ColorChanger - AI Image Color EditorColorChanger
NEWNano Banana 2.1 is live: try a free preview

Nano Banana 2.1 AI Image Generator & Editor

Create and edit images with Nano Banana 2.1, Google's newest image model, right in your browser. No Google AI plan needed. Generate a free preview, add up to 4 reference images, and download in up to 4K only when you love the result.

Reference images (optional)

Add up to 4 images to edit or combine. Leave empty to generate from text.

Resolution

Free preview · Download in full quality with any plan

Your image will appear here.

Create with Nano Banana 2.1 in 3 Steps

01

Describe your image

Write what you want to see, or upload up to 4 reference images to edit a photo, restyle a product or combine several shots into one scene. You only sign in when you press generate, and your prompt and images are waiting for you when you come back.

02

Choose a size and generate

Pick an aspect ratio and 1K, 2K or 4K resolution. A 1K image costs 2 credits, 2K costs 3 and 4K costs 4. If a generation fails, your credits come straight back.

03

Preview, refine, download

Check a free watermarked preview first. Happy with it? Unlock the full-quality original of that same image with any plan, with no re-generating and no extra credits. Not quite right? Adjust the prompt and go again.

What's new

Why Nano Banana 2.1 Is Worth Trying Right Now

In Google's own launch benchmarks, Nano Banana 2.1 scores ahead of both Nano Banana 2 and Nano Banana Pro on overall preference. Here is what that means in practice. Every figure is Google's claim, labelled and dated, not an independent test.

Nano Banana 2.1 vs Nano Banana 2 vs Nano Banana Pro

How Google's October 2026 release compares with the model it succeeds and with the premium Pro model. Nano Banana 2.1 ranks first on every preference score in the table, with its widest lead in multi-character consistency, while Nano Banana 2 and Pro sit within a point of each other on multi-reference editing.

Nano Banana 2.1Nano Banana 2Nano Banana Pro
Built onGemini 3.6 FlashGemini 3.1 Flash ImageGemini 3 Pro Image
Overall preference (Elo)1050990935
Multi-character consistency (Elo)11069781011
Multi-reference editing (Elo)1066988989
Infographic design (Elo)1048961912
Maximum output resolution4K4K4K

Elo scores are reported by Google in the Nano Banana 2.1 model card (Thinking mode on, October 2026) and have not been independently verified. Resolution from Google's Gemini API pricing page. ColorChanger is not affiliated with Google.

What You Can Do with Nano Banana 2.1

One model for generating, editing and combining images, all in your browser.

Text to image

Write the way you would brief a designer: subject, setting, light and mood. Then choose auto, 1:1, 16:9, 9:16, 4:3, 3:4 or 21:9 and get a finished image. Start with a quick 1K draft, then re-run the winner at 4K.

Natural-language editing

Upload a photo and say what to change: swap the background, restyle an outfit, shift the lighting or recolor a product. Your photo is the starting point, so the composition carries over, and you can keep refining the result with follow-up edits.

Multi-image composition

Combine up to 4 reference images, such as a person, a product, a style and a location, into one coherent scene. The model itself accepts up to 14 references (4 characters and 10 objects), and 4 covers most edits. Tell the model what role each image plays.

Clear text in images

Titles, labels and short captions render legibly for posters, ads and mockups, and Google highlights localized text across several languages. Put the exact wording in quotes for the best results, and keep each line short.

Subject consistency

Keep faces, products and mascots recognizable across a series. Google notes that character consistency is not always perfect, so check every frame before you publish, and reuse the same reference image to anchor the look.

1K, 2K and 4K output

Draft at 1K for 2 credits, step up to 2K for 3, or go straight to 4K for 4. Same prompt, same model, your call. Spend more only on the images that earn it.

