# Nano Banana prompt generator

> A Nano Banana prompt generator turns a rough idea into a full prompt for Google's Nano Banana image model. Kenerate has two: the free builder on this page, which assembles format, subject, setting, shot, style, light and exact text into one sentence (no AI, no credits), and the Enhance button in Image Studio, which rewrites your prompt with AI for 1 credit, refunded if it fails. Both feed Nano Banana 2.1.

URL: https://kenerateai.com/nano-banana-prompt-generator
Publisher: Kenerate AI (https://kenerateai.com)
Last updated: 31 October 2026

## Key facts
- Free builder (this page): Rule-based, runs in your browser, no sign-up
- AI Enhance (Image Studio): 1 credit; refunded if it fails
- What Enhance adds: Visual detail, camera, textures, lighting · English · one scene
- Prompt tags: 32 in 5 groups (camera, light, style, mood, composition)
- Surprise me: 8 built-in prompts, free
- Our real prompts: 17–39 words, most 20–26
- Runs on: Nano Banana 2.1 · 21 credits per 1K image

## Steps
1. Build the prompt — Use the builder on this page: pick a format, type the subject and setting, choose the shot and light, and add any exact text.
2. Open it in Image Studio — Press Generate with Nano Banana 2.1 — the prompt opens in Image Studio with the model selected. Set the ratio the builder suggests.
3. Enhance if you want (1 credit) — Press Enhance to let AI add detail, camera and lighting words. Read the result and put back anything it dropped.
4. Generate and refine — Generate at 1K, change one part of the formula at a time, and re-run the keeper at 2K or 4K.

## In depth

### The Nano Banana prompt formula
Every prompt behind our real Nano Banana 2.1 outputs follows this order. The builder above fills it in for you.
- 1. Format: Say what the image is first: photo, product shot, poster, infographic, logo, sticker, thumbnail. The layout follows that word.
- 2. Subject: Who or what, with the details that matter: 'a stack of fluffy pancakes with blueberries', not 'food'.
- 3. Setting: Where it is: 'on a linen table', 'on a minimal concrete staircase', 'above a waterfall canyon'.
- 4. Shot: Camera and composition: close-up, overhead, low angle, 85mm, centered with space for text.
- 5. Style: Medium and look: watercolour, flat vector, cel-shaded anime, screen print, editorial photo.
- 6. Light: One clear light: golden-hour backlight, soft window light, hard sunlight with long shadows.
- 7. Exact text: Words in quotes plus a font feel: the title 'BLUE NOTE NIGHTS' in big art-deco letters. Then 'no other text'.
- 8. Ratio: Not in the words — pick it in Image Studio: 9:16 for stories, 16:9 for thumbnails, 8:1 for banners.

### What the Enhance button actually does
Enhance sends your prompt to an AI prompt optimizer with one instruction: expand it with cinematic visual detail, camera optics, textures and lighting, always in English, as a single scene without grids or collages. It replaces the text in your prompt box. It costs 1 credit, which comes back if the optimizer fails or returns nothing usable.
Because it adds photographic language, it suits photos and product shots best. For text-heavy designs, keep your quoted words short and re-check them after enhancing.

### Why the formula works on Nano Banana
Google's prompting guide for its Nano Banana models asks for specific scene descriptions; for stylized art it says to name the style, subject and medium with outlines, colours and shading, and for text to give the exact words, a font style and the overall design [4]. Nano Banana 2.1 improved text rendering and infographic layout over Nano Banana 2 [1], which is why exact text belongs in the prompt.

### Other prompt helpers in Image Studio
Tags adds keyword phrases from 32 presets in five groups — camera and lens, lighting, aesthetics and styles, mood and atmosphere, composition. Surprise me drops in one of eight built-in example prompts. Both are free. Your recent prompts are kept in the prompt history on your device.

### About the examples
The six gallery images are unretouched Nano Banana 2.1 outputs made on 7 October 2026 for our Nano Banana pages. No new images were generated for this page, and the 12 templates were written for it without being run.

### The six example images (all Nano Banana 2.1, 7 Oct 2026)
Unretouched outputs with the prompt that made each.
- Pancake food photo (Nano Banana 2.1, 2K): "Overhead food photo of a stack of fluffy pancakes with blueberries, maple syrup drip and powdered sugar on a linen table, morning light" — https://storage.kenerateai.com/seo/ig/nbp-food.webp
- Sleep infographic (Nano Banana 2.1, 2K): "Clean infographic titled '5 Steps to Better Sleep' with five numbered steps, simple icons and short labels, soft blue palette, flat vector" — https://storage.kenerateai.com/seo/ig/nbp-infographic.webp
- Banana sticker (Nano Banana 2.1, 1K): "Cute die-cut sticker of a smiling banana wearing sunglasses giving a thumbs up, thick white border, kawaii style, white background" — https://storage.kenerateai.com/seo/ig/nbp-sticker.webp
- Electric SUV ad (Nano Banana 2.1, 2K): "Car advertisement: a silver electric SUV driving along a coastal cliff road at sunset, the headline 'GO FURTHER' in clean white letters, cinematic" — https://storage.kenerateai.com/seo/ig/nbp-carad.webp
- Collectible figurine (Nano Banana 2.1, 2K): "Collectible 1/7 scale figurine of a girl astronaut on a round acrylic base on a computer desk, figure box with illustration behind it, realistic product photo" — https://storage.kenerateai.com/seo/ig/nbp-figurine.webp
- Cobalt suit editorial (Nano Banana 2.1, 4K): "Editorial fashion photo of a model in an oversized cobalt-blue suit on a minimal concrete staircase, hard sunlight and long shadows, Vogue style" — https://storage.kenerateai.com/seo/ig/nbp-fashion.webp

### 12 Nano Banana prompts built with the formula
Templates written for this page in the formula's order — swap the subject and keep the shape. We didn't run these (the six images above are the real outputs), so expect a try or two.
- Portrait: Close-up portrait of an elderly potter with clay-dusted hands at her wheel in a sunlit workshop, natural skin texture, shallow depth of field, soft window light, 85mm photo
- Product: Product photo of a frosted glass skincare bottle standing on wet river stones, a single fern leaf beside it, crisp reflections, soft studio softbox lighting, clean pale green background, no text
- Food: Overhead food photo of a bowl of ramen with a soft-boiled egg, nori and spring onions on a dark wooden table, steam rising, warm side light
- Poster with title: Retro travel poster with the title "KYOTO IN AUTUMN" in big rounded letters at the top, a red pagoda among maple trees, flat screen-print illustration, red, orange and cream, no other text
- Infographic: Clean infographic titled "How to Brew Pour-Over Coffee" with five numbered steps, simple line icons and short labels, flat vector, warm brown and cream palette, no other text
- Sticker: Cute die-cut sticker of a sleepy cat curled up inside a teacup, kawaii style, pastel colours, thick white border, white background, no text
- Thumbnail: YouTube thumbnail: a surprised woman holding a tiny cactus next to a giant cactus, bold yellow text "I GREW THIS?" on the right, high contrast, bright background
- Anime: Anime key visual of a boy and his robot dog walking along a seaside railway at dusk, summer clouds, clean line art, cel shading, warm cinematic light, no text
- Interior: Japandi bedroom with a low oak bed, linen bedding, paper lantern and a bonsai on a side table, large window with morning mist outside, calm architectural photo
- 9:16 story: Vertical travel story frame of a cyclist riding past lavender fields towards a stone village in Provence, morning light, wide shot, natural colours
- Same product, new scene (attach a photo): Image 1 is our product. Place this exact bottle on a marble bathroom shelf beside folded white towels and a eucalyptus sprig, soft morning light, product photography. Keep the bottle's shape, label and colour identical.
- Character sheet (attach your character): Image 1 is our character. Make a clean reference sheet on a plain light grey background: front, side and back views plus four facial expressions, same outfit, colours and art style in every view, no text.

