Iterative content refinement with GPT-4 multi-agent feedback system
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 12 nodes and runs manually, when you click “Execute workflow”. Along the way it connects OpenAI Chat Model.
How it runs
Trigger: Manually, when you click “Execute workflow”.
- AI Agent: runs an AI agent, with model: OpenAI Chat Model
- Loop Over Items (Loop Over Items (Split in Batches)): loops over the items in batches
- Edit Fields (Edit Fields (Set)): sets 3 fields: ideas, turn, done
- If: checks a condition and branches into true / false
- Critic Agent (AI Agent): runs an AI agent, with model: OpenAI Chat Model
- Refiner Agent (AI Agent): runs an AI agent, with model: OpenAI Chat Model
- Evaluation agent (AI Agent): runs an AI agent, with model: OpenAI Chat Model; output parser: Structured Output Parser
- Code: runs custom JavaScript code
- Edit Fields (Edit Fields (Set)): sets 3 fields: output, turn, done
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (8)
- AI Agent
@n8n/n8n-nodes-langchain.agent - Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - If
n8n-nodes-base.if - Edit Fields (Set)
n8n-nodes-base.set - Code
n8n-nodes-base.code - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Manual Trigger
n8n-nodes-base.manualTrigger
From the author
Who's it for This workflow is designed for users who want to implement iterative AI-powered content improvement processes. It's ideal for content creators, marketers, product managers, and anyone who needs to refine ideas through multiple rounds of critique…