LangChain vs LlamaIndex. Choosing the Right AI Framework
LangChain fits orchestration work such as prompt chains, tool use and agent architectures, while LlamaIndex fits connecting LLMs to your data through indexing, retrieval and RAG. Many AI products use both: LlamaIndex for data and LangChain for orchestration. The technical comparison of LangChain vs LlamaIndex below explains when to use each and how to combine them.
Technical comparison of LangChain vs LlamaIndex for AI products. When to use each and how to combine them.
What You Need to Know
LangChain is a general-purpose framework excelling at chaining prompts, tool use, and agent architectures.
LlamaIndex specializes in connecting LLMs to your data: indexing, retrieval, and RAG applications.
In practice, many AI products use both: LlamaIndex for data, LangChain for orchestration.
At SpeedMVPs, we select frameworks based on product requirements, not preferences.
Introduction
LangChain and LlamaIndex are the two dominant LLM frameworks. This guide explains when to use each based on your product.
What You'll Get
Comparison Matrix
Side-by-side analysis.
Cost Analysis
Real-world cost comparison.
Risk Assessment
What can go wrong with each option.
Decision Framework
How to choose for your case.
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What are the key differences?
See our detailed comparison above. The right choice depends on your specific requirements, budget, timeline, and team capabilities.
Can SpeedMVPs help me decide?
Yes. Our scoping process includes technology and approach analysis. We recommend based on your specific situation, not preferences.
How do I get started?
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Portfolio: AI Products Built for Global Startups
From content platforms and AI assistants to analytics dashboards and fintech solutions: see how we've transformed ideas into production-ready MVPs in 2-3 weeks across diverse industries. Each product here is one our team worked on.
UseArticle
AI-powered content creation and management platform that helps teams produce high-quality articles at scale.
AgentHi
Intelligent virtual assistant that streamlines customer support and automates routine business tasks.
StatsHub
Comprehensive analytics dashboard providing real-time insights and data visualization for businesses.
Harimaxx
Personal fitness companion with AI-driven workout plans and nutrition tracking for optimal health.
Vaga
Smart travel planning app that curates personalized itineraries and local experiences.
FoodScan
Nutrition analysis app that scans food items and provides detailed nutritional information instantly.
MyJobReach
Job matching platform connecting talented professionals with their dream opportunities.
TravelGram
Social platform for travelers to share experiences, discover destinations, and connect globally.
SuperStatz
Advanced sports statistics platform delivering in-depth analysis and performance metrics.
Cashbook
Simple expense tracking and budgeting app that helps users manage their finances effortlessly.
TypeFast
Typing speed improvement platform with gamified lessons and real-time performance tracking.
Easy Loan
Streamlined loan management system that simplifies borrowing and lending processes.
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