How to Build Virtual Try-On for Fashion Using Nano Banana Pro

Introduction

Virtual try-on AI is reshaping the way fashion e-commerce engages customers. By letting shoppers visualize products directly on themselves, brands reduce returns and improve conversions. Clothing websites can harness AI outfit try-on to offer an immersive shopping experience with minimal integration overhead.

prompt: In a 3x3 grid, show this character in different angles, keep the scene same, Random poses.

Understanding Virtual Try-On AI

Traditional static images lack interaction. Virtual try-on uses algorithms to map clothing product images onto human portraits, creating a realistic preview. This requires sophisticated image alignment, scaling, and blending, enabling customers to see outfits as if they were wearing them.

Nano Banana Pro Overview

Nano Banana offers two key models for image generation:

gemini-2.5-flash-image: Fast, efficient for basic try-on visuals.
gemini-3-pro-image-preview: Higher fidelity, designed for professional-grade try-on rendering.

Pricing Comparison:

Official Nano Banana rate: $0.039 USD/image.
Provided stable quality rate: $0.02 USD/image.
Nano Banana Pro official rate: $0.134 USD/image.
Provided Pro rate: $0.068 USD/image. This can halve costs for large-scale output without sacrificing quality.

Performance:

10-second base64 image generation.
High-volume stability.
Drop-in replacement for existing Nano Banana flows.

Step-by-Step Pipeline from Image to Wearable Portrait

Step 1: Input Preparation

Source clear, high-resolution images.
Maintain consistent lighting and angles.
Use neutral backgrounds for easier processing.

Step 2: Model Selection

Choose based on quality/time trade-off:

Standard: gemini-2.5-flash-image for quick cycles.
Pro: gemini-3-pro-image-preview for marketing-grade output.

Step 3: API Integration

Set authentication headers and build POST requests with either direct image URLs or base64-encoded content.

Step 4: Generating the Try-On Avatar

Transform base images into wearable portraits by overlaying product visuals onto customer photos. Control scaling and rotational alignment to fit naturally.

Step 5: Output Validation

Compare generated portraits with brand standards. Ensure fabric textures and colors remain true.

Step 6: Scale Testing

Run batch jobs to simulate peak usage. Track real response times and success rates.

Example API Calls

Nano Banana Image Generation

curl --location --request POST 'https://wisdom-gate.juheapi.com/v1/chat/completions' \
--header 'Authorization: YOUR_API_KEY' \
--header 'Content-Type: application/json' \
--header 'Accept: */*' \
--data-raw '{
  "model": "gemini-2.5-flash-image",
  "messages": [{"role": "user","content": [{"text": "generate a high-quality image.","type": "text"},
        {"image_url": {"url": "https://blog-images.juhedata.cloud/sample.jpeg"},"type": "image_url/base64"}]}],
  "stream": false
}'

Expected: 10-second turnaround for base64 image data.

Sora AI Video Generation for Fashion

Step 1: Create a clip

curl -X POST "https://wisdom-gate.juheapi.com/v1/videos" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: multipart/form-data" \
  -F model="sora-2" \
  -F prompt="Fashion runway with models wearing new collection" \
  -F seconds="15"

Step 2: Check progress

curl -X GET "https://wisdom-gate.juheapi.com/v1/videos/{task_id}" \
  -H "Authorization: Bearer YOUR_API_KEY"

Cost Benefits Analysis

For 1,000 images/month:

Nano Banana official: $39
Provided: $20 (save $19)

For Nano Banana Pro (1,000 images):

Official: $134
Provided: $68 (save $66)

Video generation:

Official: $1.20-$1.50 per video.
Provided: $0.12/video.

These savings scale significantly for brands with large image and video needs.

Deployment Tips

Use as direct replacement in existing API workflows.
Minimal code changes needed.
Test in staging before full rollout.

Troubleshooting

Common issues:

Authentication errors: Check API key.
Image format: Confirm correct MIME type or base64 encoding.
Latency spikes: Use batch execution off-peak.

Future Trends

Real-time streaming try-on in live shopping events.
Personalized AI recommendations using customer profile data.

Conclusion

Integrating Nano Banana Pro for virtual try-on gives fashion e-commerce sites fast, high-quality try-on previews at half the cost, improving engagement and reducing returns.