If you want to swap faces between two images quickly and seamlessly, NanoBanana Pro is one of the easiest tools to use. With just a few clicks, you can upload two portraits, provide a prompt, and generate a realistic face swap in minutes. Here’s a detailed step-by-step guide to get you started.
Quick answer: Use two clear portraits, tell the model which image supplies the face and which image supplies the scene, then ask it to preserve expression, lighting, pose, and background. Only use faces you have permission to edit, and never use a face swap to impersonate, deceive, defraud, or embarrass someone.
The Google official Nano Banana Pro service is currently very congested — especially for free users, who are limited to only three generations at lower resolution.
Google says image-generation limits can change and reset over time, so check the current Gemini Apps limits before relying on a fixed daily quota.
If you don’t want to pay for the expensive official plans — you can try GlobalGPT instead. As an all-in-one AI platform, it fully integrates Nano Banana Pro with no usage limits, all at around 30% of the official price. Besides Nano Banana Pro, you can also use MJ, ChatGPT Image, and more than 20 other models to generate images.
On the video side, GlobalGPT also provides image-to-video tools alongside its Nano Banana Pro image workflow. Keep the routes separate: Google’s official access is through supported Gemini products and Google AI Studio, while the GlobalGPT route used in this tutorial is the Nano Banana Pro image generator.
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What Is Nano Banana Pro?
Nano Banana Pro — also called Gemini 3 Pro Image or Nano Banana 2 — is Google DeepMind’s cutting-edge AI model for imaNano Banana Pro is Google’s Gemini 3 Pro Image model, introduced on November 20, 2025. It is not the same model as Nano Banana 2, which Google introduced later as Gemini 3.1 Flash Image. Google’s Nano Banana Pro announcement describes the Pro model’s advanced image generation and editing, while the official Gemini image-generation documentation identifies Nano Banana 2 as the newer, speed-focused model.
- High-resolution output: Generate images up to 4K with stunning detail and vibrant color.
- Advanced text rendering: Produce clear, elegant text in multiple languages.
- Data-driven accuracy: Leverage Google Search grounding for infographics and fact-based visuals.
- Multi-image composition: Combine up to 14 images while preserving the identity of up to 5 people.
- Creative controls: Fine-tune lighting, focus, camera angles, and apply style transfers effortlessly.
More than just an AI art generator, Nano Banana Pro acts as a creative director, transforming your ideas into professional-quality visuals.
For the wider model family and the difference between generations, see the Nano Banana 2 vs Nano Banana Pro comparison.rator, Nano Banana Pro acts as a creative director, transforming your ideas into professional-quality visuals.
Official Google vs GlobalGPT Access
| Route | Where you use it | What to check |
|---|---|---|
| Official Google route | Gemini products or Google AI Studio | Current plan, region, quota, resolution, and model label |
| GlobalGPT prompt-edit route | GlobalGPT Nano Banana Pro image generator | Current model selector, credits/plan terms, and export options |
| GlobalGPT dedicated swap route | GlobalGPT Face Swap | Upload the original image and the face reference requested by the live tool; review the result before use |
If you need more route detail before starting, compare the four tested Nano Banana access methods.
Step 1: Access the NanoBanana Tool
To begin using NanoBanana Pro, navigate to the tool page. Once there, you’ll see a clean interface designed for simplicity, making it easy even for beginners to perform face swaps without prior editing experience.
Step 2: Upload Two Portrait Images
Click the upload button to select two images you want to swap faces between. Ensure that both images are clear, well-lit, and face-forward for the best results. The AI works best with high-resolution portraits where faces are unobstructed.
If you prefer a dedicated workflow, open GlobalGPT Face Swap, upload the original portrait and the face reference requested by the tool, then use its Swap action. If you want finer prompt control over lighting, expression, pose, and background, stay with the Nano Banana Pro route used in the steps below.
For a more complex edit with two source photos, the same source-versus-target logic appears in this Nano Banana two-photo blending workflow.
Step 3: Write a Prompt for FaceSwap
After uploading your images, you need to write a prompt describing how you want the face swap to appear. This could be as simple as “swap faces between the two photos” or include style instructions like “make it realistic and seamless.” Clear prompts help the AI generate better results.
A reliable prompt names the source image, target image, details to preserve, and details allowed to change. The Nano Banana Pro prompt guide gives more reusable prompt structures.
Prompt example：
“Replace the face in the first uploaded image with the face from the second uploaded image. Preserve the original expression, lighting, and background of the first image, and ensure the swapped face looks natural and realistic.”
