Nano Banana 2.1 Prompt Generator

Generate optimized prompts for Google's Nano Banana 2.1, the October 2026 update built on Gemini 3.6 Flash. It brings sharper text and infographics, mask-based editing, stronger subject consistency, three Thinking levels, and web + image search grounding at up to 4K. Built around Google's Creative Director-style prompting.

Be specific: describe who/what is in the image with details

0/6

Quick Palettes

Generated Prompt

Fill in the form and click "Generate" to create an optimized Nano Banana 2.1 prompt.

Tip: Be as specific as possible with your subject description. Instead of "a dog," try "a golden retriever puppy with a red bandana."

Nano Banana 2.1 Tips

  • • Write like a Creative Director — full sentences, never tag soup ("dog, park, 4k")
  • • Blend up to 14 reference images; 2.1 keeps up to 4 characters and 10 objects consistent, so name them all
  • • Mask / Doodle Edit: scribble over the area to change on your image, then describe only what goes there
  • • Thinking defaults to Medium; use High for dense infographics, diagrams and multi-character scenes
  • • Turn on Search Grounding for real places, products and species; Web + Image when looks matter
  • • Wide panoramas and 4:1 / 8:1 / 1:4 / 1:8 ratios no longer tile at 2K and 4K
  • • Small text can blur at 1K; render text-heavy layouts at 2K or 4K

Nano Banana 2.1 Prompt Templates

Copy-ready image briefs built around what this model actually rewards. Swap the [BRACKETED] parts for your own subject and settings, then paste straight into the tool.

Multi-Character Scene

Character

Nano Banana 2.1 keeps up to 4 characters consistent in one scene.

[NUMBER] characters in [SETTING]. Character A: [FULL DESCRIPTION — build, hair, clothing with materials]. Character B: [FULL DESCRIPTION]. Character C: [FULL DESCRIPTION]. They are [WHAT THEY ARE DOING / HOW THEY RELATE SPATIALLY]. [LIGHTING], [CAMERA ANGLE]. Each character stays visually distinct and consistent with the description given.

Grounded Real-World Subject

Photography

Web + Image Search grounding makes real places, products and landmarks accurate.

[REAL SUBJECT — specific landmark, product model, or location by name] photographed [FRAMING] in [CONDITIONS, e.g. late afternoon light, light rain]. Render the actual architectural and material details accurately. [FOREGROUND ELEMENT]. [LENS/PERSPECTIVE]. Photorealistic, true-to-life proportions and colour.

Multilingual Text Graphic

Typography

Multilingual text rendering with an explicit layout.

A [GRAPHIC TYPE] with the headline "[TEXT]" in [LANGUAGE/SCRIPT] across the top in [FONT STYLE], and "[SECOND TEXT]" in [SECOND LANGUAGE] beneath it in a smaller face. [VISUAL ELEMENT] below the text block. [BACKGROUND]. Both scripts rendered correctly and legibly, balanced hierarchy, [ASPECT RATIO].

Extreme Aspect Ratio Banner

Layout

Wide ratios (4:1 / 8:1) now render without tiling at 2K and 4K.

An ultra-wide banner. [SUBJECT] positioned at [POSITION, e.g. the far left third], with [SECONDARY ELEMENT] balancing the right. Wide empty space in the centre for overlay text. [BACKGROUND] extending seamlessly across the full width. [LIGHTING]. Composition designed to read at 8:1 — nothing important near the extreme edges.

4K Detail Study

Photography

High-resolution work where fine texture matters.

Extreme close-up of [SUBJECT], filling the frame. Every [TEXTURE DETAIL, e.g. fibre, pore, scratch, water droplet] is resolved sharply. [LIGHTING, e.g. raking side light picking out surface relief]. Shallow depth of field with the focal plane on [WHERE]. Macro photography, 4K detail, natural colour.

High-Thinking Composition

Scenes

High Thinking level for logically constrained scenes.

[SCENE WITH A LOGICAL OR PHYSICAL CONSTRAINT — e.g. a room where every reflective surface shows a consistent reflection of the same window]. Verify before rendering that [THE CONSTRAINT, e.g. shadow directions all agree with a single light source at upper right, and the item count is exactly N]. [STYLE], [LIGHTING], [ASPECT RATIO].

Doodle Mask Edit

Editing

New in 2.1: scribble over a region and only that area changes.

Edit only the area I have scribbled over on the image: replace it with [NEW ELEMENT, e.g. a terracotta pot of trailing ivy]. Match the scene's [LIGHT DIRECTION AND COLOUR TEMPERATURE], perspective and scale, with a natural contact shadow. Remove all of my scribble marks in the final image. Leave every unmarked pixel unchanged, including [PRESERVE LIST, e.g. the people, the window light, the colour grade].

Data Infographic

Layout

Infographic accuracy is one of 2.1's biggest jumps. Use High thinking.

A clean vertical infographic titled "[TITLE]" at the top in [FONT STYLE]. [NUMBER] sections stacked top to bottom, each with an icon, a bold label and a short value: 1. "[LABEL]" — "[VALUE]"; 2. "[LABEL]" — "[VALUE]"; 3. "[LABEL]" — "[VALUE]". [COLOUR PALETTE] with [DOMINANT COLOUR] as the accent. Generous margins, consistent icon style, every label spelled exactly as written. Render at 2K, [ASPECT RATIO].

