Gemini Structured Output

Force Gemini to return data in a specific JSON format. Define your output structure using a JSON Schema — the model guarantees its response matches it exactly.

The Gemini Structured Output node uses Google's Gemini models to return data that follows a schema you define, rather than free-form text. Describe the fields you expect and the node produces clean, structured JSON ready to use in your flow.

Gemini Structured Output

System MessageText

ContextText

Prompt*Text (multiline)

File UrlFile upload

Json Schema*JSON

ModelSelect

outputJSON

Fields marked * are required. Dots are connection handles.

Inputs

Each input can be typed in directly or connected to another node's output.

Input	Type	Required	Description
System Message	Text	Optional	Override the default system instructions for the LLM (e.g. 'You are a concise assistant that responds only in bullet points.').
Context	Text	Optional	Dynamic data for the LLM to process (e.g. email body, document, user input).
Prompt	Text (multiline)	Required	Task instruction for the LLM (e.g. 'Extract the name and date from the text').
File Url	File upload	Optional	Provide files or images for the LLM to analyze.
Json Schema	JSON	Required	JSON Schema defining the exact structure of the output. The model will always return valid JSON matching this schema.

Settings

Setting	Type	Default	Description
Model	Select	Gemini 3.1 Pro Preview

Model options

Option	Default
Gemini 2.5 Flash Preview
Gemini 2.5 Pro Preview
Gemini 3.1 Pro Preview	✓
Gemini 3 Flash Preview

Output

Type: JSON (json)