https://tube.grossholtz.net/videos/watch/baccd139-2866-4250-a4c1-b6674d84b3b5 #openai #langchain #langchainjs Langchain is an extremely popular framework for building production-ready AI-powered applications. In this video we will have a look at the basics of using Langchain with Javascript, including installation and creating our first chat model. ☕ Buy me a coffee: https://www.buymeacoffee.com/leonvanzyl 📑 Useful Links: Langchain JS docs: https://js.langchain.com/docs/get_started/introduction Source Code: https://github.com/leonvanzyl/langchain-js OpenAI: https://platform.openai.com 💬 Chat with Like-Minded Individuals on Discord: https://discord.gg/VwHZzbNawh 🧠 I can build your chatbots for you! https://www.cognaitiv.ai 🕒 TIMESTAMPS: 0:00 - Introduction 0:49 - Github Repo 1:10 - Prerequisites 1:23 - Creating the Project 2:16 - Instantiate Chat Model 2:58 - OpenAI API Key 3:36 - Invoking the Model 4:18 - Calling model 4:26 - Batch Method 4:58 - Stream Method 5:43 - StreamLog method 6:26 - Environment Variables 8:00 - ChatOpenAI Properties 9:16 - Outro Sun, 05 Apr 2026 18:17:34 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.grossholtz.net https://tube.grossholtz.net/client/assets/images/icons/icon-512x512.png https://tube.grossholtz.net/videos/watch/baccd139-2866-4250-a4c1-b6674d84b3b5 All rights reserved, unless otherwise specified in the terms specified at https://tube.grossholtz.net/about and potential licenses granted by each content's rightholder.