Built for Creators, Marketers and Teams

Social media ad with a readable headline created with Nano Banana 2.1
Marketing
Ads and social posts
Turn one brief into on-brand visuals sized for every channel: 1:1 for feeds, 9:16 for stories, 16:9 for banners. Try: a summer sale poster with the headline "SUMMER SALE" centered at the top. Change only the aspect ratio to get a matching set. Great for launches, promotions and event announcements.
The same black mug photographed on four different color backdrops
E-commerce
Product photos
Upload a product shot and restage it on bold color backdrops or in new scenes like a kitchen counter, while keeping the product recognizable across your whole catalog. Useful for seasonal campaigns, marketplace listings and quick A/B tests of backgrounds. Keep the product photo as your reference every time.
Storyboard frames with a consistent character
Storytelling
Storyboards and characters
Hold a character steady from frame to frame for comics, pitch decks and concept art. Upload your character sheet as a reference, then describe each new scene: the setting, the action and the camera angle. Save each frame in My Creations to build the full sequence.
Poster with clean typography
Design
Posters and infographics
Lay out headlines, labels and simple diagrams in one pass. Treat the first result as a strong draft, then refine the wording and layout with a follow-up prompt. Always proofread facts and figures before you publish. Works for menus, flyers, covers and explainers.

Nano Banana 2.1 vs Other AI Image Generators

A fact-based look at the specs that matter when you pick an image model. Nano Banana 2.1 offers 4K output with up to 14 reference images. GPT Image 2.5 accepts up to 16 inputs per edit, and Midjourney V8.2 tops out at 2K HD.

Nano Banana 2.1GPT Image 2.5Midjourney V8.2
Version covered2.1 (Oct 2026)2.5 (Sep 2026)V8.2 (Jul 2026)
Maximum output resolution4K4K (3840×2160, experimental above 2560×1440)2K (2048px HD)
Reference images per requestUp to 14Up to 16 (edit API)Edit Model (limit not published)

Figures come from each provider's official documentation as of October 2026. Capabilities change often, so check each provider for current details. All product names are trademarks of their owners.

Prompt guide

How to Write Prompts for Nano Banana 2.1

Three habits that turn a lucky image into a repeatable result. Each one is quick to apply and saves credits.

Name the subject, setting, lighting, camera angle and mood in full sentences. Weak: "a coffee shop". Strong: "A cozy corner coffee shop at golden hour seen from a low table-level angle, steam rising from a ceramic cup in the foreground, flat graphic illustration with cobalt-blue shadows and warm orange sunlight, bold simple shapes." The more concrete the picture in your head, the less the model has to guess.

Say what the words are and where they go. Example: a poster with the headline "OPEN MIC NIGHT" in bold capitals at the top and a smaller line "Friday 8 PM" beneath it. Short headlines and labels work best, so keep paragraphs out of the image, and spell unusual names exactly as you want them.

Found something close? Upload that result as a reference and describe only the change: "same scene, but make the sky deep sunset orange". With several references, give each one a job, such as "image 1 is the character, image 2 is the location". You keep what worked and spend credits only on what changes.
Flat illustration of a coffee shop at golden hour created from a detailed creative-director style prompt
Poster with quoted headline text rendered clearly
Iterative edit of a generated image

Simple Credits. Every Resolution, Every Plan.

A 1K image costs 2 credits, 2K costs 3 and 4K costs 4. New accounts get 2 free credits for a first 1K preview, and every paid plan unlocks full-quality, watermark-free downloads, including 4K. Choose a one-time pack for occasional projects, or a monthly or yearly plan if you create every week.

Pay as you go

$2.99one-time

Perfect for starting out or occasional projects. Get a batch of credits and use them whenever you need.

What's included:

  • 20 Generation Credits (≈ 10 images at 1K)
  • All AI Image Tools incl. Nano Banana 2.1
  • High-Definition (HD) Downloads
  • Watermark-Free Exports
  • 24-Hour Cloud Storage
  • 100% Ad-Free Experience
人民币支付 👉
cnpay

One-time purchase, credits never expire.

Pro Monthly

Popular
$6.99month

Ideal for professionals and creators with regular monthly needs. Unlock faster generation and more credits.

