Google

This page is auto-generated from model configurations. Last updated: 2026-08-18.

This reference lists all available Google image generation models and their parameters. Use these parameter names when calling the Generation API.

• Gemini 3.0 Pro
• Gemini 3.1 Flash (Nano Banana 2)
• Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite)

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Gemini 3.0 Pro

Nano Banana Pro (a.k.a Nano Banana 2) is Google’s new state-of-the-art image generation and editing model

Model ID: model_google-gemini-pro-image-editing

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_google-gemini-pro-image-editing/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
referenceImages	file_array	No	-	-	-	-	Reference images for style or content guidance
prompt	string	Yes	-	-	-	-	Text prompt for image editing
aspectRatio	string	No	auto	-	-	21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, auto	Aspect ratio for the generated image
resolution	string	No	2K	-	-	1K, 2K, 4K	Resolution for the generated image
useGoogleSearch	boolean	No	false	-	-	-	Use Google Search to find more information about the prompt
numOutputs	number	No	1	1	4	-	Number of images to generate

Gemini 3.1 Flash (Nano Banana 2)

Nano Banana 2 combines Pro capabilities with Flash-tier speed — edit and generate images using multimodal understanding, up to 14 reference images or an input video (not both), and natural language instructions for context-aware edits that preserve composition, lighting, and style coherence.

Model ID: model_google-gemini-3-1-flash

Capabilities: txt2img, img2img, video2img

LLM Markdown: https://app.scenario.com/api/models/model_google-gemini-3-1-flash/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Text prompt for image generation/editing
referenceImages	file_array	No	-	-	-	-	Reference images for style or content guidance (up to 14). Mutually exclusive with input video — use reference images or a video, not both.
video	file	No	-	-	-	-	Optional input video for video to image generation (e.g. a thumbnail from a clip). Mutually exclusive with reference images. Max ~15 MB inline.
videoFps	number	No	1	0.1	24	-	Frame sampling rate for the input video in (0, 24] fps. Lower values sample fewer frames. Defaults to 1.0 fps when unset. Only applies when a video is provided.
aspectRatio	string	No	auto	-	-	21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, auto	Aspect ratio for the generated image
resolution	string	No	1K	-	-	512, 1K, 2K, 4K	Resolution for the generated image
useGoogleSearch	boolean	No	false	-	-	-	Use Google Search to find more information about the prompt
thinkingLevel	string	No	HIGH	-	-	MINIMAL, LOW, MEDIUM, HIGH	Thinking level for the generated image
numOutputs	number	No	1	1	4	-	Number of images to generate

Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite)

Nano Banana 2 Lite is Google’s fastest and most affordable image generation and editing model — 1K output only, with multimodal understanding and natural language instructions for context-aware edits.

Model ID: model_google-gemini-3-1-flash-lite-image

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_google-gemini-3-1-flash-lite-image/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Describe the image you want to create, or how to edit your reference images. Plain, natural language works well.
referenceImages	file_array	No	-	-	-	-	Images to guide the style or content, or to edit (up to 14).
aspectRatio	string	No	auto	-	-	21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, auto	The shape of the image. Auto picks a fitting shape for you.
thinkingLevel	string	No	HIGH	-	-	MINIMAL, HIGH	How much reasoning effort the model puts into the image. High gives the best results; Minimal is fastest.
numOutputs	number	No	1	1	4	-	How many images to create from the same prompt.