References:
[1] Google AI for Developers — Gemini API docs: Nano Banana 2.1 (gemini-nano-banana-2.1): https://ai.google.dev/gemini-api/docs/models/gemini-nano-banana-2.1
[2] Google on X — "Meet Nano Banana 2.1" (6 Oct 2026): https://x.com/Google/status/2107501209154204148
[3] Google — Nano Banana 2 announcement (the model 2.1 updates): https://blog.google/innovation-and-ai/technology/ai/nano-banana-2/
[4] Google AI for Developers — Gemini API: Nano Banana image generation, prompting guide (read 31 Oct 2026): https://ai.google.dev/gemini-api/docs/image-generation

## FAQ
Q: What is a Nano Banana prompt generator?
A: A tool that turns a short idea into a complete prompt for Nano Banana, Google's image model. A good one fills in the parts Nano Banana responds to — format, subject, setting, shot, style, light and any exact text — so you don't start from a blank box. The builder on this page does that for free; Image Studio's Enhance button does it with AI.

Q: Does Kenerate have a Nano Banana prompt generator?
A: Yes, two. The builder on this page is free and rule-based: it runs in your browser, calls no AI and needs no account. In Image Studio, the Enhance button sends your prompt to an AI prompt optimizer that adds visual detail, camera optics, textures and lighting, in English and as one scene. Enhance costs 1 credit and the credit is refunded if it fails.

Q: Is the Enhance button made for Nano Banana?
A: No — it's a general prompt optimizer that works with every image model in Image Studio, Nano Banana 2.1 included. It's good at adding photographic detail. For posters, logos and infographics, check that your quoted text and layout instructions survived the rewrite.

Q: What is the best prompt format for Nano Banana?
A: Format, subject, setting, shot, style, light, then exact text in quotes and 'no other text'. Google's prompting guide asks for specific, descriptive scenes; for text it recommends stating the exact words, a font style and the overall design. Pick the aspect ratio in the app rather than writing it in the prompt.

Q: How long should a Nano Banana prompt be?
A: Around 20 to 30 words is enough for most images. The 26 prompts behind our real Nano Banana 2.1 outputs run from 17 to 39 words, most of them 20 to 26. Longer prompts help only when they add specific detail.

Q: Can I use JSON prompts with Nano Banana?
A: Some prompt sites share JSON-style prompts. Google's own guide uses plain descriptive sentences, and every output on our Nano Banana pages came from plain sentences; we haven't tested JSON prompts, so we can't say they do better.

Q: How do I write a Nano Banana prompt for editing a photo?
A: Say the change first, then everything that must stay: "Change his outfit to a tailored navy suit. Keep his face, pose, the brick wall and the light the same." Our Nano Banana image editor page shows six real edits made that way.

Q: Is the Nano Banana prompt generator free?
A: The builder on this page is free with no sign-up. Enhance needs a Kenerate account and 1 credit; every new account gets 25 free credits. Generating with Nano Banana 2.1 itself needs a one-time credit pack (21 credits per 1K image).

Q: Where can I find ready-made Nano Banana prompts?
A: Our Nano Banana prompts page has 26 prompts with the real Nano Banana 2.1 image each one made, and this page lists 12 more templates built with the formula.

## Related pages
- Nano Banana 2.1: https://kenerateai.com/model/nano-banana-2.1
- Nano Banana image generator: https://kenerateai.com/nano-banana-image-generator
- Nano Banana prompts: https://kenerateai.com/nano-banana-prompts
- Nano Banana image editor: https://kenerateai.com/nano-banana-image-editor
- Nano Banana video generator: https://kenerateai.com/nano-banana-video-generator
- Is Nano Banana free?: https://kenerateai.com/nano-banana-free
- Nano Banana 2: https://kenerateai.com/model/nano-banana-2
- AI prompt enhancer: https://kenerateai.com/prompt-enhancer

## Sources
- Google AI for Developers — Gemini API docs: Nano Banana 2.1 (gemini-nano-banana-2.1): https://ai.google.dev/gemini-api/docs/models/gemini-nano-banana-2.1
- Google on X — "Meet Nano Banana 2.1" (6 Oct 2026): https://x.com/Google/status/2107501209154204148
- Google — Nano Banana 2 announcement (the model 2.1 updates): https://blog.google/innovation-and-ai/technology/ai/nano-banana-2/
- Google AI for Developers — Gemini API: Nano Banana image generation, prompting guide (read 31 Oct 2026): https://ai.google.dev/gemini-api/docs/image-generation