Nano Banana 2 API — Flash-Speed 4K Image Generation

Generate images with Nano Banana 2 (Gemini 3.1 Flash) through VicSee API. 4K resolution, 15 aspect ratios, web grounding, 5-character consistency. 10-30 credits per image.

Try it now: Use the Nano Banana 2 Generator to create images with Flash speed.

Pricing

Resolution	Credits	Price (Pro Yearly)	Price (Pro Monthly)
1K (1024px)	10	$0.060	$0.120
2K (2048px)	16	$0.096	$0.192
4K (4096px)	30	$0.180	$0.360

Credits are deducted only on successful generation.

Endpoint

POST https://vicsee.com/api/v1/generate

See Authentication for API key setup.

Text to Image

Generate images from text descriptions with Flash speed.

Request Parameters

Parameter	Type	Required	Description
model	string	Yes	`nano-banana-2-text-to-image`
input.prompt	string	Yes	Detailed description of the image (up to 20,000 characters)
input.resolution	string	No	`1K`, `2K`, or `4K` (default: `1K`)
input.aspect_ratio	string	No	See aspect ratios (default: `auto`)
input.output_format	string	No	`png` or `jpg` (default: `jpg`)
input.google_search	boolean	No	Enable web grounding for real-time accuracy (default: `false`)

Example Request

curl -X POST https://vicsee.com/api/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nano-banana-2-text-to-image",
    "input": {
      "prompt": "A majestic snow leopard resting on a Himalayan cliff at golden hour, photorealistic, 8K detail",
      "resolution": "4K",
      "aspect_ratio": "16:9",
      "output_format": "jpg"
    }
  }'

Image to Image

Edit or transform images using up to 14 reference images.

Request Parameters

Parameter	Type	Required	Description
model	string	Yes	`nano-banana-2-image-to-image`
input.prompt	string	Yes	Description of the transformation
input.image_urls	array	Yes	Array of reference image URLs (up to 14, max 30MB each)
input.resolution	string	No	`1K`, `2K`, or `4K` (default: `1K`)
input.aspect_ratio	string	No	Output aspect ratio (default: `auto`)
input.output_format	string	No	`png` or `jpg` (default: `jpg`)
input.google_search	boolean	No	Enable web grounding (default: `false`)

Example Request

curl -X POST https://vicsee.com/api/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nano-banana-2-image-to-image",
    "input": {
      "prompt": "Transform this photo into a Studio Ghibli anime style illustration",
      "image_urls": ["https://example.com/photo.jpg"],
      "resolution": "2K",
      "aspect_ratio": "1:1"
    }
  }'

Supported Aspect Ratios

Nano Banana 2 supports 15 aspect ratios:

Ratio	Type	Use Case
`auto`	Automatic	Model selects best ratio
`1:1`	Square	Social media, profile pictures
`16:9`	Widescreen	YouTube thumbnails, presentations
`9:16`	Vertical	Stories, Reels, TikTok
`4:3`	Standard	Blog images, traditional photos
`3:4`	Portrait	Portraits, product photos
`4:5`	Social	Instagram posts
`5:4`	Landscape	Desktop wallpapers
`2:3`	Portrait	Posters, book covers
`3:2`	Landscape	Photography, prints
`21:9`	Ultrawide	Cinematic banners
`4:1`	Banner	Website headers
`1:4`	Tall Banner	Sidebar ads
`8:1`	Panoramic	Panoramic scenes
`1:8`	Tall Panoramic	Vertical panoramas

Web Grounding

Set google_search: true to enable Google Web Search grounding. This helps generate accurate depictions of specific subjects, landmarks, trending topics, and current events.

curl -X POST https://vicsee.com/api/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nano-banana-2-text-to-image",
    "input": {
      "prompt": "The Eiffel Tower decorated for the 2024 Olympics",
      "resolution": "2K",
      "google_search": true
    }
  }'

Response

See Tasks for polling task status and retrieving results.

{
  "task_id": "abc123",
  "status": "pending"
}

Nano Banana 2

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