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LangChain / RAG / Vector DBs · Lesson

Prompts, LLMs, and Basic Chains

Master the art of prompt engineering, connect to various LLM providers, and create simple sequential chains for basic tasks.

Prompts, LLMs, & Chains

Welcome to this lesson! We'll explore the fundamental building blocks of LangChain: Prompts, Large Language Models (LLMs), and Chains.

These three components are at the heart of almost every application you'll build with LangChain, enabling powerful interactions with AI.

The Art of Prompt Engineering

A prompt is the input text you give to an LLM to guide its response. Crafting effective prompts is known as prompt engineering.

Good prompts are clear, concise, and provide enough context for the LLM to generate the desired output. They are crucial for getting useful results.

All lessons in this course

  1. Setting Up Your LangChain Environment
  2. Prompts, LLMs, and Basic Chains
  3. Output Parsers and Callbacks
  4. Memory and Conversational Context in LangChain
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