Step 4: Click the Generate Button
Once your images are uploaded and your prompt is ready, simply click the Generate button. NanoBanana’s AI will process your images and create a new photo with the swapped faces. This process usually takes only a few seconds to a minute, depending on image quality and size.
If the interface rejects a large batch or the model loses identity across references, check the Nano Banana Pro image-upload limits before retrying.
Step 5: Download and Use Your FaceSwap Image
After generation, preview your swapped image. If satisfied, download it to your device. You can now use the face-swapped image for social media, memes, videos, or creative projects. NanoBanana ensures the final result looks natural and polished.
Before publishing or monetizing the result, review the practical boundaries in the Nano Banana Pro commercial-use guide and make sure you own or have permission to use the source material.
Example of FaceSwap Using NanoBanana
Use NanoBanana to replace Jinx’s face with the model’s face
prompt：Make the person in Image 1 cosplay the character from Image 2, matching the outfit, makeup, and props exactly like Image 2.
For more character-transfer ideas, the Nano Banana cosplay workflow shows how to specify clothing, makeup, props, and identity details.
Use NanoBanana to make the girl’s smile more natural.
prompt：“Make her smile and pose more naturally.”
Tips for the Best NanoBanana FaceSwap Results
- Use high-quality photos with clear facial features.
- Avoid extreme angles or occlusions like sunglasses or hats.
- Be specific in your prompt to get realistic outcomes.
- Experiment with different prompts for fun and creative results.
When a face is partly hidden, treat the output as an AI reconstruction rather than recovered truth. The mask-removal prompt workflow explains that limitation in a closely related editing task.
Beyond face swapping, there are many insane ways of using nano banana waiting for you to try
Consent, Portrait Rights, Privacy, and Safe Use
- Get clear consent from the person whose face you use, especially for public, commercial, intimate, political, or reputation-sensitive content.
- Do not upload private portraits you are not allowed to share. Review the service’s data controls before submitting sensitive images; Google provides a Gemini Apps Privacy Hub for its official route.
- Do not present a face swap as a real event, use it to impersonate someone, or use it for fraud, harassment, non-consensual sexual content, or identity deception. Google’s Generative AI Prohibited Use Policy describes prohibited harmful and deceptive uses.
- Label the image as AI-edited when a reasonable viewer could mistake it for a real photograph.
Using NanoBanana for FaceSwap is simple, efficient, and fun. By following these steps, you can create professional-quality face swaps without any advanced editing skills. Start experimenting today at https://www.glbgpt.com/home/nano-banana and see how AI can transform your images instantly.
Here are more tips on 5 ways to use NanoBanana for free and how to use NanoBanana without paying.
Which GlobalGPT route should you choose? Pick GlobalGPT Face Swap for the most direct face-replacement workflow. Pick Nano Banana Pro when you need broader image editing through natural-language prompts. Neither route removes the need for consent, portrait rights, privacy checks, and honest disclosure.
Nano Banana Face Swap FAQ
Is Nano Banana Pro the same as Nano Banana 2?
No. Nano Banana Pro is Google’s Gemini 3 Pro Image model. Nano Banana 2 is the later Gemini 3.1 Flash Image model. Check the model label in the interface before starting.
Can I use Nano Banana Pro for a face swap on GlobalGPT?
Yes. You can use GlobalGPT’s Nano Banana Pro route for prompt-based image editing, or its dedicated Face Swap route for a more direct replacement workflow. Both are separate from Google’s official access.
What images work best for a face swap?
Use clear, well-lit, face-forward portraits with similar angles and minimal obstruction. Tell the model which image supplies the face and which image supplies the pose, lighting, and background.
How many images can I upload?
The practical requirement for this workflow is two portraits. Platform and model input limits can change, so check the live interface and current documentation before using larger reference sets.
Can I face-swap someone without permission?
Do not use another person’s face without appropriate consent and rights. Never use a face swap for impersonation, fraud, harassment, non-consensual sexual content, or misleading claims about real events.
Are uploaded portraits private?
Privacy depends on the route and account settings. Avoid sensitive images unless you have permission, review the service’s current data controls, and remove unnecessary personal information before uploading.
Why does the swapped face look unnatural?
Mismatched angles, weak lighting, occlusion, low resolution, or an ambiguous prompt are common causes. Use clearer portraits and explicitly preserve expression, skin tone, lighting, pose, and background.
