Use Nano Banana 2 through Rivya Public API v1 with model id nano-banana-2, supported inputs, parameters, Files API rules, credits, and response examples.

Available via APIText or URL ready; reference modes use Files APIImage

API model id

nano-banana-2

Inputs

text, file

Files API

Required for reference modes

Base credits

Capability

Image

Billing

FIXED

Prompt limit

20000 characters

Request contract

Send the model id at the top level. Model-specific controls belong in params.

Key	Type	Required	Default	Description
model	string	Yes	nano-banana-2	Use the nano-banana-2 API model id.
prompt	string	Yes	-	Maximum 20000 characters for this model.
params	object	No	-	Model-specific parameter object. Use the rows below for allowed keys.
client_request_id	string	No	-	Optional client-side id for tracing requests in your system.

Model parameters

Key	Type	Required	Default	Range	Options	Description
aspect_ratio	select	No	auto	-	auto, 1:1, 16:9, 9:16, 3:2, 2:3, 4:3, 3:4, 5:4, 4:5, 21:9, 4:1, 1:4, 8:1, 1:8	Aspect ratio
resolution	select	No	1K	-	1K, 2K, 4K	Resolution
output_format	select	No	jpg	-	jpg, png	Output format
google_search	select	No	false	-	false, true	Google Search

Upload policy

Upload reference files first, then place the returned URL and duration token inside params.referenceMediaItems.

Reference rule

Reference image: Upload up to 14 image files for image projects.

Max files

Accepted file kinds

image

Duration token

Video and audio references should carry durationToken from /api/v1/files when duration verification is required.

kind	Max size	MIME types
image	30 MB	image/jpeg, image/png, image/webp

Minimal request

{
  "model": "nano-banana-2",
  "prompt": "A clean editorial product image on a soft studio background",
  "params": {
    "aspect_ratio": "auto",
    "resolution": "1K",
    "output_format": "jpg",
    "google_search": "false"
  }
}

Reference-file request

{
  "model": "nano-banana-2",
  "prompt": "A clean editorial product image on a soft studio background",
  "params": {
    "aspect_ratio": "auto",
    "resolution": "1K",
    "output_format": "jpg",
    "google_search": "false",
    "referenceMediaItems": [
      {
        "url": "https://cdn.example.com/reference-image.png",
        "kind": "image",
        "name": "reference-image.png",
        "mimeType": "image/png"
      }
    ]
  }
}

Create response

The create endpoint returns a public task id. Poll the status endpoint until the task succeeds or fails.

{
  "id": "task_nano_banana_2_example",
  "status": "queued",
  "model": "nano-banana-2",
  "reserved_credits": 5,
  "final_credits": 0,
  "created_at": "2026-05-11T00:00:00.000Z",
  "updated_at": "2026-05-11T00:00:00.000Z",
  "result": null,
  "error": null
}

Common errors

validation_failed, insufficient_credits, idempotency_conflict, rate_limited, not_found

Some modes require Files API reference uploads.

Nano Banana 2 API Integration