LangChain OpenTutorial
  • 🦜️🔗 The LangChain Open Tutorial for Everyone
  • 01-Basic
    • Getting Started on Windows
    • 02-Getting-Started-Mac
    • OpenAI API Key Generation and Testing Guide
    • LangSmith Tracking Setup
    • Using the OpenAI API (GPT-4o Multimodal)
    • Basic Example: Prompt+Model+OutputParser
    • LCEL Interface
    • Runnable
  • 02-Prompt
    • Prompt Template
    • Few-Shot Templates
    • LangChain Hub
    • Personal Prompts for LangChain
    • Prompt Caching
  • 03-OutputParser
    • PydanticOutputParser
    • PydanticOutputParser
    • CommaSeparatedListOutputParser
    • Structured Output Parser
    • JsonOutputParser
    • PandasDataFrameOutputParser
    • DatetimeOutputParser
    • EnumOutputParser
    • Output Fixing Parser
  • 04-Model
    • Using Various LLM Models
    • Chat Models
    • Caching
    • Caching VLLM
    • Model Serialization
    • Check Token Usage
    • Google Generative AI
    • Huggingface Endpoints
    • HuggingFace Local
    • HuggingFace Pipeline
    • ChatOllama
    • GPT4ALL
    • Video Q&A LLM (Gemini)
  • 05-Memory
    • ConversationBufferMemory
    • ConversationBufferWindowMemory
    • ConversationTokenBufferMemory
    • ConversationEntityMemory
    • ConversationKGMemory
    • ConversationSummaryMemory
    • VectorStoreRetrieverMemory
    • LCEL (Remembering Conversation History): Adding Memory
    • Memory Using SQLite
    • Conversation With History
  • 06-DocumentLoader
    • Document & Document Loader
    • PDF Loader
    • WebBaseLoader
    • CSV Loader
    • Excel File Loading in LangChain
    • Microsoft Word(doc, docx) With Langchain
    • Microsoft PowerPoint
    • TXT Loader
    • JSON
    • Arxiv Loader
    • UpstageDocumentParseLoader
    • LlamaParse
    • HWP (Hangeul) Loader
  • 07-TextSplitter
    • Character Text Splitter
    • 02. RecursiveCharacterTextSplitter
    • Text Splitting Methods in NLP
    • TokenTextSplitter
    • SemanticChunker
    • Split code with Langchain
    • MarkdownHeaderTextSplitter
    • RecursiveJsonSplitter
  • 08-Embedding
    • OpenAI Embeddings
    • CacheBackedEmbeddings
    • HuggingFace Embeddings
    • Upstage
    • Ollama Embeddings With Langchain
    • LlamaCpp Embeddings With Langchain
    • GPT4ALL
    • Multimodal Embeddings With Langchain
  • 09-VectorStore
    • Pinecone
    • Pinecone
    • Vector Stores
    • Chroma-Multimodal
    • Chroma
    • Chroma With Langchain
    • Pinecone-Multimodal.ipynb
    • Pinecone
    • Qdrant
    • Elasticsearch
    • MongoDB Atlas
    • PGVector
    • Neo4j Vector Index
    • Weaviate
  • 10-Retriever
    • VectorStore-backed Retriever
    • Contextual Compression Retriever
    • Ensemble Retriever
    • Long Context Reorder
    • Parent Document Retriever
    • MultiQueryRetriever
    • MultiVectorRetriever
    • Self-querying
    • TimeWeightedVectorStoreRetriever
    • TimeWeightedVectorStoreRetriever
    • Kiwi BM25 Retriever
    • Ensemble Retriever with Convex Combination (CC)
  • 11-Reranker
    • Cross Encoder Reranker
    • JinaReranker
    • FlashRank Reranker
  • 12-RAG
    • Understanding the basic structure of RAG
    • RAG Basic WebBaseLoader
    • Exploring RAG in LangChain
    • Exploring RAG in LangChain
    • RAPTOR: Recursive Abstractive Processing for Tree-Organized Retrieval
    • Conversation-With-History
    • Translation
    • Multi Modal RAG
  • 13-LangChain-Expression-Language
    • RunnablePassthrough
    • Inspect Runnables
    • RunnableLambda
    • Routing
    • Runnable Parallel
    • Configure-Runtime-Chain-Components
    • Configure
    • Creating Runnable objects with chain decorator
    • RunnableWithMessageHistory
    • Generator
    • Binding
    • Fallbacks
    • RunnableRetry
    • WithListeners
    • How to stream runnables
  • 14-Chains
    • Summarization
    • SQL
    • Structured Output Chain
    • StructuredDataChat
  • 15-Agent
    • Tools
    • Bind Tools
    • Tool Calling Agent
    • Tool Calling Agent with More LLM Models
    • Iteration-human-in-the-loop
    • Agentic RAG
    • CSV/Excel Analysis Agent
    • Agent-with-Toolkits-File-Management
    • Make Report Using RAG, Web searching, Image generation Agent
    • TwoAgentDebateWithTools
    • React Agent
  • 16-Evaluations
    • Generate synthetic test dataset (with RAGAS)
    • Evaluation using RAGAS
    • HF-Upload
    • LangSmith-Dataset
    • LLM-as-Judge
    • Embedding-based Evaluator(embedding_distance)
    • LangSmith Custom LLM Evaluation
    • Heuristic Evaluation
    • Compare experiment evaluations
    • Summary Evaluators
    • Groundedness Evaluation
    • Pairwise Evaluation
    • LangSmith Repeat Evaluation
    • LangSmith Online Evaluation
    • LangFuse Online Evaluation
  • 17-LangGraph
    • 01-Core-Features
      • Understanding Common Python Syntax Used in LangGraph
      • Building a Basic Chatbot with LangGraph
      • Building an Agent with LangGraph
      • Agent with Memory
      • LangGraph Streaming Outputs
      • Human-in-the-loop
      • LangGraph Manual State Update
      • Asking Humans for Help: Customizing State in LangGraph
      • DeleteMessages
      • DeleteMessages
      • LangGraph ToolNode
      • LangGraph ToolNode
      • Branch Creation for Parallel Node Execution
      • Conversation Summaries with LangGraph
      • Conversation Summaries with LangGraph
      • LangGrpah Subgraph
      • How to transform the input and output of a subgraph
      • LangGraph Streaming Mode
      • Errors
      • A Long-Term Memory Agent
    • 02-Structures
      • LangGraph-Building-Graphs
      • Naive RAG
      • Add Groundedness Check
      • Adding a Web Search Module
      • LangGraph-Add-Query-Rewrite
      • Agentic RAG
      • Adaptive RAG
      • Multi-Agent Structures (1)
      • Multi Agent Structures (2)
    • 03-Use-Cases
      • LangGraph Agent Simulation
      • Meta Prompt Generator based on User Requirements
      • CRAG: Corrective RAG
      • Plan-and-Execute
      • Plan-and-Execute
      • Multi Agent Collaboration Network
      • Multi Agent Collaboration Network
      • Multi-Agent Supervisor
      • 08-LangGraph-Hierarchical-Multi-Agent-Teams
      • 08-Hierarchical-Multi-Agent-Teams
      • SQL-Agent
      • 10-LangGraph-Research-Assistant
      • LangGraph Code Assistant
      • Deploy on LangGraph Cloud
      • Tree of Thoughts (ToT)
      • Ollama Deep Researcher (Deepseek-R1)
      • Functional API
      • Reflection in LangGraph
  • 19-Cookbook
    • 01-SQL
      • TextToSQL
      • SpeechToSQL
    • 02-RecommendationSystem
      • ResumeRecommendationReview
    • 03-GraphDB
      • Movie QA System with Graph Database
      • 05-TitanicQASystem
      • Real-Time GraphRAG QA
    • 04-GraphRAG
      • Academic Search System
      • Academic QA System with GraphRAG
    • 05-AIMemoryManagementSystem
      • ConversationMemoryManagementSystem
    • 06-Multimodal
      • Multimodal RAG
      • Shopping QnA
    • 07-Agent
      • 14-MoARAG
      • 15-CoT-basedSmartWebSearch
      • 16-MultiAgentShoppingMallSystem
      • Agent-Based Dynamic Slot Filling
      • Code Debugging System
      • New Employee Onboarding Chatbot
      • 20-LangGraphStudio-MultiAgent
      • Multi-Agent Scheduler System
    • 08-Serving
      • FastAPI Serving
      • Sending Requests to Remote Graph Server
      • Building a Agent API with LangServe: Integrating Currency Exchange and Trip Planning
    • 08-SyntheticDataset
      • Synthetic Dataset Generation using RAG
    • 09-Monitoring
      • Langfuse Selfhosting
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