Gemini nodes

Tools for chat completions and image generation with Google Gemini.  These nodes are also served as MCP tools on the gemini MCP server. Back to the full node reference.

Gemini Chat

gemini_chat · 1 credit on Cloud

Generate a chat completion using Google Gemini.

Credential: Gemini (API key)

Parameters

Field	Type	Required	Description
model	enum	✓	Gemini model identifier to use for the chat completion. One of: gemini-3.6-flash, gemini-3.5-flash, gemini-3.5-flash-lite, gemini-3.1-pro-preview, gemini-3.1-flash-lite, gemini-3-flash-preview, gemini-2.5-pro, gemini-2.5-flash, gemini-2.5-flash-lite. Default: gemini-3.1-flash-lite.
prompt	string	✓	User prompt sent to the model.
temperature	number	✓	Sampling temperature controlling randomness of the response. Default: 1.

Output

Returns a list of records — reference fields downstream as $<node>.text.

Field	Type	Description
text	string	Text response generated by the model.

Gemini Nano Banana

gemini_nano_banana · 2 credits on Cloud

Generate an image from a text prompt using Google Gemini Nano Banana.

Credential: Gemini (API key)

Parameters

Field	Type	Required	Description
image	string		Optional reference image URL to guide generation.
model	enum	✓	Gemini image-generation model identifier. One of: gemini-3-pro-image, gemini-3.1-flash-image, gemini-3.1-flash-lite-image. Default: gemini-3.1-flash-image.
prompt	string	✓	Text prompt describing the image to generate.

Output

Returns a list of records — reference fields downstream as $<node>.image.

Field	Type	Description
image	string	URL of the generated image.