Nano Banana image generator — type a prompt, get a 1K to 4K image

It's any tool that runs Google's Nano Banana image model to turn a written prompt into a picture. Google's newest version is Nano Banana 2.1 (model ID gemini-nano-banana-2.1), released on 6 October 2026. On Kenerate AI you use it in Image Studio: type a prompt, optionally add reference images, choose a ratio and size, and generate.

Open kenerateai.com/app/image?model=nano-banana-2.1, write what you want — for example "Overhead food photo of a stack of fluffy pancakes with blueberries, maple syrup drip and powdered sugar on a linen table, morning light" — pick an aspect ratio and 1K, 2K or 4K, and press generate. Every example on this page shows the exact prompt that made it.

Not on Kenerate: Nano Banana models are not on the free plan and unlock with any one-time credit pack, after which a 1K image costs 21 credits (31.5 at 2K, 42 at 4K). The 25 free sign-up credits work on the free-plan models such as Qwen Image 3.0 and Flux 2. Google offers Nano Banana in the Gemini app within usage limits. Our Nano Banana free page compares every option.

Yes. Nano Banana 2.1 takes up to 14 reference images per prompt, on Kenerate and in Google's docs. Attach the photo, say what to keep ("same face, same curly hair") and describe the new picture — the poster on this page was made that way from one photo. To change an existing photo rather than make a new one, see the Nano Banana image editor.

On Kenerate: 1K, 2K or 4K, in 14 aspect ratios — 1:1, 4:5, 3:4, 2:3, 9:16, 1:4, 1:8, 5:4, 4:3, 3:2, 16:9, 21:9, 4:1 and 8:1. Google's docs list 1K, 2K and 4K for 2.1 and say it fixed tiling artifacts on wide and panoramic ratios.

Usually, if the text is short and quoted. Google says 2.1 improved text rendering and infographic layout, and the titles on the poster, infographic and thumbnail examples here are legible and spelled right. Nano Banana also likes to add lines you didn't ask for (the jazz poster gained a subtitle and a footer), so end the prompt with "no other text". Long paragraphs and tiny labels can still break, so proofread before you publish.

Kenerate adds no visible watermark. Google states that all images its Nano Banana models generate include SynthID, an invisible digital watermark that identifies them as AI-made.

An optional switch that lets Nano Banana 2.1 look things up with Google Search before drawing, so facts in the picture are more likely to be right. Our solar-system infographic used it. It adds 4.2 credits per image on Kenerate.

Same model family, different app. Google's Gemini app gives image generation with Nano Banana 2 to users without a paid plan at standard limits (Google's limits page, as we checked on 23 October 2026). Kenerate runs Nano Banana 2.1 with the ratio, resolution, reference and web-search controls exposed, pay-per-image with credits that never expire.