What's included:

  • 60 Monthly Credits (≈ 30 images at 1K)
  • All AI Image Tools incl. Nano Banana 2.1
  • High-Definition (HD) Downloads
  • Watermark-Free Exports
  • Faster Image Generation
  • 30-Day Cloud Storage
  • Priority Customer Support
  • Access to Beta Features
  • Cancel Anytime
人民币支付 👉
cnpay

Billed $6.99 monthly. Renews automatically, cancel anytime.

Pro Yearly

$83.88$57.99year

The best value for power users and agencies. Get a massive credit allowance and save over 30%.

What's included:

  • 700 Annual Credits (≈ 350 images at 1K)
  • All AI Image Tools incl. Nano Banana 2.1
  • High-Definition (HD) Downloads
  • Watermark-Free Exports
  • Fastest Image Generation
  • Unlimited Cloud Storage
  • Priority Customer Support
  • Access to Beta Features
  • Cancel Anytime
人民币支付 👉
cnpay

Billed $57.99 yearly. Renews automatically, cancel anytime.

Nano Banana 2.1: Frequently Asked Questions

Nano Banana 2.1 is Google's image generation and editing model, released on October 6, 2026 as the successor to Nano Banana 2. It is built on Gemini 3.6 Flash and supports 1K, 2K and 4K output, up to 14 reference images and clearer text inside images. ColorChanger lets you use it in your browser without a Google AI plan.

Google offers Nano Banana 2.1 in the Gemini app with a Google AI plan, and the Gemini API has no free tier for it. Here, every new account gets 2 free credits, enough for one 1K image with a watermarked preview. Downloading the full-quality original needs any paid plan. Free previews are watermarked, so you can judge the result before you spend anything.

A 1K image costs 2 credits, a 2K image 3 credits and a 4K image 4 credits. Plans start at $2.99 for 20 credits, about 10 images at 1K. Pro Monthly gives 60 credits for $6.99 and Pro Yearly gives 700 credits for $57.99. If a generation fails, your credits are refunded automatically.

Yes. Upload up to 4 reference images in JPG, PNG or WebP and describe the change you want, such as a new background, outfit or lighting. The model itself supports up to 14 references, with up to 4 characters and 10 objects. Large photos are resized in your browser before upload, so uploads stay fast.

You can generate at 1K, 2K or 4K in auto, 1:1, 16:9, 9:16, 4:3, 3:4 and 21:9. 1K is ideal for drafts and social posts, 2K suits web pages and presentations, and 4K is best for print, ads and large displays. All three are open to every account.

In Google's own tests (Thinking mode, October 2026), Nano Banana 2.1 scores 1050 on overall preference against 990 for Nano Banana 2 and 935 for Nano Banana Pro. Its largest reported gains are in multi-character consistency, infographic design and multi-reference editing. These scores come from Google and have not been independently verified. The comparison table above shows every score side by side.

Yes, with sensible limits. ColorChanger does not claim ownership of the images you create, and full-quality downloads can be used in personal and commercial projects. You are responsible for the prompts and reference images you provide and for following applicable law and Google's usage policies. Free watermarked previews are for evaluation only, and AI-generated images may not qualify for copyright protection in every country.

If a generation fails or times out, the credits are returned to your account automatically, and you can try again with the same prompt. Your finished images are saved in My Creations. Failed attempts never cost you a credit.

No. ColorChanger is an independent service that provides access to Nano Banana 2.1 through a third-party API provider. Nano Banana and Gemini are trademarks of Google LLC.
Frequently asked questions about Nano Banana 2.1
logoFree preview

Try Nano Banana 2.1 Free, Pay Only for the Images You Keep

Free first preview
4K on every plan
Credits back if it fails
Try Nano Banana 2.1 Free

Nano Banana and Gemini are trademarks of Google LLC. ColorChanger is an independent service and is not affiliated with, endorsed by or sponsored by Google. Benchmark and pricing figures come from Google's documentation as of October 2026 and may change.