Nano Banana Pro

[Core Function] Nano Banana Pro (Gemini 3 Pro Image) is a high-capability creative image model. [Strengths] It balances the creative flexibility and speed of the Nano series with higher fidelity output. [Best For] Highly recommended for: high-quality stylized art and complex creative compositions. [Limitations] Do NOT use this model when you need the absolute highest photorealism or detail; step up within the Nano Banana family (Nano Banana 2 or Nano Banana Pro Edit workflows) as needed. [Routing] Use this model for high-quality, creative, non-photorealistic requests.

POST /google/nano-banana-pro

cURL

basic

curl --request POST \
  --url https://api.modellix.ai/api/v1/google/nano-banana-pro \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "Portrait of a warrior in ancient armor, photorealistic"
}
'

200

{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-def456",
    "model_id": "google/nano-banana-pro",
    "get_result": {
      "method": "GET",
      "url": "https://api.modellix.ai/api/v1/tasks/task-def456"
    }
  }
}

Authorizations

Authorization · string · header · required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json

prompt · string · required

Image description text

Minimum string length: 1

Example:

"Portrait of a warrior in ancient armor, photorealistic"

aspectRatio · enum<string> · default: 1:1

Image aspect ratio

Available options: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9

Example:

"16:9"

imageSize · enum<string>

Output image resolution

Available options: 1K, 2K, 4K

Example:

"2K"

Response

200

application/json

Task submitted successfully

code · integer · required

Response code, 0 indicates success

Example:

0

message · string · required

Response message

Example:

"success"

data · object · required

Detailed data about the submitted asynchronous task.

Show child attributes