LlamaIndex
FreemiumData framework for connecting custom data to large language models
🧱Agent FrameworksAbout LlamaIndex
LlamaIndex (formerly GPT Index) specializes in connecting LLMs to external data sources. It provides tools for data ingestion, indexing, and retrieval that power RAG applications and data agents. LlamaHub offers 300+ data connectors, and the framework supports building agents that can query structured and unstructured data.
What's Great
- ✓Best-in-class RAG framework with advanced retrieval strategies
- ✓LlamaHub provides 300+ pre-built data connectors
- ✓Supports both structured (SQL) and unstructured data querying
- ✓Active development with frequent releases and improvements
- ✓LlamaCloud offers managed indexing and retrieval infrastructure
Watch Out For
- !Focused on data/RAG — less comprehensive for general agent orchestration
- !API changes frequently as the framework evolves rapidly
- !Performance tuning for production RAG requires significant experimentation
- !Steeper learning curve for advanced retrieval strategies
Common Use Cases
Building a RAG chatbot over company documentation and knowledge base
Creating a data agent that queries SQL databases using natural language
Developing a research tool that ingests and indexes PDFs, Notion, and Slack
Pricing Model
Freemium
Free plan available. Paid plans unlock advanced features and higher limits.
Category
Agent Frameworks
Open-source libraries and SDKs for building custom AI agents from scratch.
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