LangChain / LangGraph
LangChain 与 LangGraph 框架:链式编排、LCEL、状态图 Agent、LangSmith 可观测的端到端实战。
LangChain / LangGraph
LangChain 与 LangGraph 框架:链式编排、LCEL、状态图 Agent、LangSmith 可观测的端到端实战。
本主题共 96 篇教程
LangGraph Tutorial: Build Stateful AI Agents with Persistent Memory
Build complex multi-step AI workflows with state management using LangGraph
高级Build a Production RAG System with LlamaIndex and Pinecone
Step-by-step guide to retrieval-augmented generation that works on real data
高级CrewAI vs AutoGen vs LangGraph: Multi-Agent Framework 2026
Build production multi-agent systems with the right framework
高级LangChain vs LlamaIndex vs Haystack: RAG Framework 2026
Choose the right RAG framework for production LLM applications
高级Python AI Development Stack 2026: FastAPI + LangChain + Supabase
Build production-ready AI applications with the modern Python AI stack
高级LlamaIndex Tutorial 2026: Build Production RAG Applications
Connect LLMs to your documents with LlamaIndex ingestion pipelines and query engines
高级LangGraph Complete Guide 2026: Build Stateful AI Agents
Build agents with cycles, memory, human-in-the-loop using LangGraph
进阶CrewAI Tutorial 2026: Build Multi-Agent Systems That Work Together
Create coordinated AI agent teams with CrewAI to tackle complex tasks—research, analysis, content creation—that single agents cannot handle alone
进阶LangChain vs LlamaIndex 2026: Which Framework Should You Use for RAG?
An honest technical comparison of LangChain and LlamaIndex for building RAG applications, with benchmarks, use cases, and migration guide
进阶LangChain vs LlamaIndex: Which Framework to Choose in 2025?
In-depth comparison of the two leading LLM frameworks
入门RAG Architecture Cheat Sheet
RAG pipeline components, patterns, and configuration reference
进阶AI Observability: Tracing and Monitoring LLM Applications
Debug, optimize, and monitor production AI systems
高级AI Agent Memory Systems: Short-Term and Long-Term Memory
Build AI agents that remember and learn from interactions
高级Building Production RAG Systems with LangChain: From Prototype to 99.9% Uptime
Engineering teams share battle-tested patterns for reliable retrieval-augmented generation in production
入门LangChain Quick Reference
LangChain LCEL patterns, chains, and agents cheat sheet
高级Building Research Assistant Agent with AI Agents: Complete Guide 2026
Create autonomous search the web and synthesize research on any topic using LLM agents
高级Corrective RAG: Implementation Guide with Weaviate 2026
Build a self-correcting retrieval with quality assessment RAG system from scratch
进阶Chunking Strategies: Advanced RAG Tutorial
Optimal text chunking strategies for different document types
进阶LangSmith vs Helicone vs Langfuse: Side-by-Side Comparison
LLM observability platform comparison — comparing monitoring across langsmith and langfuse
高级Multi-Tool Agent Pipeline: Complete Tutorial
Chaining multiple tools in a sequential agent workflow
高级Building Code Review Agent with AI Agents: Complete Guide 2026
Create autonomous automatically review pull requests for bugs and quality using LLM agents
进阶AI Summarization Pipeline
Summarizing long documents efficiently with map-reduce — hands-on project tutorial
高级Building Financial Analysis Agent with AI Agents: Complete Guide 2026
Create autonomous analyze financial data and generate investment reports using LLM agents
高级Multi-Vector RAG: Implementation Guide with Weaviate 2026
Build a storing multiple embedding types per document RAG system from scratch
进阶Parent Document Retrieval: Advanced RAG Tutorial
Hierarchical chunking with parent-child document strategy
进阶Multi-Query Retrieval: Advanced RAG Tutorial
Generating multiple queries for comprehensive RAG retrieval
进阶RAG (Retrieval Augmented Generation): Complete Developer Guide 2026
Master RAG (Retrieval Augmented Generation) with practical examples and production patterns
高级Building Bug Fix Agent with AI Agents: Complete Guide 2026
Create autonomous identify and fix bugs in codebases autonomously using LLM agents
进阶LangChain Expression Language (LCEL): Tutorial and Best Practices
Build production AI with LangChain — composable chain building
