@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 
Build a support knowledge base from historical Gmail emails with OpenAI and PostgreSQL
KB Builder ā Historical Emails n8n Workflow Template Description This workflow automates the process of building a st...
Generate LinkedIn and Twitter posts from Telegram voice replies with GPT-5 and Google Sheets
Created by Gurey AI Generate LinkedIn & Twitter Posts from Telegram Voice Replies with GPT 5 staying consistent with...
Generate a Google Ads keyword plan from seed keywords with Keyword Planner and OpenAI
Who is this template for? This workflow is built for digital marketers, SEO/PPC specialists, and business owners who...
Classify LinkedIn posts as quality or slop with OpenAI and Qdrant
Purpose This workflow is the official backend for the StopSlopIn Chrome extension ā it classifies LinkedIn posts as q...
Automate vehicle insurance claim approvals with OpenAI, OCR and PDF API Hub
This workflow automates the full lifecycle of a vehicle insurance claim ā from an incoming Gmail email to a signed, w...
Generate YouTube scripts and full SEO package with GPT-4o-mini and Gmail
Description Submit your video topic, target audience, video length, and tone of voice using a simple form and two seq...
Filter AI slop from your LinkedIn feed (backend for StopSlopIn Chrome extension)
Purpose This workflow is the official backend for the StopSlopIn Chrome extension ā it classifies LinkedIn posts as q...
AI-powered system for Creating & Executing your own Claude Skills š¤¹ with GitHub
This workflow implements an advanced AI powered system for generating, and executing Claude Skills stored on GitHub ....
Generate multi-agent AI research reports with OpenAI and Google Sheets
This workflow deploys multiple independent AI research agents that work in parallel, critique each other's findings,...
Analyze UX heuristics from UI screenshots with GPT-4 Vision and Google Sheets
This workflow evaluates website or app screenshots against established UX best practices (Nielsen's 10 Heuristics, WC...
Match brands with influencers using GPTā4.1, Google Sheets and SendGrid
This workflow automatically matches brands with high converting influencers by analyzing audience insights, engagemen...
Predict churn risk and trigger retention actions with OpenAI and Google Sheets
This workflow automatically ingests real time user behavior events, detects drop off points across the customer journ...
Create daily Facebook posts from Google Sheets with GPT-4o-mini and Ideogram
Description Set up your keyword schedule once in a Google Sheet and the workflow publishes daily Facebook posts autom...
Post top Reddit content to Telegram with GPT-4.1-mini and human approval
How it works A weekly cron triggers the flow The Reddit node fetches top posts from a separated list of subreddits yo...
Analyze YouTube videos with GPT-4o-mini and get relevance-ranked insights
Description Submit up to 3 YouTube video URLs using a simple form and the workflow handles everything automatically....
Generate AI YouTube comments and replies from a video URL using GPT-4 and Google Sheets
How it works A form trigger accepts any YouTube URL: youtube.com/watch?v=ID, youtu.be/ID, youtube.com/embed/ID, or ju...
Generate and rank landing page headlines with GPT-4o-mini, Google Sheets and Gmail
Description Submit your landing page URL, current headline, conversion goal, and target audience using a simple form...
Generate AI-powered pro vs con debates with GPT-4o and Google Sheets tracking
This workflow automatically processes incoming debate topic requests, generates structured, evidence backed Pro vs Co...
Generate and schedule LinkedIn, X, and Instagram posts with OpenAI agents
This workflow orchestrates three specialized AI agents in sequence to research trends, generate platform specific con...
Generate addictive ASMR Veo 3 reels
How it works 1. Generate new idea ā Pulls previously used objects from Google Sheet, then uses GPT 4.1 mini to genera...
Send an AIācurated weekly sports newsletter with Reddit, GPTā4o-mini, Gemini and Outlook
Sports Digest ā AI Curated Weekly Newsletter Automatically aggregates sports news for a configurable topic (e.g., "Un...
Monitor AI quality drift with GPT-4o-mini evaluations and Slack alerts
Catch AI quality drift before your users do. This template ties scheduled evaluation, LLM as a Judge scoring, and thr...
Score customer support AI responses with GPTā4 judge metrics
Score open ended AI responses with a judge model. This template shows how to evaluate a customer support agent using...
Evaluate a support ticket classifier with OpenAI GPT-4o-mini and n8n evaluations
Measure how well your AI classifier actually performs. This template shows how to evaluate a support ticket classifie...