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POST
Gemini 3 Pro Image Editing
Gemini 3 Pro Image (Nano Banana Pro) is designed to solve the most challenging image generation tasks by integrating state-of-the-art reasoning capabilities. It is the best model for handling complex and multi-turn image generation and editing, with higher accuracy and better image quality. It supports images encoded as URLs and Base64 as input.

Request Headers

string
required
Enum value: application/json
string
required
Bearer authentication format: Bearer {{API Key}}.

Request Body

string
default:"1K"
Pixel size of the output image. 1K (1024px), 2K (2048px), 4K (4096px). Defaults to 1KOptional values: 1K, 2K, 4K
object
Google Search options
string
required
Text prompt describing the desired image editing effect
string[]
List of input image URLs for editing
string
Aspect ratio of the output imageOptional values: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
string[]
List of Base64-encoded images for editing

Response Information

string[]
required
List of edited image URLs
object
Model grounding metadata. Returned when Google server-side tools (such as Search) are called. Note: tool invocation depends on Google. Enabling the parameter does not guarantee that a tool call will be triggered 100% of the time.