进阶RAG Fusion: Advanced RAG Tutorial
Combining results from multiple retrieval strategies
进阶LangGraph for Stateful Agents: Tutorial and Best Practices
Build production AI with LangGraph — stateful agent graphs with cycles
高级RAPTOR RAG: Implementation Guide with Pinecone 2026
Build a hierarchical document summarization for better context RAG system from scratch
高级Multi-Agent Systems with CrewAI: Complete Developer Guide 2026
Master Multi-Agent Systems with CrewAI with practical examples and production patterns
进阶n8n + LangChain: How to Build AI workflows in n8n (2026)
Complete integration guide for n8n and LangChain
高级Building SQL Query Agent with AI Agents: Complete Guide 2026
Create autonomous translate natural language to SQL and execute queries using LLM agents
高级Hybrid Search RAG: Implementation Guide with Elasticsearch 2026
Build a combining vector and keyword search for maximum recall RAG system from scratch
入门LangChain Project Scaffold: Starter Guide
Opinionated LangChain project structure for teams
高级Building DevOps Automation Agent with AI Agents: Complete Guide 2026
Create autonomous monitor systems and automate infrastructure tasks using LLM agents
高级Building Email Triage Agent with AI Agents: Complete Guide 2026
Create autonomous read, categorize, and draft email responses using LLM agents
进阶Django + LangChain: How to Add AI to Django web apps (2026)
Complete integration guide for Django and LangChain
高级Building Content Writer Agent with AI Agents: Complete Guide 2026
Create autonomous research and write high-quality content at scale using LLM agents
进阶LangChain vs LlamaIndex: Side-by-Side Comparison
Framework comparison for building RAG applications — comparing developer experience across langchain and llama-index
高级Contextual Compression RAG: Implementation Guide with Pinecone 2026
Build a compressing retrieved context to fit LLM window RAG system from scratch
高级Self-Query RAG: Implementation Guide with Qdrant 2026
Build a AI-generated metadata filters for precise retrieval RAG system from scratch
进阶LangSmith LLM Observability: Complete Setup Guide
Debugging and monitoring LLM chains with LangSmith
高级Building Customer Support Agent with AI Agents: Complete Guide 2026
Create autonomous handle customer inquiries using your knowledge base using LLM agents
进阶Adaptive RAG: Advanced RAG Tutorial
Dynamic routing between different retrieval strategies
高级AI Agent Architecture: Complete Developer Guide 2026
Master AI Agent Architecture with practical examples and production patterns
高级Graph RAG: Implementation Guide with Neo4j 2026
Build a knowledge graph traversal for multi-hop reasoning RAG system from scratch
进阶Autonomous Research Agent
Building agents that autonomously search and synthesize — hands-on project tutorial
进阶RAG System Design Guide
Step-by-step RAG system design for architecture interviews
高级Memory-Augmented AI Agent: Complete Tutorial
Implementing short and long-term memory for AI agents
进阶LangChain vs LlamaIndex Comparison: Complete Developer Guide 2026
Master LangChain vs LlamaIndex Comparison with practical examples and production patterns
高级Parent Document RAG: Implementation Guide with Chroma 2026
Build a retrieving small chunks with large parent context RAG system from scratch
进阶MCP with LangGraph Agents: Complete Guide
Using MCP tools in LangGraph agent workflows
高级Self-Healing Agent: Complete Tutorial
Agent that detects and recovers from its own errors
高级Building Data Analysis Agent with AI Agents: Complete Guide 2026
Create autonomous analyze datasets and generate insights autonomously using LLM agents
高级Time-Aware RAG: Implementation Guide with Pinecone 2026
Build a weighting recent documents higher in retrieval RAG system from scratch
入门LangChain vs LlamaIndex: Which is Better for RAG applications? (2026)
Detailed comparison of LangChain and LlamaIndex for RAG applications
入门LangSmith Complete Tutorial 2026: How to debug, test, and monitor LLM applications
Step-by-step guide to using LangSmith for AI-powered devops workflows
进阶Conversational AI with Memory
Implementing persistent memory in chatbots — hands-on project tutorial
