Imagen generates images

POST

https://api.key4u.vn/v1beta/models/imagen-4.0-ultra-generate-001:predict

Official documentation: https://ai.google.dev/gemini-api/docs/document-processing?hl=zh-cn

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Query Params

Header Params

Body Params application/json

Examples

Responses

🟢200

application/json

Bodyapplication/json

🟠400Bad request or validation failed

🟠401Missing or invalid API Key

Request Example

Shell

JavaScript

Java

Swift

curl --location --globoff 'https://api.key4u.vn/v1beta/models/imagen-4.0-ultra-generate-001:predict?key={{YOUR_API_KEY}}' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
  "instances": [
    {
      "prompt": "Robot holding a red skateboard"
    }
  ],
  "parameters": {
    "sampleCount": 4
  }
}'

Response Example

200 - example

{
  "id": "resp_example",
  "object": "response",
  "status": "completed"
}

Modified at 2026-10-13 12:32:40

TTS text to speech

Image Generation for gemini-nano-banana-2.1