The Auto-fixing Output Parser node wraps another output parser. If the first one fails, it calls out to another LLM to fix any errors.
Parameter resolution in sub-nodes
Sub-nodes behave differently to other nodes when processing multiple items using an expression.
Most nodes, including root nodes, take any number of items as input, process these items, and output the results. You can use expressions to refer to input items, and the node resolves the expression for each item in turn. For example, given an input of five name values, the expression {{ $json.name }} resolves to each name in turn.
In sub-nodes, the expression always resolves to the first item. For example, given an input of five name values, the expression {{ $json.name }} always resolves to the first name.
Browse Auto-fixing Output Parser node documentation integration templates or search all templates
Refer to LangChain's output parser documentation for more information about the service.
View n8n's Advanced AI documentation.
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