@n8n/n8n-nodes-langchain.lmchatopenai
2,488 workflows using this node.
What is the @n8n/n8n-nodes-langchain.lmchatopenai node used for in n8n workflows?
@n8n/n8n-nodes-langchain.lmchatopenai n8n workflows are automation templates that use the @n8n/n8n-nodes-langchain.lmchatopenai node as part of a reusable workflow. Builders use these templates to inspect how the node connects with triggers, data transformation steps, app integrations, notifications, storage, or AI-powered actions inside n8n. Each workflow listing includes a title, summary, author attribution, categories, complexity level, source links when available, and a downloadable JSON file for review before import. Use this page to compare practical examples, understand the surrounding nodes, and choose a template that can be safely tested and adapted in your own n8n workspace.
n8n-n8n-nodes-langchain-lmchatopenai 
Audit SaaS subscription waste from Gmail with GPT-4.1-mini and Google Sheets
Quick overview This workflow runs on a schedule to scan Gmail for subscription and billing emails, uses OpenAI GPT 4....
Generate AI governance policy PDFs with OpenAI, SerpAPI, Gotenberg and SharePoint
Quick overview This workflow receives an intake form webhook, validates and enriches firm details, uses OpenAI and Se...
Qualify and book AI sales calls with GPT-4o-mini and LeadConnector CRM
Quick Overview This workflow receives inbound lead messages from HighLevel (LeadConnector), pulls prior conversation...
Send weekly GitHub digests to Telegram with Qwen via OpenRouter
Quick overview This workflow runs weekly or on demand via Telegram commands (/report, /issues, /prs, /status) to fetc...
Answer HR questions with GPT-4o-mini, PostgreSQL, Pinecone and ElevenLabs
This template provides a fully functional, enterprise grade HR chatbot that employees can interact with using plain l...
Provide ecommerce support with Qdrant RAG, WooCommerce, and human backup
This workflow is a complete AI powered customer support automation for WooCommerce e commerce websites . It combines...
Reconcile Google Drive invoice PDFs with OpenAI, Sheets, Slack and Gmail
How it works Watches a Google Drive folder and triggers automatically when a new invoice PDF is uploaded Extracts raw...
Invoice Reconciliation Automation
How it works Watches a Google Drive folder and triggers automatically when a new invoice PDF is uploaded Extracts raw...
Triage customer support tickets from Gmail and forms with OpenAI, Slack and Sheets
How it works Listens for new support requests from Gmail and a web form simultaneously, normalizing both into a singl...
Investigate CI/CD incidents in Slack with a GPT-5.5 AI agent
Overview It is a sub workflow that investigates CI/CD failures reported by engineers in Slack. It is invoked by a par...
Classify and route DevOps support messages with Slack and GPT-5.5
Overview Receives messages to technical support and classifies them. Requirements 1. OpenRouter/OpenAI/Anthropic API...
Generate SEO blog drafts from Google Sheets to WordPress with OpenAI
Description Generate SEO friendly WordPress blog drafts from a Google Sheets queue using OpenAI . This workflow write...
Generate weekly Instagram Reels ideas from Google News with OpenAI and Notion
This n8n workflow automatically generates weekly Instagram Reel content ideas for a D2C brand using fresh Google News...
Analyze YouTube comments with OpenAI and send reports via email and chat
Who it's for This advanced n8n workflow is designed for YouTube content creators , social media managers , digital ma...
Classify Gmail emails with OpenAI and Telegram feedback
An AI powered Gmail assistant built with n8n that automatically labels emails, learns from your decisions, and safely...
Manage Gmail and Google Calendar with a multi-agent executive assistant (GPT-4o)
This workflow turns n8n into a smart, conversational personal assistant. Think of it as a digital manager for your da...
Create LinkedIn carousel PDFs with GPT-4o-mini and Google Drive
Description Submit your carousel topic, brand name, target audience, tone, and number of content slides via a simple...
Summarize webpage content with OpenAI GPT-5-mini and 24h caching
This workflow summarizes the content of a webpage from a provided URL. It can optionally target a specific part of th...
Triage GitHub issues to a Notion board with Qwen via OpenRouter
WHAT IT DOES When a new issue is opened on a GitHub repository, this workflow uses an AI model to classify it by type...
Send a daily AI news digest using Google News, GPT-4o-mini, Sheets and Gmail
Description Add your news topics to a Google Sheet once — with keywords, article limits, and an Active toggle — and e...
Generate podcast show notes and timestamps with WayinVideo and GPT-4o-mini
Description Submit any podcast episode recording URL along with the episode number, podcast name, host name, episode...
Sync Stripe payments to GoHighLevel with GPT-4o email, Slack, and Sheets logging
Who It's For Agencies, service businesses, and GoHighLevel users who want to automatically update their CRM, notify t...
Send GPT-4o follow-up emails to leads and detect replies with Gmail
Who It's For Sales teams, agencies, and service businesses that follow up with inbound leads via email and want to au...
Extract and log Outlook invoices to OneDrive Excel with GPT-4.1-mini
Invoice Processor – Microsoft 365 Automatically extract, log, and archive invoices from your Outlook inbox using GPT...