Keep the sneaker design and color exactly the same. Change the scene to a rainy city street with dramatic reflections and motion energy. Do not add branding or text."
• Portrait: "Keep the person's face, hair, and outfit consistent. Change the background to a warm outdoor cafe at golden hour. Make the image feel natural and editorial."

Make one change per request and build up in small steps. One large rewrite is harder to control than three small edits. For a way to score edits, see our controlled AI image editing benchmark.

What should you check before publishing a Nano Banana image?

Zoom in on the parts image models most often get wrong:

• small text, labels and typography
• faces and hands, especially small ones in the background
• product labels, logos and brand colors
• fine edges such as hair, glass and jewelry
• charts, maps, diagrams and any object that has to be factually correct

Google's image generation guide says all images from these models carry a SynthID watermark. Commercial use on Oakgen follows section 4.4 of the Terms. Oakgen does not claim ownership of eligible outputs, but your right to use an output depends on the Terms, the law, Google's terms and the rights in anything you upload.

How we checked this

On 2026-10-25 we read Oakgen's model configs for Nano Banana 2, 2.1 and Pro (resolutions, aspect ratios, image limits, prompt limits and options), Oakgen's retired model list, and credit prices generated from Oakgen's pricing code on 2026-10-24. Plan facts come from the live pricing page. Facts about Google's models come from the Gemini API models, pricing, deprecations and image generation pages listed below, read the same day.

We did not run Nano Banana 2, 2.1, Pro or Lite side by side for this article, and we make no quality ranking. This page replaces our older Nano Banana 2 Lite posts, which described a model Oakgen no longer runs. Earlier versions of this page quoted launch statistics, a 4096x4096 native size and "any aspect ratio", which we could not confirm on Google's pages, so we removed them.

Frequently asked questions

Is Nano Banana 2 Lite available on Oakgen?

No. Nano Banana 2 Lite (Google model id gemini-3.1-flash-lite-image) is retired from Oakgen, for both text-to-image and editing. The cheapest Nano Banana model on Oakgen as of 2026-10-25 is Nano Banana 2.1 at 14 credits per 1K image. Google still lists Lite as a stable model in its Gemini API, so developers can call it there directly.

How many credits does Nano Banana 2 cost on Oakgen?

As of 2026-10-25, Nano Banana 2 costs 21 credits at 512, 28 at 1K, 41 at 2K and 55 at 4K, per image. Nano Banana 2 Edit costs the same. Turning on web search adds a small charge, and the generator shows the full credit price before you run.

What is the difference between Nano Banana 2 and Nano Banana 2.1?

Google calls Nano Banana 2.1 (gemini-nano-banana-2.1) its newer stable Flash image model and names it as the replacement for Nano Banana 2 (gemini-3.1-flash-image) on its deprecations page, read 2026-10-25. On Oakgen, 2.1 is cheaper at every shared resolution (14, 20 and 46 credits for 1K, 2K and 4K), adds a thinking level setting and extra aspect ratios such as 4:1 and 8:1, and accepts 14 images in Edit mode. It has no 512 size.

How many reference images can I use with Nano Banana on Oakgen?

References go through the Edit models. Nano Banana 2.1 Edit accepts up to 14 input images, and Nano Banana 2 Edit and Nano Banana Pro Edit accept up to 10, as of 2026-10-25. The text-to-image versions take a prompt only.

Is Nano Banana Pro worth the extra credits?

It costs 51 credits per image at 1K or 2K and 102 at 4K on Oakgen as of 2026-10-25, against 14 to 46 for Nano Banana 2.1. Pro is Google's Gemini 3 Pro Image model, and Google's image generation guide says its thinking cannot be turned off. We did not run side-by-side tests, so the practical answer is to draft on 2.1 and rerun only the prompts where 2.1 falls short on Pro.

Do I get free Nano Banana generations when I sign up?

No. Oakgen has no free plan and no signup credits, and new Ultimate subscriptions since 2026-10-15 do not include free generations. Every Nano Banana image uses credits from a paid plan or add-on, shown on the pricing page.

Sources

1. Google AI for Developers, Gemini models
2. Google AI for Developers, Gemini API pricing
3. Google AI for Developers, Gemini API deprecations
4. Google AI for Developers, image generation with Gemini (Nano Banana)