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Google · Model API

Nano Banana 2 Lite API

Nano Banana 2 Lite API with VezAPI. Explore model capabilities, credit pricing, request parameters, and integration examples.

Text to ImageImage to ImageImage Editing

Nano Banana 2 Lite API documentation

Integrate Nano Banana 2 Lite with your VezAPI key. The operations below share the same authentication and account balance.

Base URL: https://api.vezapi.com
Send Authorization: Bearer YOUR_VEZAPI_KEY. Use a unique Idempotency-Key for each submission; reuse it only when checking the same request.

Google - Nano Banana 2 Lite

POST/api/v1/jobs/createTask

Model IDs: nano-banana-2-lite

ParameterTypeDescription & constraints
model
required		string

The model name used for generation. This field is required. This endpoint must use the `nano-banana-2-lite` model.

Values: "nano-banana-2-lite"

Default: "nano-banana-2-lite"

callBackUrl
optional		string

Callback URL for task completion notifications. Optional parameter. If provided, the system will send a POST request to this URL when the task completes, whether it succeeds or fails. If omitted, no callback notification will be sent. To ensure callback security, see [Webhook Verification Guide](/common-api/webhook-verification).

input
required		object

Input parameters for the image generation task.

input.image_urls
optional		array

Input image URL array. Optional parameter. Set to an empty array or omit it for pure text-to-image generation. Supports up to 10 images. - Please provide uploaded file URLs, not raw file content - Accepted types: `image/jpeg`, `image/png`, `image/webp` - Max size: 30.0MB

Default: []

maxItems: 10

input.prompt
required		string

Text prompt used to generate the image. Required. Maximum length: 20000 characters.

maxLength: 20000

input.aspect_ratio
required		string

Required. Aspect ratio of the output image. Use "auto" to let the model decide.

Values: "1:1", "1:4", "1:8", "2:3", "3:2", "3:4", "4:1", "4:3", "4:5", "5:4", "8:1", "9:16", "16:9", "21:9", "auto"

Request example
curl -X POST 'https://api.vezapi.com/api/v1/jobs/createTask' \
  -H 'Authorization: Bearer YOUR_VEZAPI_KEY' \
  -H 'Idempotency-Key: your-unique-request-id' \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "nano-banana-2-lite",
  "input": {
    "prompt": "Generate a pig on the grass, cinematic light",
    "aspect_ratio": "auto"
  }
}'
Responses and errors

HTTP 200

Request successful

ParameterTypeDescription & constraints
code
optional		integer

Status code of the request. The HTTP status is 200 even when the request fails, so always check this field: 200 means success; any other value means the request failed and msg describes the reason. Common values: 401 invalid or missing API key; 402 insufficient credits; 429 rate limit exceeded; 422 or 500 the request could not be processed (read msg and check your parameters before retrying).

Values: 200, 401, 402, 404, 422, 429, 433, 455, 500, 501, 505

msg
optional		string

Response message, error description upon failure

data
required		object
data.taskId
required		string

The task ID can be used with the "Get Task Details" endpoint to query the task status.

Task status and callbacks

For asynchronous tasks, keep the returned taskId. Query GET /api/v1/jobs/recordInfo?taskId=... or provide callBackUrl when creating the task. Only the account that created a task can access it or derive new resources from it.

A timeout can mean the submission was accepted. Inspect the existing request in your dashboard; do not create another task automatically. Callback delivery is retried and may arrive more than once. Deduplicate with X-VezAPI-Event-Id.

Files, logs and billing

Generated media normally follows a 14-day provider lifetime; uploaded files expire after 24 hours. Save the files you need before expiration. VezAPI streams registered files without keeping a permanent media library. Request logs are retained for two calendar months.

Credits are reserved before submission. Final deductions match actual discounted consumption one for one. Unknown usage pauses new paid requests. If available funds cannot cover final usage while protecting other reservations, settlement stays pending until funded; model usage cannot make the wallet negative. Time-based inputs require server-side metadata reads; a failed read prevents submission.

Open full documentation →

Nano Banana 2 Lite API pricing

Rates below are reference estimates; final deductions equal actual discounted consumption, one for one. At the standard pack rate, 1,000 credits ≈ $10. Larger packs reduce the effective credit price.

SpecificationCreditsUnitUSD reference
nano-banana-2-lite, 1k4per image$0.04