Force AI to use a specific output format

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Built by n8n Team n8n Team
Created on June 05, 2026

Description

This workflow is for anyone looking to automatically fetch, validate, and parse complex language-based queries into a structured format. Its unique capability lies in not only processing language but also fixing invalid outputs before structuring them.

Note that to use this template, you need to be on n8n version 1.19.4 or later.

Nodes Used (4)

Auto-fixing Output Parser
@n8n/n8n-nodes-langchain.outputParserAutofixing
Basic LLM Chain
@n8n/n8n-nodes-langchain.chainLlm
OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi
Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured