#4 LangChain Explained | Build Your First QnA Chatbot using LangChain & OpenAI

Description

Learn LangChain from scratch and build your first AI Chatbot with OpenAI & LangChain. What We Will Cover: - What is LangChain and why it's essential for GenAI apps - LangChain Components: Models, Agents, Memory, Tools, Retrievers - Setup LangChain with OpenAI - Handle environment variables with python-dotenv - Build your first Q&A Chatbot with LangChain + OpenAI - Use different LLM models (GPT-4, GPT-4o-mini) ⏱️ TIMESTAMPS: 0:00 - Introduction 0:19 - Why LangChain is Important 7:47 - Models Component Deep Dive 9:00 - What is Tool Component 10:07 - What is AI Agents. 11:41 - Memory Component 12:40 - Document Processing, Vector Stores, Retrievers 16:17 - Install LangChain & Other Dependencies 19:17 - Load Environment Variables 20:57 - Create First LangChain Object 23:40 - Build Q&A Chatbot with OpenAI 27:35 - Next Steps & Conclusion IMPORTANT RESOURCES: 📂 GitHub Repository: https://github.com/techsimpluslearning/Complete-GenAI-Course-Python-Langchain 💬 Discord Community: https://discord.gg/Y5gASsas9j Telegram Group: https://t.me/+ZILeEp0hvjVmNmE9 📝 LangChain Documentation: https://docs.langchain.com/oss/python/langchain/overview If you have any questions or doubts, feel free to reach out to me. 📞 Schedule 1-to-1 Call: https://topmate.io/techsimplus_learnings ✅ LIKE | 💬 COMMENT | 📤 SHARE | 🔔 SUBSCRIBE 🔎 RELATED KEYWORDS: langchain tutorial, langchain python, what is langchain, langchain openai, build ai chatbot, langchain tutorial for beginners, langchain vs llamaindex, langchain agents, langchain memory, langchain rag, openai api tutorial, generative ai tutorial, langchain installation, langchain setup, ai chatbot python, langchain course, learn langchain, langchain components, langchain models, langchain tools, agentic ai, ai agents tutorial, chatgpt api tutorial, llm integration, langchain jupyter notebook, langchain dotenv #generativeai #langchain #python #ai #machinelearning #aiprojects #langgraph #rag #aiagents #openai #gemini #awsbedrock #fastapi #modelcontextprotocol #streamlit #aitutorial #learnai #coding #programming #indianyoutuber #hinditutorial #techeducation #aicourses #portfolio #careergrowth #vectordatabases #aideployment #2026 #deeplearning #nlp #chatgpt #gemini #genai #techsimplus