入门LangSmith vs Langfuse: Which is Better for LLM observability? (2026)
Detailed comparison of LangSmith and Langfuse for LLM observability
高级Planning and Execution Agent: Complete Tutorial
Agent with high-level planning and step-by-step execution
进阶Build an Document Q&A with LangChain + Pinecone: Step-by-Step Tutorial 2026
Create a production-ready enterprise knowledge base from scratch
高级Cross-Encoder RAG: Implementation Guide with Qdrant 2026
Build a neural reranking for high-precision retrieval RAG system from scratch
进阶Corrective RAG (CRAG): Advanced RAG Tutorial
Self-correcting RAG with web search fallback
高级Hierarchical Agent System: Complete Tutorial
Multi-level agent hierarchy with delegation and reporting
进阶LangChain ReAct Agent from Scratch
Building a ReAct agent with tools using LangChain — hands-on project tutorial
入门OpenAI Assistants vs LangGraph: Which is Better for building AI agents? (2026)
Detailed comparison of OpenAI Assistants and LangGraph for building AI agents
高级Research Agent with Citations: Complete Tutorial
Autonomous research agent that cites sources accurately
进阶RAG vs Fine-tuning: Side-by-Side Comparison
When to use retrieval augmentation vs fine-tuning — comparing accuracy and cost across openai and langchain
高级LangChain vs LangGraph 实战指南:Agent 框架如何选,一篇讲清楚
从实际项目需求出发,告诉你该用哪个框架
高级AI Agent Frameworks: LangChain, AutoGen & CrewAI for Production in 2025
Build reliable AI agents that use tools, plan multi-step tasks, and collaborate in teams
进阶LlamaIndex 实战指南:RAG 应用开发从入门到生产
LlamaIndex vs LangChain 怎么选?5个真实场景代码示例
高级用 LangGraph 构建多步骤 Agent
状态机思维:让 Agent 像工作流一样可控
进阶LlamaIndex vs LangChain:到底该用哪个搭 RAG(2026 实战对比)
两个都用过半年后,我把选型逻辑讲清楚:什么项目用 LlamaIndex,什么项目用 LangChain
进阶LangSmith vs Langfuse:LLM 可观测性工具怎么选(2026)
一个闭源好用、一个开源能自托管,关键看你在不在乎数据出境和成本
进阶Vercel AI SDK vs LangChain:前端做 AI 应用该用哪个(2026)
一个为前端流式 UI 而生,一个是全能编排框架——其实很多项目两个都要
高级LangChain vs LangGraph 2026深度对比:何时用哪个框架?
从线性链到有状态图:理解两者的设计哲学和适用边界
高级LangGraph 状态机 Agent 2026:构建可控的复杂 AI 工作流
超越简单Chain,用图结构实现真正可调试、可维护的AI流程
进阶AI Agent Frameworks Compared: LangChain vs LlamaIndex vs AutoGen vs CrewAI
Which AI agent framework should you choose for production applications in 2025?
入门LlamaIndex RAG Template: Starter Guide
Production LlamaIndex RAG project with evaluation
高级LangChain LCEL: Advanced Patterns for Production AI Applications
Master LangChain Expression Language for composable, streaming AI pipelines
进阶LangSmith Tracing: Developer Guide and Quick Start 2026
Learn LangSmith Tracing: debug and trace LangChain applications
入门Vercel AI SDK vs LangChain.js: Which is Better for Next.js AI apps? (2026)
Detailed comparison of Vercel AI SDK and LangChain.js for Next.js AI apps
进阶Node.js + LangChain.js: How to Build Node.js AI applications (2026)
Complete integration guide for Node.js and LangChain.js
入门Flowise Complete Tutorial 2026: How to create LangChain flows with drag-and-drop UI
Step-by-step guide to using Flowise for AI-powered platform workflows
高级LangChain LCEL生产指南:构建可靠、可观测的LLM应用链
从原型到生产,掌握LangChain Expression Language的高级用法
入门Quick Tip: Connect any AI to your database with LangChain
Practical guide to connect any ai to your database with langchain
进阶CrewAI vs AutoGen vs LangGraph: Side-by-Side Comparison
Multi-agent framework comparison — comparing agent patterns across crewai and autogen
进阶LlamaIndex Data Ingestion: Tutorial and Best Practices
Build production AI with LlamaIndex — document pipelines and query engines
入门AI Recipe: Load and query a PDF with LlamaIndex
Step-by-step implementation: load and query a pdf with llamaindex
进阶Build a Production RAG Application with LlamaIndex and Qdrant
Document ingestion, hybrid search, reranking, and evaluation with LlamaIndex
进阶LangSmith for LLM Evaluation: Building Systematic Feedback Loops
Trace collection, evaluation datasets, A/B testing, and regression detection
高级LangChain in Production: Best Practices, Pitfalls, and Performance Optimization
Lessons from deploying LangChain applications handling millions of requests
进阶Build an AI Knowledge Graph with Neo4j + LangChain: Step-by-Step Tutorial 2026
Create a production-ready semantic knowledge base from scratch