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Model guides

Nano Banana 2 Lite model guide

A practical guide to Nano Banana 2 Lite on GPT Image Hub: Google's fastest and cheapest Gemini image model, with measured render times, real 1K examples, and when to pick Nano Banana 2.1 instead.

Icon, sticker, and emoji-style concepts.Fast drafts before a final render on a larger model.Simple product and interior scenes at 1K.
Nano Banana 2 Lite
Nano Banana 2 Lite model guide visual
Google Geminigemini-3.1-flash-lite-image
Quality1KReferences3Aspect ratiosauto / 1:1 / 4:3
Direct answer

Nano Banana 2 Lite is Google's fastest and cheapest Gemini image model. On GPT Image Hub it renders 1K images for 27 credits, and in the Hub's tests most images finished in 12 to 26 seconds. Google notes that it is not optimized for many reference images or long edit sequences, so choose Nano Banana 2.1 for text-heavy layouts, 2K or 4K output, and multi-image edits.

Official model IDgemini-3.1-flash-lite-image
ProviderGoogle Gemini
Hub quality tier1K
Reference imagesUp to 3
Price27 credits at 1K
Aspect ratiosauto, 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16, 5:4, 4:5, 21:9
Cost per image27 credits · ≈ $0.027See pricing

Visual examples

Visual examples

Nano Banana 2 Lite model guide model showcase
Icon concept sheet

Three weather icons on one sheet in 12 seconds.

Icon concept sheet

Three weather icons on one sheet in 12 seconds.

Three weather app icons: sun, cloud, raindrop.

One icon, finished

The cloud from the sheet turned into a single app icon.

Turn the cloud icon into one app icon; keep its colors.

Draft fast, finish big

Draft on Lite at 1K, then render the winner at a higher resolution.

Render the approved concept again at 2K.

Best use cases

  • Icon, sticker, and emoji-style concepts.
  • Fast drafts before a final render on a larger model.
  • Simple product and interior scenes at 1K.
  • High-volume prompt testing where speed matters most.

Where to be careful

  • 2K or 4K output; Lite renders 1K only. Use Nano Banana 2.1 for larger sizes.
  • Multi-reference or multi-step edits, which Google says Lite is not optimized for.

Strengths

Google's fastest Gemini image model: most 1K images in the Hub's tests took 12 to 26 seconds.

27 credits per 1K image, the same price as Nano Banana 2.1 at 1K.

Clean flat-style output for icons, stickers, and simple product scenes.

Accepts a reference image for quick, single-step edits.

Use cases

Icon and sticker concepts

Generate quick sets of icons, stickers, and mascots to compare directions.

Fast drafts

Test layouts and ideas at 1K before rendering the winner on a larger model.

Simple product scenes

Clean lifestyle shots for listings and social posts.

Workflow

01

Sketch the set

Ask for several options on one sheet.

02

Pick and isolate

Attach the sheet and turn one option into a finished asset.

03

Upscale elsewhere if needed

Render the approved idea at 2K or 4K with Nano Banana 2.1.

Prompting guidance

  • Name the format first: icon set, sticker, product shot, or concept sheet.
  • Lite may add short labels to sheets; say "no labels" when you need a clean image.
  • Keep prompts short and visual; Lite favors clear, simple compositions.
  • For edits, attach one reference and say exactly what to keep.

Copy-ready prompts

Example 1

Three app icon concepts for a weather app on one sheet: sun, cloud and raindrop motifs, rounded squares, soft gradients, clean vector style, no text.

Example 2

Die-cut sticker of a cheerful avocado character giving a thumbs up, thick white outline, flat colors, subtle drop shadow, plain light grey background, no text.

Example 3

Using the reference sheet, turn the cloud icon into a single app icon on a light background, keep its colors and style, no text.

Example outputs generated on GPT Image Hub

Three weather app icon concepts (sun, cloud, rain) generated with Nano Banana 2 Lite
1K, 12 s. Three icon concepts on one sheet; Lite added short labels although the prompt asked for no text. 27 credits. Generated on GPT Image Hub, 23 Oct 2026
Die-cut sticker of a cheerful avocado character giving a thumbs up, generated with Nano Banana 2 Lite
1K, 13 s. Die-cut sticker with a clean white outline. 27 credits. Generated on GPT Image Hub, 23 Oct 2026
White ceramic table lamp on a walnut side table in a warm living room, generated with Nano Banana 2 Lite
1K (1200×896, 4:3), 112 s. A simple product scene; this render was slower than Lite's usual 12 to 26 s. 27 credits. Generated on GPT Image Hub, 23 Oct 2026
The cloud icon from the concept sheet as a single app icon, edited with Nano Banana 2 Lite
Reference-image edit of the sheet above: the cloud as one app icon, 1K, 26 s. 27 credits. Edited on GPT Image Hub, 23 Oct 2026

Official sources

FAQ

How is Nano Banana 2 Lite different from Nano Banana 2.1?

Google describes Lite as its fastest and cheapest Gemini image model. It renders 1K only and is not optimized for many reference images or multi-step edits. Nano Banana 2.1 adds 2K and 4K and handles text-heavy layouts and multi-image edits better. On GPT Image Hub both cost 27 credits at 1K.

How fast is Nano Banana 2 Lite?

In the Hub's tests most 1K images took 12 to 26 seconds; one product scene took 112 seconds.

Can Nano Banana 2 Lite edit images?

Yes. Attach up to 3 reference images, although Google recommends other models for complex multi-image edits. In the Hub's test it turned one icon from a concept sheet into a finished app icon in 26 seconds.

Use this model

Start from a prompt template or compare models first

Use the generator when you already know the model, or compare all supported models when the prompt needs a different balance of speed, detail, and reference inputs.