Build your first AI agent with ChatGPT-5
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 9 nodes and runs when a chat message arrives. Along the way it connects OpenAI Chat Model, Google Sheets, Google Calendar and Gmail.
How it runs
Trigger: When a chat message arrives.
- AI Agent: runs an AI agent, with model: OpenAI GPT-5 Model; 5 tools (Knowledgebase Lookup, Send Booking Confirmation, Reasoning Tool (LangChain), Calendar: Check Availability…); memory: Memory
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)
- Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - Think Tool
@n8n/n8n-nodes-langchain.toolThink - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Google Sheets Tool
n8n-nodes-base.googleSheetsTool - Google Calendar Tool
n8n-nodes-base.googleCalendarTool - Gmail Tool
n8n-nodes-base.gmailTool - AI Agent
@n8n/n8n-nodes-langchain.agent - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow
From the author
Build Your First AI Agent with ChatGPT-5 Who is this for? This workflow is designed for beginners and professionals who want to build their first AI-powered assistant with n8n. It’s perfect for anyone managing online trainings, consultations, or services that…