@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 
Process email invoices with OCR, GPT-4, Slack, QuickBooks and Google Sheets
Overview This workflow automates invoice processing directly from your email inbox. It captures invoice attachments,...
Monitor deal risk from HubSpot and Gmail with GPT-4.1 mini and Slack alerts
Overview This workflow helps sales teams automatically monitor deal health and detect risks early. It pulls deal data...
Process invoices and send weekly AI reports with OpenAI and Gmail
Overview This workflow automates invoice handling from upload to reporting using AI. Users submit invoices through a...
Send AI job application auto-replies with Gmail, OpenAI GPT-4o and SMTP
This workflow automatically replies to job applications received via email using AI. It monitors a Gmail inbox for in...
Convert YouTube videos into SEO blog posts using WayinVideo and GPT-4o-mini
Description Automatically convert any video URL into a fully structured, publish ready SEO blog post using WayinVideo...
Send AI website audits with GPT-4.1 and Gmail as a lead magnet
How it works A prospect submits a form with their email and website URL The workflow fetches and cleans the website H...
Generate Upwork SEO proposals with GPT-4, DeepSeek, Claude and Google Docs
Description Automatically analyze Upwork SEO job posts, detect hidden screening questions, generate personalized cove...
Generate product photos and videos from a reference image with OpenAI and RunwayML
What This Workflow Does A user submits a form with an existing product photo, a name, a vision prompt, and their emai...
AI YouTube Shorts Creator 🤖🎞️: Prompt-Based Clipping, Dubbing & Social Upload
This workflow automates the process of creating short video clips from a YouTube video based on specific content requ...
Qualify and manage voice sales calls with Claude, GPT-4o, Gemini, and GoHighLevel
How it works Fully automates your inbound and outbound voice sales pipeline — from live call qualification to CRM pip...
Flag duplicate and risky AP invoices with Gmail, OpenAI and Supabase
How it works Monitors your AP inbox for incoming invoices, extracts structured data with AI, runs duplicate and vendo...
Handle GDPR access and erasure emails with Gmail, GPT-4o, Supabase and Airtable
How it works Handles GDPR Article 15 (access) and Article 17 (erasure) requests end to end — from inbound email to le...
Predict Shopify stockouts with GPT-4o and email suppliers via Gmail
How it works Runs daily at 06:00 UTC, pulls every Shopify product variant's stock level, calculates real sales veloci...
Generate real-estate marketing images and videos with OpenAI and Google Drive
Automated Real Estate Content Generation Workflow This n8n workflow automates turning short user ideas into productio...
Analyze GitLab CI job failures with GPT-5.3 and send reports to Slack
Overview This workflow helps automatically analyze the causes of build failures in Gitlab CI and propose solutions wi...
Generate AI-powered investment due diligence PDF reports with OpenAI, LlamaParse and Decodo
Transform raw investment memorandums and financial decks into comprehensive, professional Due Diligence (DD) PDF repo...
Process emailed PDF invoices into QuickBooks bills with OpenAI
AI Invoice Processor for QuickBooks Email to Bill with PDF Attachment Automatically processes vendor invoices receive...
Repurpose long-form content into Instagram and LinkedIn posts with OpenAI and Teams
Who is this for Content creators, solopreneurs, and marketing teams who produce long form content (podcasts, newslett...
Generate job descriptions from briefing notes with OpenAI and Google Docs
Auto generate job descriptions from briefing notes with OpenAI and Google Docs Who is this for Recruiters, HR teams,...
Create and publish AI carousel posts from Telegram to Instagram, Facebook and TikTok with OpenAI, APITemplate.io and Blotato
Who is this for Content creators, social media managers, and solopreneurs who want to automate carousel post creation...
Automate job applications with Telegram, SerpAPI, and OpenAI
Who is this for? This workflow is for job seekers who want to automate their entire application pipeline — from disco...
Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o
How it works 1. Courier sends an invoice photo to WhatsApp → AI extracts all details via Google Vision OCR 2. Courier...
Query your PostgreSQL data in plain English with GPT-4o-mini
AI SQL Analytics Agent Chat With Any PostgreSQL Database Using Natural Language This template turns your PostgreSQL d...
Analyze logs and correlate incidents with OpenAI and Slack
Overview This workflow implements an AI powered incident investigation and root cause analysis system that automatica...