How to Use the Prompt Generator

1

Pick Mode & Describe Your Vision

Choose Generate, Edit, Mask / Doodle Edit, or Multi-Image Blend. Pick a use case category, set the resolution (1K, 2K or 4K) and Thinking level, and describe your subject. For real-world subjects, turn on Search Grounding for accurate locations, monuments, products, and species.

2

Generate Your Prompt

Click Generate. The tool drops you into a Creative Director-style brief — natural-language sentences, concrete materials and lighting, explicit color palette mapping, exact text directives if needed, and a preserve list when editing.

3

Copy & Create

Paste into the Gemini app, Google AI Studio, the Gemini API (model: gemini-nano-banana-2.1), Flow, or Stitch. For 4K hero shots, iterate at 1K with Minimal thinking, then rerun the winner at 4K with High.

Frequently Asked Questions

What is Nano Banana 2.1?

Nano Banana 2.1 is Google's newest image generation and editing model, released October 6, 2026 as the successor to Nano Banana 2. It is built on Gemini 3.6 Flash and runs at Flash-tier speed. It is rolling out across the Gemini app, AI Mode in Search, Google AI Studio, the Gemini API, Flow, Stitch, and Google Ads.

How does this prompt generator work?

You fill in structured inputs: subject, scene, style, composition, lighting, color palette, generation mode, thinking level, and intended use. Our AI then assembles them into a Nano Banana 2.1-optimized prompt with natural-language sentences (not tag soup), camera and material specifics, exact text directives, and explicit preserve lists for edits.

What changed from Nano Banana 2 to Nano Banana 2.1?

Google says 2.1 is better across the board, with the biggest gains in visual design, mask-based editing, and subject consistency. Text rendering and infographic layout are noticeably more accurate, wide panoramas and the extreme 4:1 / 8:1 / 1:4 / 1:8 ratios no longer tile at 2K and 4K, and Thinking now has three levels (minimal, medium, high) instead of on/off. It also costs roughly half as much per image on the Gemini API. The 512px draft tier from Nano Banana 2 is not part of 2.1, which outputs at 1K, 2K, or 4K.

What are Generate, Edit, Mask / Doodle Edit, and Multi-Image Blend?

Generate creates an image from text. Edit changes an uploaded photo with natural-language instructions; fill in the Preserve field so the model doesn't drift. Mask / Doodle Edit is new in 2.1: draw or scribble over the area you want changed on the image itself, then describe what goes there, and only that region is edited. Multi-Image Blend combines up to 14 references; describe each by index ("Image 1: base scene; Image 2: jacket reference") and how they interact.

Which Thinking level should I pick?

Medium is the default and the right choice for most images. Use Minimal for quick drafts and simple scenes. Use High for dense infographics, labeled diagrams, multi-character scenes, or anything that combines search grounding with spatial reasoning. Google's own testing shows thinking measurably improves image quality.

When should I enable Search Grounding?

Turn grounding on for real-world subjects where accuracy matters: famous places, monuments, species, branded products, or current events. Nano Banana 2.1 can ground on both Google Web Search and Google Image Search; pick Web + Image when the visual appearance of a real thing matters. Leave it off for stylized work, fictional scenes, or people.

What resolution and aspect ratios does Nano Banana 2.1 support?

Output comes in 1K (default), 2K, or 4K. Standard ratios include 1:1, 3:2, 2:3, 4:3, 3:4, 16:9, and 9:16, plus extreme banner and tall-panel ratios 4:1, 8:1, 1:4, and 1:8, which Google fixed so they no longer tile at 2K and 4K.

How many reference images and characters can it keep consistent?

You can combine up to 14 reference images in one prompt. Nano Banana 2.1 keeps up to 4 characters and up to 10 distinct objects consistent. Name and describe each one explicitly so the model can lock identity.

How accurate is text rendering in Nano Banana 2.1?

Text and infographic accuracy are among the biggest upgrades. For best results, wrap literal text in quotes, specify font style, size, color and placement, and spell tricky brand names letter by letter. Very small text can still blur at 1K, so render text-heavy designs at 2K or 4K.

Why natural language instead of keyword tags?

Nano Banana 2.1 inherits Gemini's reasoning, so it understands full sentences far better than comma-separated keyword lists. Google's prompting guidance recommends Creative Director-style briefs over "tag soup" like "dog, park, 4k, realistic." Our generator enforces this and replaces vague praise with concrete visual facts.

Is this tool free to use?

Yes. You get 1 free prompt generation per day with no signup required. For unlimited access, sign up for a Promptslove membership which includes all AI tools and 29,000+ premium prompts.

Where can I use the generated prompts?

The prompts are tuned for Nano Banana 2.1 in the Gemini app, Google AI Studio, the Gemini API (model: "gemini-nano-banana-2.1"), Flow, and Stitch. They also work well on Nano Banana Pro, GPT Image 2.5, Midjourney, FLUX.2, and Seedream.

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