GeminiNode - ComfyUI Built-in Node Documentation

Complete documentation for the GeminiNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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This node allows users to interact with Google’s Gemini AI models to generate text responses. You can provide multiple types of inputs including text, images, audio, video, and files as context for the model to generate more relevant and meaningful responses. The node handles all API communication and response parsing automatically.

Inputs

Parameter	Data Type	Required	Range	Description
prompt	STRING	Yes	-	Text inputs to the model, used to generate a response. You can include detailed instructions, questions, or context for the model. Default: empty string.
model	COMBO	Yes	gemini-2.0-flash-exp gemini-2.0-flash-thinking-exp gemini-2.5-pro-exp gemini-2.0-flash gemini-2.0-flash-thinking gemini-2.5-pro gemini-2.0-flash-lite gemini-1.5-flash gemini-1.5-flash-8b gemini-1.5-pro gemini-1.0-pro	The Gemini model to use for generating responses. Default: gemini-2.5-pro.
seed	INT	Yes	0 to 18446744073709551615	When seed is fixed to a specific value, the model makes a best effort to provide the same response for repeated requests. Deterministic output isn’t guaranteed. Also, changing the model or parameter settings, such as the temperature, can cause variations in the response even when you use the same seed value. By default, a random seed value is used. Default: 42.
images	IMAGE	No	-	Optional image(s) to use as context for the model. To include multiple images, you can use the Batch Images node. Default: None.
audio	AUDIO	No	-	Optional audio to use as context for the model. Default: None.
video	VIDEO	No	-	Optional video to use as context for the model. Default: None.
files	GEMINI_INPUT_FILES	No	-	Optional file(s) to use as context for the model. Accepts inputs from the Gemini Generate Content Input Files node. Default: None.

Outputs

Output Name	Data Type	Description
STRING	STRING	The text response generated by the Gemini model.