Google Gemini image model · Google
Nano Banana 2 guide for versatile AI image work
A practical guide to Google's general purpose image model for generation, editing, reference consistency, and high volume creative work.
The short answer
Nano Banana 2 is Google's Gemini 3.1 Flash Image model. Google positions it as the versatile generalist in the Nano Banana family, balancing speed, 4K generation, world knowledge, text rendering, multiple reference images, and consistency.
When to choose it
Choose Nano Banana 2 as a general purpose default when you need quality, speed, editing, references, and several output sizes without moving immediately to the premium Pro model.
Official model facts
What the official sources say
Vendor documented capabilities, kept separate from Genflow product settings.
General purpose balance
Google recommends it as the all around choice for quality, intelligence, cost, and latency.
Multiple reference images
The model is designed to process several references and maintain visual consistency.
Text and 4K generation
Google highlights reliable text rendering and image output up to 4K.
Genflow
Available in Genflow
Read directly from the current Genflow model configuration.
- Generation
- Image generation
- Duration
- N/A
- Aspect ratios
- 1:1, 3:2, 2:3, 3:4, 4:3, 9:16, 16:9
- Output
- 1K, 2K, 4K
Where it fits
- Useful default for varied image generation and editing tasks.
- Handles multiple references when products or characters need continuity.
- Genflow exposes 1K, 2K, and 4K output across common ratios.
What to review
- Complex brand systems and highly precise localization may still favor Nano Banana Pro.
- All generated images include Google's SynthID watermark, according to the official guide.
Nano Banana 2
Practical use cases
High volume campaign images
Balance speed and quality across many formats and creative directions.
Reference consistent variations
Carry a product, person, or style across several visual outputs.
Text bearing visuals
Prototype posters, covers, and layouts where rendered text matters.
FAQ
Questions creators ask
What is Nano Banana 2?
Nano Banana 2 is the public name for Google's Gemini 3.1 Flash Image model, positioned as the versatile all around image model.
Is Nano Banana 2 or Pro better?
Nano Banana 2 is the balanced default. Google positions Pro for the most complex visual tasks, advanced localization, brand consistency, and precision control.
What resolutions are available in Genflow?
Genflow currently lists 1K, 2K, and 4K output for Nano Banana 2.
Primary sources
Facts on this page are checked against these official model sources.