What is Nano Banana 2?

Nano Banana 2 is the codename for Google's Gemini 3.1 Flash Image model—combining the Pro-level quality of Nano Banana Pro with the lightning-fast speed of Gemini Flash. It's Google's latest and most versatile AI image generator.

How is it different from Nano Banana Pro?

Nano Banana 2 generates images significantly faster than Pro while maintaining the same quality level. It also adds Google Search grounding, supports 15 aspect ratios (vs 11), longer prompts (20K vs 5K characters), and costs less per generation.

What resolutions are available?

Nano Banana 2 supports 1K, 2K, and 4K resolution with tiered pricing—significantly more affordable than Pro at every resolution level.

What is Google Search grounding?

Google Search grounding allows the model to use real-time web information when generating images. This ensures accurate maps, diagrams, infographics, and visuals that reflect current facts and data.

How many reference images can I use?

You can upload up to 14 reference images to guide composition, blend scenes, transfer styles, or maintain subject consistency across complex compositions.

What aspect ratios are supported?

15 aspect ratios including: auto, 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, and 21:9—the widest selection of any image model.

Can it generate readable text?

Yes—Nano Banana 2 has excellent text rendering inherited from Pro. Generate perfectly legible text in multiple languages, from short taglines to detailed marketing copy.

What's the maximum prompt length?

Nano Banana 2 supports prompts up to 20,000 characters—4x longer than Pro—allowing extremely detailed creative briefs with complex requirements.

Does it include watermarks?

All images include Google's SynthID watermark, which is invisible to the human eye but detectable by AI systems, promoting responsible AI image generation.

Can I use images commercially?

Yes. All generated images are yours to use commercially in campaigns, products, websites, social media, or client projects without restrictions.

Nano Banana 2 – Pro Quality at Flash Speed with Gemini 3.1 Flash

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