gemini-3.1-flash-lite-image

POST

https://api.key4u.vn/v1beta/models/gemini-3.1-flash-lite-image:generateContent

Official docs: https://ai.google.dev/gemini-api/docs/image-generation — Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite) text-to-image, image-to-image, video-to-image, and image editing.

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

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

Header Params

Body Params application/jsonRequired

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 'https://api.key4u.vn/v1beta/models/gemini-3.1-flash-lite-image:generateContent' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
  "contents": [
    {
      "parts": [
        {
          "text": "A cute cat sitting on a wooden table, watercolor style."
        }
      ],
      "role": "user"
    }
  ],
  "generationConfig": {
    "imageConfig": {
      "aspectRatio": "1:1"
    },
    "responseModalities": [
      "IMAGE"
    ]
  },
  "response_format": "url"
}'

Response Example

200 - example

{
  "candidates": [
    {
      "content": {
        "parts": [
          {
            "inlineData": {
              "data": "string",
              "mimeType": "string"
            },
            "thoughtSignature": "string"
          }
        ],
        "role": "string"
      },
      "finishReason": "string"
    }
  ],
  "createTime": "string",
  "modelVersion": "string",
  "responseId": "string",
  "usageMetadata": {
    "candidatesTokenCount": 0,
    "candidatesTokensDetails": [
      {
        "modality": "string",
        "tokenCount": 0
      }
    ],
    "promptTokenCount": 0,
    "promptTokensDetails": [
      {
        "modality": "string",
        "tokenCount": 0
      }
    ],
    "totalTokenCount": 0,
    "trafficType": "string"
  }
}

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

Embed

TTS text to speech