← Back to Models

google/nano-banana

Google's Nano Banana (Gemini 2.5 Flash Image) text-to-image model that generates images from text descriptions.

image text-to-image

Pricing

Base: 4 credits per image

Adjustments:

Example Pricing:

Base request: 5 credits

Range: 4 - 4 credits

Input Parameters

Prompt required string

The text prompt to generate an image from

Number of Images integer

The number of images to generate

Default: 1

Aspect Ratio string

The aspect ratio of the generated image

Default: 16:9

Options: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16

Output Format string

The format of the generated image

Default: png

Options: jpeg, png, webp

Directives

Advanced Keys:

Hidden Keys:

output_format

Raw JSON

{
    "identifier": "google/nano-banana",
    "fal_endpoint": "fal-ai/nano-banana",
    "type": "image",
    "category": "text-to-image",
    "description": "Google's Nano Banana (Gemini 2.5 Flash Image) text-to-image model that generates images from text descriptions.",
    "pricing": {
        "version": 1,
        "base": {
            "unit": "image",
            "credits": 4
        },
        "adjustments": [],
        "display": {
            "min_credits": 4,
            "max_credits": 4
        }
    },
    "directives": {
        "advancedKeys": [],
        "hiddenKeys": [
            "output_format"
        ],
        "inputTransforms": []
    },
    "fal": {
        "input_transforms": [
            {
                "type": "set_default",
                "key": "output_format",
                "value": "png"
            }
        ]
    },
    "inputSchema": {
        "type": "object",
        "title": "Input",
        "required": [
            "prompt"
        ],
        "properties": {
            "prompt": {
                "type": "string",
                "title": "Prompt",
                "x-order": 0,
                "description": "The text prompt to generate an image from"
            },
            "num_images": {
                "type": "integer",
                "title": "Number of Images",
                "default": 1,
                "minimum": 1,
                "x-order": 1,
                "description": "The number of images to generate"
            },
            "aspect_ratio": {
                "enum": [
                    "21:9",
                    "16:9",
                    "3:2",
                    "4:3",
                    "5:4",
                    "1:1",
                    "4:5",
                    "3:4",
                    "2:3",
                    "9:16"
                ],
                "type": "string",
                "title": "Aspect Ratio",
                "description": "The aspect ratio of the generated image",
                "default": "16:9",
                "x-order": 2
            },
            "output_format": {
                "enum": [
                    "jpeg",
                    "png",
                    "webp"
                ],
                "type": "string",
                "title": "Output Format",
                "description": "The format of the generated image",
                "default": "png",
                "x-order": 3
            }
        }
    },
    "outputSchema": {
        "type": "array",
        "title": "Output",
        "description": "Array of output objects. Each object contains url, object_key, content_type, etc.",
        "items": {
            "type": "object",
            "properties": {
                "url": {
                    "type": "string",
                    "format": "uri"
                },
                "object_key": {
                    "type": "string"
                },
                "content_type": {
                    "type": "string"
                }
            }
        }
    }
}